Battery Battery Protection IC Lithium Ion/Polymer SOT-26

Battery Battery Protection IC Lithium Ion U-DFN2030-6 (Type C)

10-Series Battery Monitor and Protector IC – Battery monitoring and protection IC for 3- to 10-series Li-ion, Li-polymer, and LiFePO4 battery packs. The Texas Instruments BQ76942PFBR provides cell-voltage, current, and temperature monitoring, autonomous or host-controlled cell balancing, high-side NFET drivers, and secondary fuse protection. It supports ±200 mV current measurement, 400 kHz I²C, SPI, and HDQ interfaces, and temperature sensing through an internal sensor plus up to 9 external thermistors. It operates with up to 85 V on the cell-connect inputs and is housed in a 48-pin TQFP package. #TexasInstruments #BQ76942 #BatteryMonitor #BatteryProtector #BMS #LiIon #LiPo #LiFePO4 #CellBalancing #BatteryManagement #I2C #SPI #EmbeddedSystems

2S–7S Battery Monitor and Protector IC – Multi-cell battery monitoring and protection IC designed for Li-Ion, Li-Polymer, LiFePO4, and LTO battery packs. The Texas Instruments BQ76907RGRR supports 2 to 7 series cells, with a 16-bit delta-sigma ADC for cell-voltage measurement, a dedicated 16-/24-bit coulomb-counter ADC, and host-controlled cell balancing. It provides overvoltage, undervoltage, overcurrent, short-circuit, overtemperature, and undertemperature protection, along with integrated low-side NFET drivers and open-wire detection. Communication is through 400 kHz I²C, with optional CRC support. The device operates from 3 V to 38.5 V, supports temperature sensing through an internal sensor and external thermistor, and is housed in a 20-pin 3.5 × 3.5 mm VQFN package with an operating temperature range of −40°C to +110°C. #TexasInstruments #BQ76907 #BQ76907RGRR #BatteryMonitor #BatteryProtector #BMS #BatteryManagement #LiIon #LiPo #LiFePO4 #LTO #CellBalancing #I2C #BatteryProtection #PowerManagement

10-Series Li-Ion/LiFePO₄ Battery Monitor and Protector – Multicell battery monitoring and protection IC designed to monitor and protect 3- to 10-series Li-ion, Li-polymer, and LiFePO₄ battery packs. The Texas Instruments BQ7694202PFBR provides cell-voltage, temperature, and current monitoring, integrated cell balancing, high-side NFET protection drivers, and overvoltage, undervoltage, overcurrent, short-circuit, and temperature protection. It supports 400-kHz I²C, SPI, and HDQ communication, includes a high-accuracy coulomb counter, supports an internal temperature sensor plus up to nine external thermistors, and operates from −40°C to +85°C in a 48-pin TQFP package. #TexasInstruments #BQ76942 #BQ7694202PFBR #BatteryMonitor #BatteryProtector #BMS #CellBalancing #LiIon #LiFePO4 #BatteryManagement #I2C #SPI #EmbeddedSystems

BQ29209DRBR – Integrated 2-cell Li-ion/Li-polymer battery protection and management IC. Provides overvoltage, undervoltage, and overcurrent protection for each cell while incorporating automatic cell balancing to maintain uniform charge levels. Designed for compact 2S battery pack applications, it ensures safe and reliable operation in portable electronics, battery-powered devices, and custom BMS circuits. Ideal for extending battery life, preventing overcharge or deep discharge, and supporting high-efficiency energy management. #2SLiIonBMS #BatteryProtectionIC #CellBalancing #OvervoltageProtection #UndervoltageProtection #OvercurrentProtection #PortableElectronics #BMSDesign

Battery Management 2-Cell Li-ion Protection IC #CommonPartsLibrary #IntegratedCircuit #PowerManagement #BatteryManagement

Overcharge, overcurrent and overdischarge protection IC for single cell lithium-ion/polymer battery battery protection li-ion lipo overcurrent overdischarge overcharge SOT?23*

This project is a TP5410-based Battery Management System (BMS) circuit. The TP5410 IC handles battery charging, voltage regulation, and protection. It uses various capacitor, resistor, and diode components along with LEDs for status indication, making it an ideal solution for portable electronic devices. #project #Template #charger #reusable #module #batterycharger #template #bms #TP5410 #topPowerASIC #toppower #toppowerasic

TPS4816-Q1 is an automotive-qualified high-side switch controller from Texas Instruments designed for intelligent power distribution, battery management, DC/DC converter protection, and automotive power systems. Supporting operating voltages from 3.5 V to 95 V (100 V absolute maximum), the device drives external N-channel MOSFETs and provides advanced protection, diagnostics, and bidirectional current monitoring. Integrated features include overcurrent protection with programmable circuit breaker timer (I²t), fast short-circuit protection, undervoltage and overvoltage protection, reverse polarity protection down to -60 V, gate pre-charge circuitry for capacitive loads, temperature monitoring, and fault diagnostics. The controller is optimized for 12 V, 24 V, and 48 V automotive architectures, offering low standby current, high reliability, and robust protection for power distribution and battery-connected systems. Search Keywords: TPS4816-Q1, TPS4816Q1, Texas Instruments TPS4816, High Side Switch Controller, Automotive High Side Driver, Smart High Side Switch, MOSFET Controller, Battery Protection Controller, Automotive Power Distribution, Electronic Fuse Controller, eFuse Controller, Reverse Polarity Protection IC, Bidirectional Current Monitor, I2t Protection Controller, Automotive Power Management IC, 48V Automotive System, DC DC Converter Protection, Battery Management System Controller, High Voltage Switch Controller, Automotive Diagnostics IC Hashtags: #TPS4816Q1 #TexasInstruments #HighSideSwitch #SmartSwitch #AutomotiveElectronics #PowerDistribution #BatteryManagement #PowerManagement #MOSFETDriver #EFuse #CircuitProtection #CurrentMonitoring #AutomotivePower #DCDCConverter #EmbeddedSystems #PowerElectronics #ElectronicsDesign #PCBDesign #HardwareEngineering #ElectricalEngineering

BQ7961x-Q1 family (BQ79612-Q1, BQ79614-Q1, BQ79616-Q1, BQ79616H-Q1) are automotive-grade, functional safety-compliant battery monitoring and balancing ICs from Texas Instruments for high-voltage Battery Management Systems (BMS). The devices support 12, 14, or 16 series-connected lithium-ion battery cells and provide high-accuracy voltage measurements, integrated cell balancing, hardware protection, temperature monitoring, and isolated daisy-chain communication. Designed for hybrid and electric vehicles (HEV/EV) and energy storage systems (ESS), the BQ7961x-Q1 family supports ISO 26262 functional safety up to ASIL D, integrated diagnostics, redundant voltage measurement paths, configurable digital filtering, and stackable architectures for large battery packs. The family offers precise battery state monitoring, enhanced safety, and scalable BMS implementation for automotive and industrial energy storage applications. Search Keywords: BQ79612-Q1, BQ79614-Q1, BQ79616-Q1, BQ79616H-Q1, BQ7961x-Q1, Texas Instruments BQ79616, Battery Monitor IC, Battery Management System IC, BMS Controller, Automotive BMS, EV Battery Monitor, Cell Balancing IC, High Voltage Battery Monitor, ISO26262 ASIL-D, Automotive Battery Protection, Lithium Battery Monitor, Energy Storage BMS, Stackable Battery Monitor, Battery Pack Monitoring, Cell Voltage Measurement IC, Electric Vehicle Battery Management Hashtags: #BQ79612Q1 #BQ79614Q1 #BQ79616Q1 #BQ79616HQ1 #BQ7961xQ1 #TexasInstruments #BatteryManagementSystem #BMS #CellBalancing #BatteryMonitor #ElectricVehicle #EVBattery #EnergyStorage #LithiumBattery #AutomotiveElectronics #ISO26262 #ASILD #PowerElectronics #EmbeddedSystems #HardwareDesign BQ79612-Q1

Linear Voltage Regulators (LDO) MIC5209-1.8YM SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL LCSC Part Number: C150786 Microchip MIC5209 – 500 mA low-noise Low Dropout (LDO) linear voltage regulator designed for battery-powered and noise-sensitive applications. Supports input voltages from 1.8 V to 15 V and provides highly accurate regulated output with low dropout voltage and excellent line/load regulation. Features current limiting, thermal shutdown, reverse-battery protection, low quiescent current, and stable operation with minimal external components. Available in fixed and adjustable output versions for portable electronics, embedded systems, RF circuits, sensors, and post-regulation of switching power supplies. Search Keywords: MIC5209, Microchip MIC5209, LDO Regulator, Low Noise LDO, 500mA Voltage Regulator, Linear Regulator, Low Dropout Regulator, Adjustable LDO, Fixed Output LDO, Battery Powered Regulator, Power Management IC, Embedded Power Supply, Analog Power IC, Post Regulator, Low Quiescent Current Regulator, Reverse Battery Protection, Thermal Shutdown Regulator, 3.3V Regulator, 5V Regulator, Precision Voltage Regulator Hashtags: #MIC5209 #Microchip #LDO #LDORegulator #VoltageRegulator #LinearRegulator #LowNoiseLDO #PowerManagement #PowerSupply #AnalogIC #EmbeddedSystems #BatteryPowered #LowDropoutRegulator #PowerElectronics #ElectronicsDesign #PCBDesign #HardwareDesign #IndustrialElectronics #IoTDevices #VoltageRegulation

The FS8205A is a dual N-channel enhancement-mode power MOSFET designed primarily for lithium-ion and lithium-polymer battery protection applications. Manufactured by several semiconductor vendors including Fortune Semiconductor, this device integrates two low on-resistance MOSFETs within a compact surface-mount package, enabling efficient bidirectional current control for battery charging and discharging systems. The device is commonly paired with single-cell battery protection controller ICs such as the DW01A to provide overcharge, overdischarge, overcurrent, and short-circuit protection in portable electronic products. Its low drain-to-source resistance minimizes conduction losses and improves overall battery efficiency while maintaining compact PCB layout requirements. The FS8205A is widely used in battery management systems, portable consumer electronics, rechargeable battery packs, USB-powered devices, IoT hardware, and embedded power management circuits requiring reliable load switching and battery protection functionality. Engineering Specification Device Type Dual N-channel power MOSFET Transistor Technology Enhancement-mode MOSFET architecture Channel Configuration Dual independent N-channel MOSFETs Switching Characteristics Low on-resistance for efficient power switching Gate Characteristics Logic-level gate drive compatibility Current Handling Optimized for battery charge and discharge current control Power Efficiency Low conduction loss for improved battery runtime Protection System Compatibility Designed for lithium battery protection controller integration Thermal Characteristics Compact thermal-efficient surface-mount structure Package Type SOP-8 surface-mount package Mounting Style Surface mount technology Reliability Features Stable switching performance and robust load handling capability Applications Lithium-ion battery protection Battery management systems Portable electronics Rechargeable battery packs USB-powered devices Power path switching Embedded systems Consumer electronics IoT hardware Load switching circuits Manufacturer Commonly manufactured by Fortune Semiconductor and compatible vendors #commonpartslibrary #mosfet #dualmosfet #nchannelmosfet #batteryprotection #batterymanagement #powermanagement #powerelectronics #embeddedhardware #consumerelectronics #surfaceountcomponents #electronicsdesign #lithiumbattery #loadswitch #portableelectronics

1.5A USB-Friendly Li-Ion Battery Charger and Power-Path Management IC with 4.2 VBAT The BQ24075TRGTR (from Texas Instruments) is a highly integrated single-cell Li-Ion / Li-Polymer linear battery charger IC with power-path management. It is designed for portable and space-constrained applications, allowing a device to be powered from a USB port or AC adapter while simultaneously charging the battery. The device integrates charging control, power-path management, and safety features into a compact package. A key feature is its Dynamic Power Path Management (DPPM), which ensures the system is powered even when the battery is low or absent, while intelligently managing charging current. Key Features Battery Charging Supports single-cell Li-Ion / Li-Polymer batteries Up to 1.5 A programmable charge current Three-phase charging: Pre-charge (conditioning) Constant current Constant voltage Fixed 4.2 V charge voltage Power Path Management Dynamic Power Path Management (DPPM): Powers system and charges battery simultaneously Prioritizes system load over charging Allows system operation even with: Deeply discharged battery No battery connected Input & Power Features Operates from: USB input (100 mA / 500 mA selectable) AC adapter Programmable input current limit up to 1.5 A Input voltage range: ~4.35 V to 6.4 V (28 V max rating) Input dynamic power management (VIN-DPM) prevents source overload Protection & Safety Thermal regulation and shutdown Over-voltage protection (OVP) Short-circuit and reverse current protection Battery temperature monitoring (NTC thermistor input) Battery disconnect (SYSOFF) feature Control & Status Standalone operation (no MCU required, resistor-programmable) Charge status outputs: Charging Charge complete Power good Physical Characteristics Package: 16-pin VQFN (3 mm × 3 mm) Operating temperature: –40°C to +85°C #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

Battery Fuel Gauge IC Lithium Ion/Polymer 24-TQFN (4x4) The MAX17320G20+ is a high-accuracy, ultra-low-power fuel gauge and battery protector IC designed for 2-cell to 4-cell lithium-ion and lithium-polymer battery packs. The device integrates Maxim Integrated’s ModelGauge™ m5 EZ algorithm to provide precise battery state-of-charge estimation without requiring battery relearning after system resets or battery replacement. It is optimized for portable, wearable, industrial, and IoT battery-powered applications where accurate battery monitoring and robust protection are required. The device combines fuel gauging, battery authentication support, autonomous battery protection, current sensing, and voltage monitoring into a single integrated solution. It includes configurable protection features such as overvoltage, undervoltage, overcurrent, short-circuit, and thermal protection, helping improve system safety and battery reliability. The MAX17320G20+ communicates through an I²C-compatible interface and supports low-power operation for extended battery runtime. Features High-accuracy battery fuel gauge for multi-cell lithium-ion batteries Supports 2-cell to 4-cell battery pack configurations Integrated ModelGauge m5 EZ algorithm with no battery relearning required Integrated battery protector with autonomous safety monitoring Supports overvoltage, undervoltage, overcurrent, short-circuit, and thermal protection Integrated current-sense amplifier for accurate current measurement Low quiescent current optimized for portable and always-on systems I²C-compatible communication interface Configurable alert and interrupt functions Battery aging compensation and cycle tracking Supports battery authentication functionality Integrated ADCs for voltage, current, and temperature monitoring Programmable protection thresholds and timing parameters Low-power hibernate and sleep operating modes Electrical Characteristics Designed for lithium-ion and lithium-polymer battery chemistries Supports battery stack voltages corresponding to 2S to 4S configurations High-resolution voltage, current, temperature, and capacity measurements Low operating current suitable for battery-powered systems Integrated precision coulomb counter Wide operating temperature range suitable for industrial applications Protection Functions Cell overvoltage protection Cell undervoltage protection Charge overcurrent protection Discharge overcurrent protection Short-circuit protection Overtemperature and undertemperature protection Permanent failure detection and fault logging Autonomous FET control for pack isolation Interface and Control I²C serial communication interface Programmable registers for protection and fuel gauge configuration Interrupt and alert outputs for fault and status indication Supports host processor communication and diagnostics Nonvolatile memory for configuration storage Package Information Package type is TQFN Compact surface-mount package suitable for space-constrained designs RoHS compliant and lead-free package option Typical Applications Smart battery packs Portable medical devices Industrial handheld equipment IoT and wireless sensor devices Battery-powered consumer electronics Portable test and measurement systems Rechargeable multi-cell battery systems #commonpartslibrary #integratedcircuit #powermanagement #batterymanagement

Charger IC Lithium Ion 16-VQFN (3x3) The BQ24075RGTR is a standalone linear charger and power-path management integrated circuit developed by Texas Instruments for single-cell lithium-ion and lithium-polymer battery applications. The device is designed for portable and space-constrained electronic systems requiring efficient battery charging, USB compatibility, and simultaneous system power delivery. The integrated dynamic power-path management architecture enables the system load to be powered while independently charging the battery. The charger supports operation from either a USB power source or an external adapter and includes programmable charging and input current limiting functions for optimized power management. The device incorporates multiple protection and monitoring features including thermal regulation, overvoltage protection, reverse current protection, battery temperature monitoring, and safety timers. The BQ24075RGTR also provides battery disconnect capability through the SYSOFF control function, making it suitable for low-power and portable embedded designs. Typical applications include portable consumer electronics, handheld instruments, wearable devices, wireless accessories, battery-powered IoT equipment, medical portable systems, and embedded rechargeable products. Device Features Standalone single-cell lithium-ion and lithium-polymer battery charger Integrated power-path management architecture Simultaneous battery charging and system power support USB-compatible input current limiting Programmable fast-charge current capability Dynamic power management for unstable or limited input sources Battery temperature monitoring through external thermistor input Integrated thermal regulation and protection mechanisms Reverse current, short-circuit, and input overvoltage protection Programmable safety timers for pre-charge and fast-charge modes Charging status and power-good indication outputs Battery disconnect functionality through SYSOFF control Compact surface-mount VQFN package implementation Electrical Characteristics Designed for single-cell lithium-ion or lithium-polymer batteries Fixed battery regulation voltage suitable for standard single-cell charging Supports USB and external adapter input operation Linear charging topology Wide operating temperature range for portable and industrial applications Programmable input current limit for USB compliance and adapter compatibility Package Information Package Type: VQFN Pin Configuration: Sixteen-pin package Mounting Style: Surface mount Package Dimensions: Compact three-millimeter square footprint Functional Overview The BQ24075RGTR manages power distribution between the external input source, the system load, and the rechargeable battery. When external power is present, the device prioritizes powering the system while charging the battery according to programmable charging parameters. Dynamic power management prevents excessive loading of weak USB or adapter sources by automatically reducing charging current when necessary. Thermal regulation circuitry continuously monitors device temperature and adjusts charging operation to maintain safe operating conditions. Additional integrated protection functions ensure reliable operation during fault conditions such as input overvoltage, battery temperature abnormalities, reverse current flow, and output short circuits. #commonpartslibrary #integratedcircuit #powermanagement

Battery Battery Monitor IC Lithium Ion 9-DSBGA The BQ27220YZFR is a highly integrated single-cell battery fuel gauge IC developed for rechargeable lithium-ion and lithium-polymer battery applications. The device utilizes Texas Instruments’ Impedance Track™ algorithm to provide highly accurate battery capacity measurement, state-of-charge estimation, runtime prediction, and battery health monitoring across varying load and temperature conditions. The device is designed for compact portable electronics, wearable devices, IoT products, handheld instruments, and low-power embedded systems requiring precise battery monitoring and extended operating life. The BQ27220YZFR supports system-side fuel gauging without requiring battery pack-side electronics, simplifying battery integration and reducing overall system cost. The fuel gauge continuously monitors battery voltage, current, and temperature to estimate available capacity, remaining runtime, full charge capacity, and state-of-health information. Integrated low-power operation enables ultra-low standby current consumption suitable for always-on battery-powered products. Communication with the host processor is implemented through a standard I²C interface, allowing configuration access, telemetry reporting, and battery parameter monitoring. The device also integrates protection and alert functionality through programmable interrupt outputs and battery condition monitoring features. The BQ27220YZFR is optimized for use with single-cell lithium-based chemistries and supports learning cycles for adaptive battery characterization over product lifetime. Internal data flash memory stores battery profile information and calibration parameters to improve long-term gauging accuracy. The device is supplied in a compact lead-free wafer chip-scale package suitable for space-constrained PCB designs and portable electronics requiring minimal footprint and low-profile assembly. Electrical Characteristics Device Type Single-cell battery fuel gauge and battery monitor IC Battery Chemistry Support Lithium-ion and lithium-polymer rechargeable batteries Input Voltage Range Supports single-cell battery operation Fuel Gauging Method Impedance Track™ algorithm Communication Interface I²C serial interface Measurement Functions Battery voltage monitoring Battery current monitoring Battery temperature monitoring State-of-charge estimation Remaining capacity calculation Full charge capacity estimation State-of-health reporting Runtime prediction Power Consumption Ultra-low operating current for portable applications Temperature Monitoring External thermistor support Host Alert Features Interrupt and alert reporting capability Data Storage Integrated nonvolatile configuration memory Calibration Features Automatic learning and battery characterization support Protection Monitoring Battery condition and system monitoring functions Package Type DSBGA wafer chip-scale package Mounting Style Surface mount Operating Temperature Range Industrial temperature operation suitable for portable electronics Functional Features High-accuracy fuel gauging over battery lifetime Adaptive battery modeling and aging compensation Low-power operation for battery-powered systems Integrated battery profiling capability Real-time remaining runtime estimation Automatic battery learning cycles Compact PCB footprint for portable devices System-side implementation without smart battery pack requirement Programmable battery alert functionality Support for low-power embedded processors and mobile systems Optimized for wearable and IoT applications RoHS compliant and lead-free package construction #commonpartslibrary #integratedcircuit #powermanagement #batterymanagement

Charger IC Multi-Chemistry 36-VQFN (5x6) The BQ25750RRVR is a highly integrated switch-mode battery charge controller and power-path management device designed for single-cell to multi-cell lithium-ion and lithium-polymer battery-powered systems. The device supports bidirectional power conversion, enabling both battery charging and system power delivery through USB Type-C and other DC power sources. It integrates high-efficiency buck-boost charging architecture to maintain optimal charging performance across a wide input voltage range. The device is intended for portable electronics, industrial handheld equipment, USB Power Delivery applications, embedded systems, and battery-powered computing platforms requiring advanced power management and flexible charging capability. Integrated power-path management allows simultaneous system operation and battery charging while maintaining battery protection and system stability. The BQ25750RRVR supports programmable charging parameters through an I2C interface, including charge voltage, charge current, input current limit, and system power regulation. The device includes comprehensive protection functions such as overvoltage protection, overcurrent protection, thermal regulation, battery temperature monitoring, and fault reporting. High switching frequency operation enables reduced external component size and compact PCB implementation. Features Integrated synchronous buck-boost battery charger Supports USB Power Delivery and wide DC input sources Bidirectional power conversion capability I2C programmable charging and system parameters Integrated power-path management High-efficiency charging operation Supports multi-cell lithium-ion and lithium-polymer batteries Programmable input current and charge current limits Dynamic power management and system voltage regulation Integrated ADC monitoring for voltage, current, and temperature Battery supplement mode during adapter removal OTG boost mode support Thermal regulation and thermal shutdown protection Input overvoltage and overcurrent protection Battery overvoltage protection Safety timer and watchdog timer support NTC thermistor interface for battery temperature monitoring Interrupt and fault status reporting Compact WQFN package suitable for space-constrained designs Electrical Characteristics Wide input operating voltage range Programmable battery charge voltage High charge current capability Integrated low RDS(on) MOSFET drivers High switching frequency operation High conversion efficiency across operating range Low standby and shutdown current consumption Accurate input and charge current regulation Integrated analog-to-digital converter telemetry Interface and Control I2C serial communication interface Programmable charging profiles Configurable protection thresholds Status and interrupt reporting ADC telemetry reporting Enable and control pins for system integration Protection Features Input overvoltage protection Input overcurrent protection Battery overvoltage protection Thermal shutdown protection Thermal regulation control Short-circuit protection Watchdog timer protection Safety charging timer Battery temperature qualification support Package Information Package Type: WQFN Package Suffix: RRV Compact thermally enhanced package Surface-mount device Suitable for automated PCB assembly processes Applications USB Type-C charging systems Portable computers and tablets Industrial handheld devices Power banks and battery packs Embedded battery-powered systems Portable instrumentation Consumer electronics Smart battery charging platforms #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

Battery Fuel Gauge IC Multi-Chemistry 32-QFN (4x4) The BQ41Z50RSNR is a highly integrated battery fuel gauge and battery management IC designed for single-cell and multi-cell lithium-ion and lithium-polymer battery packs. It provides accurate battery monitoring, protection, authentication, and state estimation functions for portable, industrial, and embedded power applications. The device incorporates advanced Impedance Track™ fuel gauging technology to deliver precise state-of-charge, state-of-health, and runtime predictions across varying operating conditions and battery aging profiles. The device integrates battery protection features including overvoltage, undervoltage, overcurrent, short-circuit, and temperature monitoring to enhance system safety and reliability. It supports SMBus and I²C communication interfaces for host processor interaction and system diagnostics. Internal flash memory allows programmable configuration parameters, calibration data, and battery profile storage. The BQ41Z50RSNR is optimized for compact battery-powered systems requiring accurate fuel gauging, low power consumption, and robust battery protection capabilities. Typical applications include notebooks, handheld devices, industrial instruments, portable medical equipment, smart battery packs, and embedded rechargeable systems. Engineering Specification Device Type Battery Fuel Gauge and Battery Management IC Battery Chemistry Support Lithium-Ion and Lithium-Polymer Cell Configuration Supports multi-cell battery pack configurations Fuel Gauging Technology Impedance Track™ battery fuel gauging Integrated Functions Battery monitoring State-of-charge estimation State-of-health estimation Remaining runtime prediction Battery protection Cell balancing support Authentication support Temperature monitoring Data logging and diagnostics Protection Features Overvoltage protection Undervoltage protection Overcurrent protection Short-circuit protection Charge and discharge protection Thermal protection Communication Interface SMBus compatible I²C compatible interface Non-Volatile Memory Integrated flash memory for configuration and battery profile storage Measurement Functions Battery voltage measurement Current measurement Temperature sensing Capacity tracking Cycle count monitoring Operating Voltage Designed for rechargeable battery pack applications Power Consumption Low-power operation optimized for portable devices Package Type QFN package Mounting Type Surface-mount device Operating Temperature Range Industrial operating temperature range suitable for portable and embedded applications Typical Applications Smart battery packs Portable electronics Industrial handheld equipment Medical portable devices Rechargeable embedded systems Battery-powered instrumentation #commonpartslibrary #integratedcircuit #powermanagement

Charger IC Lithium Ion/Polymer 18-WQFN-HR (3x2.5) The BQ25620RYKR is a highly integrated standalone switch-mode battery charge management and system power-path management device designed for single-cell lithium-ion and lithium-polymer batteries. The device integrates a synchronous buck charger, power-path management, input current optimization, and system regulation functions into a compact package suitable for portable and battery-powered embedded systems. It supports USB and adapter power sources with high-efficiency charging operation and dynamic power management for optimized thermal and power performance. The device includes integrated MOSFETs, charge termination, safety timers, input overvoltage protection, thermal regulation, and battery temperature monitoring. It supports I²C communication for programmable charging parameters, system monitoring, and fault reporting. The integrated narrow-voltage DC architecture improves efficiency while reducing external component count and PCB area. Engineering Specification Manufacturer: Texas Instruments Device Type: Single-Cell Li-Ion/Li-Polymer Switching Battery Charger with Power-Path Management Battery Chemistry Support: Lithium-Ion and Lithium-Polymer Charging Topology: Synchronous Buck Converter Input Supply Support: USB Power and External Adapter Sources Input Voltage Operating Range: Wide Input Voltage Support with Input Overvoltage Protection Charge Current Capability: High Current Fast Charging Support System Power Path: Integrated Dynamic Power-Path Management Communication Interface: I²C Serial Interface Integrated MOSFETs: High-Side and Low-Side Power MOSFETs Included Charging Functions: Preconditioning Charge Fast Charge Charge Termination Recharge Function Safety Timer Control Protection Features: Input Overvoltage Protection Battery Overvoltage Protection Thermal Shutdown Thermal Regulation Charge Safety Timer Input Current Limiting Short-Circuit Protection Battery Monitoring Features: Battery Temperature Monitoring via NTC Charge Status Reporting Fault Status Reporting System Voltage Regulation Power Management Features: Narrow Voltage DC Regulation Dynamic Input Power Management Input Current Optimization Automatic Power Source Detection Package Type: WQFN Package Package Variant: RYK Mounting Type: Surface Mount Application Areas: Portable Electronics Embedded Battery-Powered Systems Handheld Devices USB-Powered Equipment Industrial Portable Devices IoT Systems Consumer Electronics #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

Overvoltage/Surge Protection IC Internal Switch 20-WQFN (3x3) ESD protection and USB charging-port interface IC for USB 2.0 data lines, integrating IEC 61000-4-2 ±15 kV air and ±8 kV contact ESD protection with support for USB Battery Charging Specification Rev. 1.2 charger detection. It operates from a 2.5 V to 5.5 V supply, includes an integrated high-side VBUS switch rated for up to 1.5 A, and is housed in a 6-pin WQFN (RUK) package. #ESDProtection #USB2_0 #USBCharging #BC1_2 #VBUSSwitch #InterfaceIC #TexasInstruments #WQFN6

Battery Fuel Gauge IC Lithium Ion/Polymer 14-TDFN (3x3) Battery fuel gauge and protector for 1-cell lithium-ion/polymer batteries, integrating ModelGauge™ m5 EZ technology for state-of-charge estimation with configurable battery protection functions. It supports a 2.3 V to 4.9 V battery operating range, communicates through an I²C interface, measures voltage, current, and temperature, and is housed in a 15-bump WLP package. #BatteryFuelGauge #BatteryProtection #LiIonBattery #ModelGaugeM5 #I2C #AnalogDevices #MaximIntegrated #PowerManagement #WLP15

Charger IC Multi-Chemistry 32-QFN (4x4) The BQ25730RSNR is a highly integrated synchronous buck battery charger and system power management IC developed by Texas Instruments for applications requiring efficient charging of multi-cell lithium-ion and lithium-polymer batteries. The device is optimized for USB Type-C, USB Power Delivery, industrial, and portable embedded systems where high charging efficiency, flexible power management, and compact implementation are required. The charger integrates high-side and low-side MOSFET gate drivers along with advanced power path management features, enabling efficient battery charging while simultaneously powering the system load. The architecture supports NVDC power path operation, allowing stable system voltage regulation even when the battery is deeply discharged or absent. The device supports a wide operating input voltage range and programmable charging parameters suitable for various battery chemistries and capacities. Integrated input current optimization and dynamic power management help maximize available adapter power while preventing overload conditions. The BQ25730RSNR communicates with the host processor through an I²C interface, enabling software configuration, telemetry monitoring, and fault management. Internal ADC functionality provides real-time monitoring of charging voltage, current, temperature, and system operating conditions. Its high integration level reduces external component count and PCB area, making it suitable for compact industrial and portable power applications. Electrical Characteristics Wide input voltage operating range compatible with USB PD adapters and industrial power sources. Supports multi-cell lithium-ion and lithium-polymer battery charging configurations. High-efficiency synchronous buck charging architecture. Programmable charge current and charge voltage through digital control interface. Integrated ADC for system telemetry and power monitoring. Dynamic power management optimizes adapter utilization and system stability. Low standby current operation for battery-powered systems. Charging Features Constant current and constant voltage charging modes. Programmable input current limiting for USB and adapter compliance. Battery preconditioning and charge termination functionality. Support for fast charging operation with thermal regulation. Power path management enables simultaneous battery charging and system operation. Automatic recharge and battery maintenance functionality. Protection Features Input overvoltage protection. Battery overvoltage and overcurrent protection. Thermal regulation and thermal shutdown protection. Short-circuit and fault condition protection. Battery temperature monitoring support using external NTC thermistors. Reverse current protection and adapter isolation. Interface and Control I²C serial communication interface for configuration and monitoring. Programmable charging profiles and operating parameters. Interrupt and status reporting capabilities. Integrated telemetry reporting for voltage, current, and temperature measurements. Autonomous operation capability with minimal host intervention. Package Information Package type is WQFN. Compact thermally enhanced surface-mount package. Optimized for automated PCB assembly and high-density layouts. Applications USB Type-C and USB Power Delivery systems. Industrial portable electronics. Embedded computing platforms. Portable medical and instrumentation equipment. Battery-powered industrial controllers. Handheld terminals and data acquisition systems. Portable consumer and commercial electronics. #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

Charger IC Lithium Ion/Polymer 18-WQFN-HR (3x2.5) The BQ25622RYKR is a highly integrated standalone switch-mode battery charge management and system power-path management device designed for single-cell lithium-ion and lithium-polymer batteries. The device integrates a high-efficiency synchronous buck charger, system power-path control, input current management, and battery protection functions into a compact solution optimized for portable and embedded applications. The device supports USB and external adapter power sources while providing programmable charging parameters through an I²C interface. Integrated power MOSFETs and advanced power management features reduce external component count and improve overall system efficiency. The charger incorporates dynamic power management, thermal regulation, battery temperature monitoring, and multiple safety protections to ensure reliable operation under varying load and environmental conditions. The BQ25622 family is designed for compact battery-powered systems requiring efficient charging, intelligent power-path control, and low system power consumption. Engineering Specification Manufacturer: Texas Instruments Device Type: Single-Cell Li-Ion/Li-Polymer Switching Battery Charger with Integrated Power-Path Management Battery Chemistry Support: Lithium-Ion and Lithium-Polymer Charging Topology: Synchronous Buck Switching Charger Input Power Sources: USB Input and External DC Adapter Support Charge Current Capability: Programmable Fast Charge Current Support Communication Interface: I²C Serial Communication Interface Integrated Power Devices: Internal High-Side and Low-Side MOSFETs Charging Features: Precharge Mode Fast Charge Mode Charge Termination Automatic Recharge Programmable Charge Parameters Safety Timer Control Power Management Features: Dynamic Power-Path Management Input Current Optimization Narrow Voltage DC Regulation Input Voltage Regulation System Voltage Regulation Monitoring and Reporting Features: Charge Status Monitoring Fault Status Reporting Battery Temperature Monitoring through NTC Interface Input Source Detection Protection Features: Input Overvoltage Protection Battery Overvoltage Protection Thermal Shutdown Protection Thermal Regulation Input Current Limiting Short-Circuit Protection Safety Timer Protection Package Type: WQFN Package Package Variant: RYK Mounting Type: Surface Mount Typical Applications: Portable Consumer Electronics Embedded Battery-Powered Devices IoT Systems Handheld Industrial Equipment USB-Powered Systems Wearable Electronics Portable Medical Devices #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

OR Controller P-Channel 1:1 SC-70-6 The LM66100DCKR is an ideal diode and power path management device manufactured by Texas Instruments. This integrated circuit is designed to provide low-loss reverse polarity protection and automatic power path control for low-voltage DC power systems. By utilizing an integrated low-resistance MOSFET architecture, the device significantly reduces forward voltage drop and power dissipation compared to conventional Schottky diodes. The device supports automatic source selection, reverse current blocking, and efficient power OR-ing functionality, making it suitable for battery-powered devices, USB-powered electronics, industrial embedded systems, portable equipment, and redundant power supply architectures. Its ultra-low forward voltage characteristics improve overall system efficiency and help extend battery operating life in portable applications. The LM66100DCKR is optimized for compact embedded designs requiring efficient power routing, input protection, and seamless power source switching while minimizing thermal losses and PCB footprint requirements. Engineering Specification Device Type Ideal diode and power path protection IC Power Management Function Reverse current blocking and automatic power path control Switching Technology Integrated low-resistance MOSFET architecture Reverse Protection Reverse polarity and reverse current protection Forward Voltage Characteristics Ultra-low forward voltage drop for high-efficiency operation Power Path Features Automatic source selection and power OR-ing support Efficiency Characteristics Reduced conduction loss compared to conventional diode solutions Input Characteristics Designed for low-voltage DC power rail operation Thermal Characteristics Low thermal dissipation due to efficient MOSFET conduction Protection Features Reverse current blocking Reverse polarity protection Power path isolation Fault-tolerant operation Package Type SC70 surface-mount package Mounting Style Surface mount technology Applications Battery-powered electronics USB-powered systems Power multiplexing Portable devices Embedded systems Industrial electronics Redundant power supplies Power OR-ing circuits IoT hardware Low-power electronic systems Manufacturer Texas Instruments #commonpartslibrary #idealdiode #powermanagement #reversepolarityprotection #powerpathcontroller #texasinstruments #powerelectronics #embeddedhardware #portableelectronics #surfaceountcomponents #electronicsdesign #powersupply #usbpower #batterypowered #industrialelectronics