This project is a reference design based on the BQ24230 , a single cell Li-Ion battery charger. It manages the power between an external power source (VIN), a Li-Ion battery (BAT), and a system power rail (SYS). Key features include power-path management, battery thermistor monitoring, and charge status indication. #Module #BQ24230 #ReferenceDesign #charger #BatteryManagement #reusable #module #bms #texas-instruments #sublayout #polygon

300mA Low Voltage Buck-Boost Converter with PowerPath and 1.6μA Quiescent Current #Submodule #Sublayout #Batterycharger

TPS25752ASRSMR is a TI USB Type-C and USB Power Delivery 3.2 controller/PMIC with integrated power-path control and protection for USB-C source, sink, and dual-role power applications, supplied in a 32-pin 4 × 4 mm VQFN package. Keywords: TPS25752A, TPS25752ASRSMR, USB-C controller, USB PD 3.2, Type-C PMIC, VQFN-32

I²C Controlled 3A Single-Cell Battery Charger with High Input Voltage Capability and Narrow Voltage DC (NVDC) Power Path Management Battery charger IC for single-cell Li-Ion and Li-Polymer batteries with an input voltage range of 3.9V to 13.5V. Supports up to 3A programmable charge current, 5A boost output, and integrates power-path management, input current/voltage regulation, I²C interface, and comprehensive charging and protection functions in a TQFN-24 (4mm × 4mm) package. #BatteryChargerIC #SingleCellLiIon #LiPolymer #3ACharge #5ABoost #PowerPathManagement #I2C #InputVoltageRegulation #TQFN24 #SGMICRO

Electronic Fuse Regulator 4A 8-WSON (2x2) The TPS259530DSGR is a compact, integrated eFuse protection device designed to provide robust power-path management for low-voltage DC systems, particularly nominal five-volt rails. It combines multiple protection and control features into a single solution, enabling safe distribution of power to downstream circuitry while minimizing the need for external components. The device supports controlled inrush current during startup, continuous current monitoring, and rapid fault response to protect both the power source and the load. Integrated protection mechanisms include overvoltage protection, undervoltage lockout, overcurrent limiting, thermal shutdown, and reverse current blocking. This makes the device well suited for applications requiring high reliability, such as embedded systems, industrial electronics, consumer devices, and communication equipment. Functional Description The device operates as a high-side protection switch using an internal MOSFET to control current flow from the input supply to the load. It monitors input voltage, output current, and internal temperature to ensure operation within safe limits. When a fault condition such as overcurrent or overvoltage is detected, the device limits or interrupts current flow to prevent damage. The integrated control loop provides smooth startup by limiting inrush current and preventing supply droop. Reverse current blocking prevents unwanted current flow from the output back to the input when the input supply is removed or drops below the output level. Electrical Characteristics The device supports operation across a wide input voltage range suitable for low-voltage DC systems, including typical five-volt rails. It features an adjustable overvoltage protection threshold aligned with five-volt system requirements, along with configurable undervoltage lockout to ensure proper system startup and shutdown behavior. The current limit is externally programmable, allowing flexibility for different load conditions. The device exhibits low on-resistance to minimize power dissipation and voltage drop during normal operation. Protection Features The TPS259530DSGR integrates multiple protection functions to enhance system robustness. Overvoltage protection prevents excessive input voltage from reaching the load. Undervoltage lockout ensures the device only operates when the input supply is within a valid range. Overcurrent protection actively limits current during fault conditions and can respond rapidly to short circuits. Thermal shutdown protects the device from overheating by disabling operation when internal temperature exceeds safe limits. Reverse current blocking prevents backflow of current, safeguarding both the source and load. Control and Interface The device includes an enable control input that allows external control of the power path. It supports configurable behavior for fault response and recovery, depending on system design. External components can be used to set thresholds such as current limit and undervoltage lockout, providing design flexibility. Status signaling allows system-level monitoring of fault conditions. Mechanical and Package Information The TPS259530DSGR is provided in a compact surface-mount package suitable for space-constrained applications. The package is optimized for thermal performance and efficient PCB layout, enabling reliable operation under varying load conditions. It is supplied in tape-and-reel format for automated assembly processes. Applications This device is intended for use in systems requiring reliable power distribution and protection. Typical applications include five-volt power rails in embedded systems, industrial control modules, consumer electronics, communication devices, and peripheral power management circuits. Summary The TPS259530DSGR offers an integrated, high-reliability solution for power path protection and management in low-voltage systems. Its combination of protection features, configurability, and compact form factor makes it a widely used choice for safeguarding five-volt supply rails in modern electronic designs. #commonpartslibrary #integratedcircuit #powermanagement

Stand-alone single-cell linear battery charger with power path BQ24074RGTT is a highly integrated standalone linear charger and power-path management IC from Texas Instruments designed for single-cell Li-Ion/Li-Polymer battery-powered portable devices. It supports charging directly from USB ports or external adapters while simultaneously powering the system load through integrated Dynamic Power Path Management (DPPM). The device is commonly used in portable electronics, IoT devices, wireless accessories, handheld medical devices, and battery-powered embedded systems. Key Features Single-cell Li-Ion/Li-Polymer battery charger Up to 1.5 A programmable charge current Integrated Dynamic Power Path Management (DPPM) USB-compliant charging support Selectable 100 mA / 500 mA USB current limits Programmable input current limit up to 1.5 A Supports both USB input and wall adapters Input overvoltage protection up to 28 V absolute maximum Integrated thermal regulation and thermal shutdown Reverse-current and short-circuit protection Programmable pre-charge and fast-charge safety timers Battery temperature monitoring via NTC thermistor input Charge status outputs for charging/done indication Current monitoring output (ISET) Compact 16-pin VQFN (3×3 mm) package Wide operating temperature range suitable for industrial applications Typical Applications TWS charging cases and earbuds Portable medical devices IoT and asset tracking systems Handheld gaming accessories Video doorbells and IP cameras Portable embedded systems and development boards Important Design Notes Designed specifically for 1-cell battery applications Requires proper thermal PCB layout due to linear charging architecture DPPM allows the system to operate even with a deeply discharged or missing battery Recommended for compact designs needing integrated charging and system power-path control #CommonPartsLibrary #IntegratedCircuit #PowerManagement

Electronic Fuse Regulator 5.3A 20-WQFN (3x4) The TPS25940 is a compact, feature-rich eFuse (electronic fuse) power switch from Texas Instruments designed to provide advanced power-path protection and management for SSDs, storage systems, servers, telecom equipment, and other DC-powered applications. It integrates back-to-back MOSFETs for true reverse-current blocking, programmable current limiting, overvoltage/undervoltage protection, and controlled output slew-rate management in a small 20-pin WQFN package. Key Features Wide operating voltage range: 2.7 V to 18 V (20 V maximum input) Low 42 mΩ typical on-resistance (RDS(on)) Adjustable current limit from 0.6 A to 5.3 A True reverse-current blocking using integrated back-to-back FETs Fast reverse-voltage shutdown response of 1 µs Programmable output ramp-up (dV/dt control) for inrush-current management Programmable overvoltage (OVP) and undervoltage (UVP) protection thresholds Integrated IMON analog current-monitor output PGOOD and FLT status outputs for system monitoring Low-power DevSleep™ mode for SATA SSD applications Typical operating quiescent current of 200 µA Typical disabled current of 15 µA Operating junction temperature range from −40°C to +125°C UL 2367 recognized and designed for fault-safe operation under single-point failure conditions. Typical Applications PCIe, SATA, and SAS SSD/HDD storage devices Enterprise servers and storage systems RAID controller cards with holdup-power management Telecom switches and routers Set-top boxes, DTVs, and gaming consoles Adapter-powered equipment General-purpose smart load-switch and power-protection circuits. Package Information Package: 20-pin WQFN (RVC) Temperature range: −40°C to +85°C ambient operation Tape-and-reel packaging for automated assembly. #CommonPartsLibrary #IntegratedCircuit # TPS25940

Charger IC Lithium Ion 16-VQFN (3x3) The BQ24075QRGTRQ1 is an automotive-qualified standalone linear battery charger and power-path management integrated circuit designed for single-cell Li-Ion and Li-Polymer battery applications. The device integrates battery charging, system power regulation, input current limiting, and dynamic power-path management into a compact solution optimized for portable and embedded automotive systems. The charger supports USB and external adapter power sources while automatically managing system load distribution between the input supply and battery. Integrated thermal regulation and safety protection features improve reliability under varying operating conditions and harsh automotive environments. The BQ24075QRGTRQ1 supports programmable charging parameters, battery temperature monitoring, and power-good status reporting. The device is qualified for automotive applications and is suitable for infotainment systems, telematics, portable instrumentation, embedded battery-powered modules, and industrial handheld equipment. Key Features Automotive-qualified battery charger IC Single-cell Li-Ion and Li-Polymer battery support Integrated dynamic power-path management USB and adapter input compatibility Programmable fast-charge current control Integrated thermal regulation Input current limiting capability Battery temperature monitoring support Automatic charge termination functionality Short-circuit and over-temperature protection Power-good and charging status indication Compact surface-mount package Optimized for portable and embedded applications Electrical Characteristics Linear charging architecture High integration power management solution Dynamic load sharing between system and battery Stable regulated system output Programmable charging voltage and current Thermal foldback protection operation Low standby and shutdown current consumption Integrated safety timer functionality Wide input operating voltage range Applications Automotive infotainment systems Portable embedded electronics Industrial handheld equipment Battery-powered control modules Telematics systems USB-powered charging systems Portable instrumentation Data logging devices Embedded IoT products Rechargeable battery management systems Package Information Package Type: VQFN Mounting Type: Surface Mount Automotive-grade integrated circuit package RoHS compliant configuration available #commonpartslibrary #integratedcircuit #batterycharger #powermanagement #automotiveelectronics #lithiumbattery #embeddedhardware #usbcharging #portableelectronics #powerpathmanagement

MOSFET P-CH 30V 4.1A SOT-23 The AO3401 is a 30 V P-Channel Enhancement Mode MOSFET designed for high-efficiency power switching applications. It uses advanced trench MOSFET technology to achieve low on-resistance (RDS(on)), low gate charge, and fast switching performance. Packaged in a compact SOT-23 package, it is widely used in load switching, battery-powered devices, reverse-polarity protection circuits, and power management applications. Key Features P-Channel MOSFET Drain-Source Voltage (VDS): −30 V Continuous Drain Current (ID): up to −4 A (25°C) Low RDS(on): 50 mΩ max @ VGS = −10 V 60 mΩ max @ VGS = −4.5 V 85 mΩ max @ VGS = −2.5 V Low Gate Charge: 7 nC typical @ 4.5 V Gate-Source Voltage Rating: ±12 V Low Threshold Voltage: −0.5 V to −1.3 V Fast Switching Characteristics Compact SOT-23 Surface-Mount Package Operating Junction Temperature: up to 150°C Suitable for Low-Voltage Logic-Level Drive Applications Typical Applications Load switches Battery protection circuits Reverse-polarity protection Power-path management DC-DC converters Portable and battery-powered electronics PWM switching applications #CommonPartsLibrary #Transistor #FET #Mosfet

OR Controller N+1 ORing Controller N-Channel 1:1 24-VQFN (4x4) The LM74930-Q1 ideal diode controller drives and controls external back to back N-Channel MOSFETs to emulate an ideal diode rectifier and power path ON and OFF control with over current and overvoltage protection. The wide input supply of 4 V to 65 V allows protection and control of 12-V and 24-V automotive battery powered ECUs. The device can withstand and protect the loads from negative supply voltages down to –65 V. An integrated high side gate control (HGATE) drives the first MOSFET in the power path. The device allows load disconnect (ON and OFF control) in case of overcurrent, overvoltage and undervoltage event using HGATE control while ideal diode controller (DGATE) drives a second MOSFET to replace a Schottky diode for input reverse polarity protection and output voltage holdup by blocking the reverse current from output to input. The device has integrated current sense amplifier which provides with an adjustable overcurrent and short circuit protection with circuit breaker functionality. The device features an adjustable overvoltage and undervoltage protection feature to protect against supply transients. LM74930-Q1 features MODE pin which can be used to selectively enable or disable reverse current blocking functionality. Features • AEC-Q100 qualified for automotive applications – Device temperature grade 1: –40°C to +125°C ambient operating temperature range • 4-V to 65-V input range • Reverse input protection down to –65 V • Drives external back-to-back N-Channel MOSFETs in common source configuration • Ideal diode operation with 10.5-mV A to C forward voltage drop regulation • Low reverse detection threshold (–10.5 mV) with fast DGATE turn-off response (0.5 µs) • 18-mA peak gate (DGATE) turn on current • 2.6-A peak DGATE turn-off current • Adjustable overcurrent and short circuit protection • Analog current monitor output with 10% accuracy (IMON) • Adjustable overvoltage and undervoltage protection • Low 2.5-μA shutdown current (EN=Low) • MODE pin to allow bi-directional current flow (MODE=Low) • Meets automotive ISO7637 transient requirements with a suitable TVS diode • Available in space saving 24-pin VQFN package 2 Applications • 12-V / 24-V automotive reverse battery protection • Industrial transport • Redundant power supply ORing #IdealDiodeController #SurgeStopper #CircuitBreaker #PowerPathProtection #AutomotiveElectronics #AECQ100 #ReversePolarityProtection #OvercurrentProtection #TexasInstruments #PMIC

OR Controller P-Channel 1:1 SC-70-6 Ideal diode that provides reverse polarity protection and power path ORing with a low forward voltage drop. The Texas Instruments LM66100-Q1 operates from 1.5 V to 5.5 V, supports up to 1 A continuous current, features an 11 mΩ (typical) integrated MOSFET, includes reverse current blocking, overvoltage protection up to 6 V, and is offered in a 6-pin SC70 (DCK) package. #IdealDiode #PowerPathProtection #ReverseCurrentBlocking #ReversePolarityProtection #PowerORing #Automotive #TexasInstruments #LM66100Q1 #SC70 #1A #15Vto55V

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

BQ25798RQMR QFN-29_L4.0-W4.0-P0.40-TL-BQ25792RQMR LCSC Part Number: C2876593 JLCPCB Part Class: Extended Part Manufactured by TI(德州仪器) Texas Instruments BQ25798 fully integrated switch-mode buck-boost battery charger for 1-4 cell Li-ion and Li-polymer batteries, supports USB PD 3.0 power profile, integrates four switching MOSFETs, BATFET, input and charging current sensing, 3.6V to 24V input operating range with 30V absolute maximum, 750kHz or 1.5MHz switching frequency, up to 5A charging current with 10mA resolution, up to 96.5% efficiency, supports MPPT for photovoltaic charging, USB BC1.2/HVDCP/non-standard adapter detection, NVDC power path management, USB OTG output from 2.8V to 22V up to 3.32A, I2C control, integrated 16-bit ADC, low quiescent current, thermal regulation, OVP/OCP protection, safety timer, 29-pin 4x4mm QFN package. Search Keywords: BQ25798, Texas Instruments BQ25798, TI BQ25798, BQ25798 battery charger, BQ25798 buck boost charger, BQ25798 Li-ion charger, BQ25798 Li-polymer charger, 1-4 cell battery charger, USB PD 3.0 battery charger, buck boost charger IC, NVDC power path charger, MPPT battery charger IC, photovoltaic battery charger, USB OTG charger IC, 5A charging current charger, I2C battery charger, BQ25798 QFN-29, 4x4mm QFN charger, BQ25798 datasheet Hashtags: #BQ25798 #TexasInstrumentsBQ25798 #TIBatteryCharger #BatteryChargerIC #BuckBoostCharger #LiIonCharger #LiPolymerCharger #1to4CellCharger #USBPDCharger #USBPD30 #NVDCCharger #PowerPathManagement #MPPTCharger #PhotovoltaicCharger #USBOTGCharger #5ACharger #I2CCharger #IntegratedADC #QFN29 #4x4mmQFN

Battery Management ICs BQ25120AYFPT DSBGA-25_L2.6-W2.5-R5-C5-P0.40-BL LCSC Part Number: C2861317 JLCPCB Part Class: Extended Part Manufactured by TI(德州仪器) Texas Instruments bq25120A highly integrated low-Iq battery charge management IC for wearables and IoT devices, supports up to 300mA battery charge current, configurable 300mA buck regulator with 1.8V default output, configurable load switch or 100mA LDO output, power path management, battery voltage regulation from 3.6V to 4.65V in 10mV steps, configurable termination current down to 500µA, simple voltage-based battery monitor, push-button wake-up and reset, I2C control interface, 3.4V to 5.5V input voltage range, low quiescent current, suitable for smart watches, fitness accessories, medical wearables and rechargeable toys, 25-ball DSBGA 2.5 x 2.5mm package. Search Keywords: bq25120A, Texas Instruments bq25120A, TI bq25120A, BQ25120A battery charger, bq25120A PMIC, bq25120A wearable charger, bq25120A IoT charger, low Iq battery charger IC, integrated battery charge management IC, 300mA battery charger, power path battery charger, I2C battery charger, bq25120A buck regulator, bq25120A LDO, bq25120A DSBGA-25, bq25120A 2.5x2.5mm, bq25120A datasheet Hashtags: #bq25120A #BQ25120A #TexasInstrumentsBQ25120A #TIBatteryCharger #BatteryChargerIC #BatteryChargeManagement #WearablePMIC #IoTPMIC #LowIqCharger #PowerPathManagement #300mACharger #BuckRegulatorPMIC #I2CCharger #LiIonCharger #WearableCharger #DSBGA25 #25BallDSBGA