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

60V High-Side Current-Sense Amplifier with 50V/V Gain AEC-Q100 Qualified #ultralibrarian

3W 10mΩ Patch Current Sensing Resistors ±1% 2512 Current Sense Resistors / Shunt Resistors The HoJLR2512-3W-10mR-1% is a surface-mount current-sense (shunt) resistor manufactured by Milliohm Electronics. It features an ultra-low resistance value of 10 mΩ (0.01 Ω) in a 2512 package and is designed for high-current applications where accurate current measurement and low power loss are required. The resistor uses a metal element construction, providing excellent stability, low inductance, and reliable performance in power management, battery monitoring, motor control, and DC-DC converter applications. Key Features Resistance: 10 mΩ (0.01 Ω) Tolerance: ±1% for accurate current sensing Power Rating: 3 W Package Size: 2512 (6.4 mm × 3.2 mm) SMD package Metal Element Construction for low resistance drift and high reliability Current Sense Optimized for power monitoring and overcurrent protection circuits Non-Inductive Design suitable for high-frequency switching applications Moisture Resistant construction for improved environmental robustness Temperature Coefficient: ±50 ppm/°C typical Operating Temperature Range: −50°C to +170°C RoHS Compliant Typical Applications Battery management systems (BMS) Power supplies and DC-DC converters Motor control and drive systems Current monitoring circuits Overcurrent protection circuits Industrial and automotive electronics (where qualification requirements permit) #CommonPartsLibrary #Resistor