Battery Management ICs

Buck-Boost Switching Regulator IC Positive Adjustable 2.5V 1 Output 2A 15-PowerVFQFN The TPS63070RNMT is a high-efficiency buck-boost DC-to-DC converter manufactured by Texas Instruments. This power management integrated circuit is designed to provide a stable regulated output voltage from input sources that may be above, below, or equal to the desired output voltage. The device automatically transitions between buck and boost operating modes to maintain efficient and continuous power delivery across varying supply conditions. The converter integrates low-resistance power MOSFETs and advanced control circuitry to achieve high conversion efficiency, low quiescent current, and compact implementation. It is widely used in battery-powered systems, portable electronics, embedded devices, industrial control systems, wireless communication equipment, and USB-powered applications requiring stable voltage regulation from fluctuating power sources. The TPS63070RNMT is optimized for applications demanding high power density, extended battery life, and reliable operation under dynamic load conditions. Its compact package and integrated functionality reduce external component count and simplify PCB design for modern power management architectures. Engineering Specification Device Type Synchronous buck-boost DC-to-DC converter Power Topology Automatic buck and boost mode operation Input Voltage Characteristics Supports input voltages above, below, or equal to output voltage Output Characteristics Regulated fixed or adjustable DC voltage output Switching Technology Integrated synchronous power MOSFET architecture Efficiency Characteristics High-efficiency power conversion across wide operating conditions Control Architecture Advanced PWM/PFM power regulation control Current Capability Designed for medium-to-high current portable power applications Quiescent Current Low standby current for battery-powered operation Thermal Characteristics Integrated thermal protection and efficient heat management Protection Features Overcurrent protection Thermal shutdown Undervoltage lockout Short-circuit protection Package Type VQFN surface-mount package Mounting Style Surface mount technology Applications Battery-powered electronics Portable devices USB-powered systems Industrial automation Embedded systems Wireless communication equipment IoT devices Portable instrumentation Power banks Single-cell battery applications Manufacturer Texas Instruments #commonpartslibrary #powermanagement #buckboostconverter #dcdcconverter #texasinstruments #powerelectronics #powersupply #embeddedhardware #portableelectronics #batterymanagement #surfaceountcomponents #electronicsdesign #voltageregulator #industrialelectronics #usbpower

HoJLR2512-3W-5mR-1% is a low-resistance current sense resistor designed for high-power current measurement and power monitoring applications in embedded and industrial electronic systems. Constructed using precision metal alloy resistive material, the component provides stable resistance characteristics, low temperature coefficient, and high current handling capability for accurate current sensing under demanding operating conditions. This resistor is optimized for use in power management circuits, battery monitoring systems, motor control applications, DC-DC converters, automotive electronics, and industrial power distribution platforms. Its low resistance value minimizes power loss while enabling precise current measurement when used with amplifiers, ADCs, or dedicated current sensing circuitry. The HoJLR2512-3W-5mR-1% features a compact surface-mount package suitable for automated PCB assembly and high-density layouts. Its robust thermal performance and precision tolerance characteristics make it suitable for high-efficiency power systems requiring reliable current monitoring and overload detection functionality. #commonpartslibrary #currentsenseresistor #shuntresistor #powermanagement #passivecomponents #embeddedhardware #powersupply #industrialelectronics #surfacemountdevice #electronicscomponents

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

The YFW AO3400 is a 30V N-Channel Enhancement MOSFET designed for low-voltage and high-speed switching applications. It uses advanced trench MOSFET technology to achieve low on-resistance (RDS(on)), fast switching performance, and efficient power handling in a compact SOT-23 package. It is commonly used in load switching, DC-DC converters, battery-powered devices, motor control, LED driving, and PWM switching circuits. Key Features N-Channel Enhancement Mode MOSFET Drain-Source Voltage (VDS): 30V Continuous Drain Current (ID): up to 5.8A Low RDS(on): < 28mΩ @ VGS = 10V < 33mΩ @ VGS = 4.5V < 52mΩ @ VGS = 2.5V Logic-Level Gate Drive Compatible Fast Switching Speed Low Gate Charge Compact SOT-23 Package Suitable for PWM and Load Switch Applications RoHS / Pb-Free Compatible Typical Applications Power switching DC-DC converters Battery management systems Motor and fan control LED drivers Portable electronics Microcontroller-based switching circuits #CommonPartsLibrary #Transistor #FET #Mosfet

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

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

Charger IC Lithium Ion 49-WLP (3.46x3.46) The MAX77962 is a high-performance wide-input 3.2A buck-boost charger with a Smart Power Selector™ and operates as a reverse buck without an additional inductor, allowing the IC to power USB On-the-Go (OTG) accessories. The device integrates low-loss power switches, and provides small solution size, high efficiency, low heat, and fast battery charging. The reverse buck has true-load disconnect and is protected by an adjustable output current limit. The device is highly flexible and programmable through I2C configuration or autonomously through resistor configuration. The battery charger includes a Smart Power Selector to accommodate a wide range of battery sizes and system loads. The Smart Power Selector allows the system to start up gracefully when an input source is available even when the battery is deeply discharged (dead battery) or missing. For battery safety/authentication reasons, the IC can be configured to keep charging disabled, and allow the DC-DC to switch and regulate the SYS voltage. The system processor can later enable charging using the appropriate I2C commands. Alternatively, the IC can be configured to automatically start charging. ● 3.5V to 23V Input Operating Range, 30VDC Withstand Voltage ● 97% Peak Efficiency at 9VIN/7.4VOUT/1.5AOUT ● Reverse Leakage Protection ● 50mA to 3.15A Programmable Input Current Limit ● 50mA to 3.2A Programmable Constant Current Charge ● Remote Differential Voltage Sensing ● 600kHz or 1.2MHz Switching Frequency Options ● System Instant On with Smart Power Selector PowerPath ● Charge Safety Timer ● Die Temperature Regulation with Thermal Foldback Loop ● Input Power Management with Adaptive Input Current Limit (AICL) and Input Voltage Regulation ● 10mΩ BATT to SYS Switch, Up to 10A Overcurrent Threshold ● Reverse Buck Mode 5.1V/1.5A to Support USB OTG ● JEITA Compliant with NTC Thermistor Monitor ● I 2C or Resistor Programmable ● 3.458mm x 3.458mm 49-Bump WLP #CommonPartsLibrary #IntegratedCircuit #PowerManagement #MAX77962

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

Current Sense Amplifier 1 Circuit Single-Ended SOT-23-6 The INA187A3IDBVR is a precision high-side and low-side current sense amplifier designed for accurate bidirectional current measurement in power management, motor control, battery monitoring, and industrial sensing applications. The device integrates a matched precision gain stage optimized for shunt resistor voltage amplification while maintaining excellent common-mode rejection and low offset drift. It supports wide common-mode input voltages, enabling current monitoring across supply rails in automotive, industrial, and embedded systems. The amplifier features fast response characteristics, low quiescent current consumption, and a compact surface-mount package suitable for space-constrained designs. Engineering Specification Device Type Precision Current Sense Amplifier Manufacturer Texas Instruments Manufacturer Part Number INA187A3IDBVR Amplifier Configuration Current shunt monitor with fixed gain Gain Variant High fixed gain configuration optimized for low-value shunt resistor sensing Input Measurement Capability Bidirectional current sensing Common-Mode Voltage Range Supports high-side and low-side sensing across wide supply rails Input Offset Characteristics Low offset voltage with low temperature drift for accurate current measurement Bandwidth Performance Wide bandwidth suitable for dynamic load and transient current monitoring Response Time Fast settling and propagation performance for real-time current feedback systems Power Supply Requirements Single-supply operation compatible with low-voltage logic systems Output Type Analog voltage output proportional to sensed shunt voltage Common-Mode Rejection High common-mode rejection ratio for stable operation in noisy environments Temperature Performance Industrial operating temperature range with stable gain accuracy over temperature Protection Features Robust input structure designed for high common-mode environments Package Type SOT-23 surface-mount package Mounting Method Surface mount technology Typical Applications Battery management systems, power distribution monitoring, motor current feedback, DC/DC converter monitoring, industrial automation, telecom power systems, and embedded power diagnostics. #commonpartslibrary #integratedcircuit #currentsenseamplifier