Battery Management ICs
A Battery Management IC is a specialized microcontroller that monitors and manages the charging and discharging of a lithium-ion or other type of battery. These ICs are essential for ensuring the safe and efficient operation of batteries in a wide range of applications, including portable electronics, electric vehicles, and renewable energy systems. One of the key functions of a Battery Management IC is to optimize the charging and discharging of a battery by controlling the flow of current. This can help to extend the life of the battery and improve its overall performance. In addition to controlling the charging and discharging of a battery, a Battery Management IC can also perform other functions such as monitoring the temperature and voltage of the battery, protecting the battery from overcharge and overdischarge, and providing diagnostic information about the battery's health. Flux.ai has the world's largest community-driven public library of Battery Management ICs, with footprints, symbols, datasheets, and simulation models available for use. Whether you are a designer, engineer, or researcher, the Flux.ai library is an invaluable resource for finding the right Battery Management IC for your project.
MAX77962EWJ12+T
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
0 Uses0 StarsBQ41Z50RSNR
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
0 Uses0 StarsINA187A3IDBVR
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
12 Uses0 StarsINA229AIDGST
Current Monitor Regulator High-Side 10mA 10-VSSOP The INA229AIDGST is a high-precision digital power monitor designed for accurate measurement of shunt voltage, bus voltage, current, power, energy, and charge in low- and high-side sensing applications. The device integrates a low-offset delta-sigma analog-to-digital converter with programmable calibration and alert functionality, enabling precise system-level power monitoring in industrial, automotive, telecommunications, server, and battery-powered applications. The device communicates through a high-speed I²C- and SMBus-compatible serial interface and supports wide common-mode voltage operation for flexible integration into multi-rail power systems. Internal computation engines provide direct digital reporting of current, power, accumulated energy, and charge values, minimizing host processor overhead. The INA229AIDGST includes programmable conversion timing, averaging modes, alert outputs, and diagnostic monitoring features to support advanced power management and protection architectures. Its low input offset and high measurement accuracy make it suitable for precision instrumentation, energy metering, and power optimization systems. Key Features High-accuracy current, voltage, power, energy, and charge monitoring Supports both high-side and low-side current sensing architectures Wide common-mode input voltage range Integrated precision delta-sigma ADC architecture Direct digital calculation of power, energy, and accumulated charge Programmable calibration and averaging configuration I²C- and SMBus-compatible communication interface Configurable alert and fault monitoring output Low offset voltage and low gain error for precision measurements Programmable conversion time and operating modes Integrated temperature measurement support Suitable for industrial, enterprise, automotive, and battery-powered systems Electrical Characteristics Precision shunt voltage measurement capability High-resolution bus voltage monitoring Integrated current and power computation engine Low quiescent current operation Wide supply voltage operating range High common-mode transient immunity Low measurement drift over temperature Interface and Control I²C-compatible serial interface SMBus compatible operation Programmable device addressing Configurable alert pin functionality Internal register-based configuration and diagnostics Package Information Package Type: VSSOP Package Variant: DSG Surface-mount package configuration Thermally optimized compact footprint suitable for dense PCB layouts Typical Applications Power supply monitoring Battery management systems Industrial automation equipment Telecom infrastructure Server and data center power management Embedded system power analytics Energy monitoring and metering DC motor and actuator monitoring #commonpartslibrary #integratedcircuit #powermanagement #powersupplycontroller
1 Uses0 StarsINA228AIDGSR
Power Supply Controller Digital Power Monitor 10-VSSOP The INA228AIDGSR is a high-precision digital power monitor and current-sense amplifier designed for accurate measurement of shunt voltage, bus voltage, current, power, energy, and charge in DC power systems. The device integrates a low-offset differential amplifier with high-resolution analog-to-digital converters and supports bidirectional current sensing across a wide common-mode voltage range. Communication is provided through an I²C- and SMBus-compatible digital interface, enabling direct telemetry integration into embedded control and battery management systems. The device is optimized for high-accuracy power monitoring applications requiring low drift, low offset, and high dynamic range. Integrated mathematical computation functions reduce host processor overhead by internally calculating current, power, accumulated energy, and charge values. Programmable conversion timing and averaging modes allow optimization between measurement speed and noise performance. The INA228AIDGSR is suitable for server power distribution, industrial automation, telecom infrastructure, automotive subsystems, battery-powered equipment, and precision instrumentation requiring real-time power analytics and fault monitoring. Engineering Specification Device Type Digital power monitor with integrated current-sense amplifier and high-resolution ADC. Measurement Functions Supports measurement of: Differential shunt voltage Bus voltage Current Power Energy accumulation Charge accumulation Temperature through external sensing methods Current Sensing Supports bidirectional current measurements using an external shunt resistor with programmable calibration scaling. ADC Architecture Incorporates high-resolution delta-sigma analog-to-digital converters with programmable conversion time and averaging configuration. Interface Uses I²C- and SMBus-compatible serial communication interface with programmable device addressing. Voltage Monitoring Supports high-side and low-side sensing across a wide common-mode input voltage range suitable for multi-rail power systems. Accuracy Features Includes: Low input offset voltage Low offset drift Precision gain architecture High measurement linearity Integrated calibration engine Power Computation Internally computes: Instantaneous power Average power Energy accumulation over time Charge accumulation over time Alert and Protection Features Provides programmable alert functionality for: Overcurrent Undervoltage Overvoltage Power threshold violations Conversion-ready indication Operating Modes Supports: Continuous conversion mode Triggered conversion mode Low-power shutdown mode Package Information Supplied in a compact VSSOP surface-mount package suitable for automated PCB assembly and space-constrained applications. Temperature Range Designed for operation across industrial temperature environments suitable for embedded and power-management systems. Typical Applications Battery management systems Power supply monitoring Server and telecom power rails Industrial control systems DC energy metering Embedded power analytics Automotive electronics Portable instrumentation #commonpartslibrary #integratedcircuit #powermanagement #powersupplycontroller
53 Uses0 StarsMAX77960EFV06+
- Converter, Battery Powered Devices Voltage Regulator IC 1 Output 30-FC2QFN (4x4) The MAX77960EFV06+ is a fully integrated switching charger and power management IC that supports both step-up (boost) and step-down (buck) operation, making it suitable for USB-C PD applications where input voltage can be higher or lower than the battery voltage. It includes an internal Smart Power Selector™, which intelligently manages power flow between the input source, battery, and system load, enabling smooth system startup even with deeply discharged batteries. This device is widely used in portable electronics, battery-powered systems, drones, cameras, and USB-C PD devices requiring high power efficiency and compact design. Key Features Power & Electrical Specs Input voltage range: 3.5 V to 25.4 V High-efficiency buck-boost operation (up to ~97% peak efficiency) Programmable charging current: 100 mA to 3.15 A (MAX77960 version) Supports 2-cell and 3-cell Li-ion battery charging #CommonPartsLibrary #IntegratedCircuit #PowerManagement
0 Uses0 StarsLM51772RHAR
Buck-Boost Regulator Positive Output Step-Up/Step-Down I2C DC-DC Controller IC 40-VQFN (6x6) The LM51772RHAR is a high-performance multi-phase bidirectional buck-boost controller designed for power conversion systems requiring efficient energy transfer between two voltage domains. The device supports seamless operation in both step-up and step-down modes and is optimized for battery-powered, automotive, industrial, and energy storage applications. The controller enables bidirectional current flow, making it suitable for battery charging, backup power systems, supercapacitor management, and high-power USB Type-C power delivery applications. The device integrates advanced control architecture for high efficiency across a wide operating range while supporting programmable current regulation, voltage regulation, and protection features. Multi-phase capability allows reduced input and output ripple currents, improved thermal distribution, and higher overall power capability. The controller supports external MOSFETs for scalable power design flexibility and includes comprehensive monitoring and fault management functions. The LM51772RHAR is designed for operation in demanding environments with robust protection features including overvoltage protection, undervoltage lockout, cycle-by-cycle current limiting, thermal shutdown, and fault reporting. Its flexible configuration and high integration level reduce external component count and simplify implementation in high-density power systems. Key Features Bidirectional synchronous buck-boost controller architecture Supports power transfer in both forward and reverse directions Multi-phase operation for increased power capability and reduced ripple Wide input and output voltage operating range High-efficiency synchronous control using external MOSFETs Programmable current and voltage regulation Peak and average current control capability Seamless transition between buck, boost, and buck-boost operating modes Integrated current sensing support Programmable switching frequency synchronization Phase interleaving support for thermal and ripple optimization External clock synchronization capability Soft-start and controlled startup sequencing Comprehensive fault detection and protection functions Overcurrent protection and short-circuit protection Overvoltage and undervoltage protection Thermal shutdown protection Fault status reporting and system monitoring support Designed for automotive and industrial power applications Compact thermally enhanced package Typical Applications Bidirectional battery charging systems Energy storage systems Automotive dual-battery architectures USB Type-C Power Delivery systems Backup power and UPS systems Supercapacitor charging and balancing Industrial DC power conversion Renewable energy power management High-power portable electronics Telecom and server power systems Electrical Characteristics Wide operating supply voltage range High switching frequency operation capability High-current multi-phase scalability Precision current regulation accuracy Low standby power consumption High-efficiency synchronous rectification support Programmable dead-time and switching parameters Stable operation across wide temperature range Package Information Package Type: VQFN Package Suffix: RHA Thermally enhanced exposed pad package Surface-mount implementation Suitable for automated assembly processes #commonpartslibrary #integratedcircuit #powermanagement #buckboost #dcdcswitchingcontrollers
22 Uses0 StarsMAX77958EWV+
Mobile Communications PMIC 30-WLP (2.62x3.07) The MAX77958EWV+ is a highly integrated USB Type-C and USB Power Delivery (USB PD) controller designed for portable and battery-powered electronic systems. Manufactured by Analog Devices/Maxim Integrated, the device provides complete USB Type-C Configuration Channel (CC) detection, USB PD protocol management, and power path control functionality within a compact wafer-level package. It is optimized for applications requiring flexible USB charging, power negotiation, and accessory support while minimizing external component count and system complexity. The device integrates a USB Type-C Port Controller (TCPC), Power Delivery Policy Engine, BC1.2 charger detection, VCONN management, dead battery support, and integrated protection features. It supports both sink and dual-role power operation, enabling intelligent power negotiation between connected devices and external power adapters. The controller communicates with the host processor through an I²C interface, allowing firmware-based configuration and monitoring. The MAX77958EWV+ is intended for smartphones, tablets, wearable devices, portable computing platforms, docking stations, embedded systems, and other USB Type-C enabled consumer electronics requiring reliable power delivery and advanced USB connectivity management. Electrical Characteristics The device operates from a low-voltage supply optimized for portable electronic systems. It supports USB Type-C and USB Power Delivery specifications with integrated CC line monitoring and protocol handling. The controller includes internal voltage regulation and protection mechanisms to ensure reliable operation during attachment, detachment, and fault conditions. The integrated USB Power Delivery engine supports multiple power profiles and dynamic voltage negotiation. The device supports sink functionality for charging applications and can be configured for dual-role operation depending on system requirements. Low standby current operation enables efficient battery-powered system implementation while maintaining USB attach detection capability. Functional Features Integrated USB Type-C Port Controller compliant with USB Type-C standards USB Power Delivery protocol engine supporting power negotiation and role management Support for sink and dual-role power configurations Integrated BC1.2 charger detection capability Dead battery support for autonomous attachment detection Integrated VCONN switch and cable orientation detection Automatic CC pin monitoring and cable attach detection I²C interface for host processor communication and configuration Integrated interrupt generation for event handling Support for programmable power profiles and policy management Internal fault monitoring and protection features Compact wafer-level package suitable for space-constrained applications Protection Features Overvoltage monitoring on USB Type-C interface lines Short-circuit protection support Thermal protection and fault detection mechanisms Integrated VCONN current limiting ESD protection for external USB interface connections Safe attach and detach handling during cable insertion events Interface Characteristics USB Type-C CC interface compliant with USB Type-C specifications I²C serial communication interface for host control Interrupt output for event notification Integrated support for orientation detection and cable identification Programmable configuration registers accessible through I²C Package Information Package type is wafer-level package optimized for compact portable designs RoHS compliant and suitable for lead-free manufacturing processes Designed for automated surface-mount assembly Applications Smartphones and mobile devices Tablet computers Wearable electronics Portable battery-powered equipment USB Type-C charging systems Embedded USB PD controllers Docking stations and accessories Consumer electronic products requiring USB Type-C connectivity #commonpartslibrary #integratedcircuit #powermanagement #mobilecommunications
4 Uses0 StarsBQ25302RTER
Charger IC Lithium Ion/Polymer 16-WQFN (3x3) The BQ25302RTER is a highly integrated single-cell lithium-ion and lithium-polymer battery charger and power-path management IC developed by Texas Instruments. The device is optimized for compact portable and wearable applications requiring efficient battery charging from USB or low-voltage DC power sources. It integrates a switching charger, power-path management, system voltage regulation, battery FET, and protection features into a compact package suitable for space-constrained designs. The device supports programmable charging current and voltage regulation while maintaining high power conversion efficiency through its switching charger architecture. Integrated power-path management allows the system load to operate simultaneously while charging the battery, improving system reliability and startup behavior when the battery is deeply discharged or absent. The BQ25302RTER includes input current limiting, thermal regulation, battery temperature monitoring support, and multiple safety timers to ensure safe charging operation. The charger automatically manages preconditioning, fast charging, charge termination, and recharge cycles for lithium-based battery chemistries. The device also supports USB-compliant input operation and includes configurable features through an I2C-compatible interface. Its compact WQFN package and high integration level reduce external component count and PCB area, making it suitable for wearable electronics, portable medical devices, IoT products, handheld instruments, wireless accessories, and battery-powered embedded systems. Electrical Characteristics Input operating voltage supports standard USB and low-voltage DC input sources suitable for portable electronics applications. Supports single-cell lithium-ion and lithium-polymer battery charging with programmable charge voltage regulation. Integrated high-efficiency switching charger architecture minimizes power dissipation and improves thermal performance compared to linear chargers. Programmable fast-charge current supports flexible battery capacity scaling and application-specific charging requirements. Integrated power-path management allows simultaneous battery charging and system power delivery. Includes programmable input current limiting to support USB current compliance and adapter protection. Automatic charge cycle management includes precharge, fast charge, termination, and recharge operation. Supports battery temperature qualification using external thermistor monitoring. Integrated thermal regulation dynamically reduces charge current during high-temperature operating conditions. Low quiescent current operation improves standby battery life in portable products. Protection Features Integrated overvoltage protection for input power safety. Battery overcurrent and short-circuit protection enhance system reliability. Thermal shutdown circuitry protects the device during excessive junction temperature conditions. Safety timers monitor charging duration and prevent abnormal charging operation. Input current limiting protects USB ports and weak power adapters from overload conditions. Undervoltage lockout prevents improper operation during insufficient input supply conditions. Interface and Control I2C-compatible serial interface enables configuration and monitoring of charger parameters. Status reporting supports system-level battery and charging management. Programmable charging parameters allow firmware-controlled optimization for different battery chemistries and capacities. Interrupt and status functions support embedded power management architectures. Package Information Supplied in a compact WQFN package optimized for portable and space-constrained PCB layouts. Package design supports efficient thermal dissipation and automated surface-mount assembly processes. RoHS-compliant and suitable for modern lead-free manufacturing requirements. Typical Applications Wearable electronics Wireless earbuds and audio accessories Portable medical devices IoT and embedded battery-powered systems Handheld consumer electronics Portable instrumentation Rechargeable sensor modules Compact USB-powered battery charging systems #CommonPartsLibrary #IntegratedCircuit #PowerManagement #battery charger
4 Uses0 StarsBQ25730RSNR
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
2 Uses0 Stars
