Texas Instruments has introduced a highly integrated battery management solution to provide the best battery life while reducing power consumption, and uses a 1.8V step-down converter to provide the industry's lowest quiescent current (Iq). 700nA.
The bq25120 has all the functions of a linear charger, configurable LDO, load switch, buck converter, button control and battery voltage monitor. The solution supports 3.6V to 4.65V batteries and fast charging currents from 5mA to 300mA, so that wearables and Industrial Internet of Things (IoT) applications are always on without draining the battery.
Features: 1-700nA minimum quiescent current: bq25120 uses power path technology and a low Iq buck converter to keep 1.8V operation always on. A host microprocessor (such as a TI host microprocessor) or a Bluetooth radio (such as TI's SimpleLink Bluetooth Smart CC2640 wireless MCU) can continue to operate during charging by not extracting "empty energy". The solution's standby mode quiescent current is 50nA, so designers can also achieve the longest battery shelf life. 2-Highly integrated: Configurable load switch / LDO output optimizes system by minimizing battery consumption by turning off rarely used functions such as radio and display. The solution also includes an integrated battery voltage monitor that enables charging status indicators, step-down converters, and button controls. 3-The industry's smallest battery management solution: The 2.5mm x 2.5mm WCSP package's small footprint makes it easier for designers to integrate it into stylish wearable designs. For a more robust solution, designers can include the CC2640 wireless MCU as it is the industry's smallest QFN packaging solution with integrated Flash for Bluetooth Smart. 4-Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. 2.5mm x 2. The small footprint of the 5mm WCSP package makes it easier for designers to integrate it into stylish wearable designs. For a more robust solution, designers can include the CC2640 wireless MCU as it is the industry's smallest QFN packaging solution with integrated Flash for Bluetooth Smart. 4-Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. 2.5mm x 2. The small footprint of the 5mm WCSP package makes it easier for designers to integrate it into stylish wearable designs. For a more robust solution, designers can include the CC2640 wireless MCU as it is the industry's smallest QFN packaging solution with integrated Flash for Bluetooth Smart. 4-Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. The small footprint of the 5mm WCSP package makes it easier for designers to integrate it into stylish wearable designs. For a more robust solution, designers can include the CC2640 wireless MCU as it is the industry's smallest QFN packaging solution with integrated Flash for Bluetooth Smart. 4-Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. The small footprint of the 5mm WCSP package makes it easier for designers to integrate it into stylish wearable designs. For a more robust solution, designers can include the CC2640 wireless MCU as it is the industry's smallest QFN packaging solution with integrated Flash for Bluetooth Smart. 4-Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5 – User Flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. For a more robust solution, designers can include the CC2640 wireless MCU as it is the industry's smallest QFN packaging solution with integrated Flash for Bluetooth Smart. 4-Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. For a more robust solution, designers can include the CC2640 wireless MCU as it is the industry's smallest QFN packaging solution with integrated Flash for Bluetooth Smart. 4-Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. – Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. For a more robust solution, designers can include the CC2640 wireless MCU as it is the industry's smallest QFN packaging solution with integrated Flash for Bluetooth Smart. 4-Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. – Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. For a more robust solution, designers can include the CC2640 wireless MCU as it is the industry's smallest QFN packaging solution with integrated Flash for Bluetooth Smart. 4-Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. – Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. – Accurate charge termination, as low as 500µA: This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more stable full charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more. This feature maximizes the energy delivered to the battery before completing the charge cycle, allowing the battery to absorb a more powerful charge. 5-User flexibility: The bq25120's I2C programming interface enables designers to set key parameters including battery charger voltage, current, termination threshold, input current limit, load switch control, flexible timer and reset options, and more.
The bq25120 can be used in conjunction with the device to integrate more end-application functions. The TPS62743 is an ultra-low Iq buck converter that can be used for additional buck outputs. Boost converters can also be used for display integration. The TPS61046 provides 12V boost and the TPS61240 has a load connection to provide 5V boost for a heart rate monitor or small display.
The bq25120 evaluation module (EVM) allows users to speed up time to market by quickly and easily evaluating device features and performance.
