Power management

Battery management – Featured products

<8V (1-2 cell battery applications) 

Our specializes in fast and cool charging, supports safer operations, and higher accuracy for space-constrained low power applications such as video doorbells, ultrasound scanners, portable POS, and medical. We offer chargers with high power density and low stand-by and ship mode Iq, gauges with
a patented algorithm, and protection devices. 

medical-glucose-meter

BQ25155

500-mA 1-cell linear charger with 10-nA Iq, power path, 16-bit ADC and LDO

BQ25619

I2C 1.5-A 1-cell buck battery charger with 20-mA termination and 1-A boost

BQ27Z561

Impedance Track™ integrated circuit gas gauge solution for 1-series

BQ2980

High side protector for single-cell Li-Ion and Li-polymer batteries

12 - 32V (3-8 cell battery applications)

Our gauges, created with a patented algorithm, offer the highest accuracy reporting of SoC and SoH. Our chargers, with low stand-by Iq, minimize current draw in battery-only mode maximizing battery run time which works best for applications such as vacuum robots, power tools, and more. 

power-tool

BQ25713

2 to 4 series NVDC I2C battery buck-boost charge controller with system power monitor & processor hot monitor

BQ40Z80

2-series to 7-series battery pack manager with gas gauging Impedance Track™ technology

BQ76925

Analog front end for 3 to 6 series lithium-ion cells

BQ77915

3-series to 5-series stackable ultra-low-power primary protector with autonomous cell balancing

36V – 54V (9 – 16 cell battery applications) 

Our monitors offer accurate measurement of V, I and T, and robust communication of that information back to the controller which helps you create industrial solutions such as e-bikes, garden tools, power tools, and 48-V battery management systems for HEV/EV. Integrated and second level protection supports safer operation of the battery. 

power-tool

BQ75614-Q1

16-series automotive precision battery monitor and balancer with current sensing and up to ISO26262 ASIL-D compliant

BQ76930

6 to 10-series cell li-ion and li-phosphate battery monitor

BQ76940

9 to 15-series cell li-ion and li-phosphate battery monitor (bq76940 family)

BQ77915

3-series to 5-series stackable ultra-low-power primary protector with autonomous cell balancing

>60V (higher than 16-cell battery applications) 

Our battery monitors allow you to accurately calculate the available capacity for drivers to go even further than before. While you work to meet your functional safety goals up to ISO26262 ASIL-D, our devices give you the information to properly diagnose and confirm the safe state of your 3-S to 300-S battery packs for HEV/EV applications.

HEV/EV-car-charging

BQ79616-Q1

16-S automotive stackable precision battery monitor and balancer with integrated protection and up to ASIL-D compliant

BQ79606A-Q1

6-S automotive stackable precision battery monitor and balancer with integrated protection and up to ASIL-D compliant