STMicroelectronics L9962
The L9962 is part of a complete battery pack monitoring, balancing, and protection system for Li-Ion and LiPolymer cells in 4-10 series configurations. The L9962 uses a high precision ADC to provide cell voltage, stack voltage and temperature conversion via external NTC. The L9962 also implements battery pack fuse protection to prevent fire and explosion hazards.| Part No. | L9962 |
|---|---|
| Datasheet | L9962 Download |
| Manufacturer |  STMicroelectronics |
| Description | Battery management system |
| Buy | Stock & Price |
FEATURES
● 2 μA SHIPMENT - DEEP SLEEP mode current and 2.5 μA standby consumption (with VREG LDO active)● Integrated 3.3 V VREG LDO for supplying MCU and LEDs
● Measures cell voltage (4 to 10 cells), with over-/undervoltage detection as well as balance undervoltage protection
● 12-bit voltage measurement with maximum error of ±7.5 mV in the [1.5 – 4.5] V range, for -40 °C < TJ < 105 °C
● Measures stack voltage, with over/under voltage detection and plausibility check vs. sum of cells
● Measures pack temperature via NTC, with over-/undertemperature detection
● Ratiometric temperature measurement with ±0.8% max. gain error in the [0.2 – VREG] V range, for -40 °C < TJ < 105 °C
● Measures battery current, with Coulomb counting, overcurrent (both directions) and short-circuit in discharge protection.
● 16-bit signed current measurement with a maximum error of 0.25%, for -40 °C < TJ < 120 °C after customer end of line calibration with a single point
● I2C peripheral for device programming a...
