L9961

L9961 Datasheet Battery management system solution VFQFPN32 (5x5x1.00 mm) Product status link L9961 Product label Product summary Order code Package Packing L9961 L9961-TR VFQFPN32 Tube Tape and Reel Features 2 μA shipment - DEEP SLEEP mode current and 5 μA standby consumption (with VREG LDO active) standby consumption (with VREG LDO active) Integrated 3.3 V VREG LDO for supplying MCU and LEDs Measures cell voltage (3 to 5 cells), with over/undervoltage detection and balance undervoltage protection 12-bit voltage measurement with maximum error of ±15 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 0.1% full scale error at room temperature I2C peripheral for device programming and data transfers over I2C bus Cell balancing supporting up to 70 mA per cell Dual configurable HS/LS predriver for pack relay management Pack fuse management Embedded NVM for configuration parameters storage High hotplug robustness Applications Cordless power tools Backup energy storage systems and UPS Light electr...