L9961中文資料意法半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書

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 electric vehicles (e-bikes, scooters, etc)

? Portable and semi-portable equipment

? Medical equipment