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L9961 Datasheet(PDF) 1 Page - STMicroelectronics |
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L9961 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 65 page  VFQFPN32 (5x5x1.00 mm) 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 Product status link L9961 Product label Product summary Order code Package Packing L9961 VFQFPN32 Tube L9961-TR Tape and Reel Battery management system solution L9961 Datasheet DS14012 - Rev 3 - January 2023 For further information contact your local STMicroelectronics sales office. www.st.com |
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