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L9961 - Battery management system solution

Description

L9961 is part of a complete battery pack monitoring, balancing, and protecting system for Li-Ion and Li-Polymer cells in 3, 4 or 5 series configurations.

The L9961 uses a high precision ADC to provide cell voltage, stack voltage and temperature conversion via external NTC.

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/unde.

📥 Download Datasheet

Datasheet preview – L9961

Datasheet Details

Part number L9961
Manufacturer STMicroelectronics
File Size 1.76 MB
Description Battery management system solution
Datasheet download datasheet L9961 Datasheet
Additional preview pages of the L9961 datasheet.

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Full PDF Text Transcription

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L9961 Datasheet Battery management system solution VFQFPN32 (5x5x1.00 mm) Product status link L9961 Product label Product summary Order code Package Packing L9961-TR VFQFPN32 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.
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