BQ77915
BQ77915 is 3-Series to 5-Series Stackable Ultra-Low Power Primary Protector manufactured by Texas Instruments.
SLUSCU0L
- MARCH 2018
- REVISED AUGUST 2023
BQ77915 3-Series to 5-Series Stackable Ultra-Low Power Primary Protector with Autonomous Cell Balancing and HIBERNATE Mode
1 Features
- Ultra-low quiescent current: 8 µA typ. (NORMAL mode), 2 µA (HIBERNATE mode)
- Full suite of voltage, current, and temperature protections
- Smart passive cell balancing removes cell-to-cell imbalance
- Scalable cell count from 3 series to 20 series or more
- Voltage protection (accuracy ±10 m V for OV, ±18 m V for UV)
- Overvoltage: 3 V to 4.575 V
- Undervoltage: 1.2 V to 3 V
- Open cell and open-wire detection (OW)
- Current protection
- Overcurrent discharge 1:
- 10 m V to
- 85 m V
- Overcurrent discharge 2:
- 20 m V to
- 170 m V
- Short-circuit discharge:
- 40 m V to
- 340 m V
- Temperature protection
- Overtemperature charge: 45°C or 50°C
- Overtemperature discharge: 65°C or 70°C
- Additional Features
:
- Independent charge (CHG) and discharge (DSG) FET drivers
- Smart cell balancing algorithm with integrated FETs (up to 50-m A balancing current), also supports external FETs for higher cell-balancing...
