Texas Instruments BQ76922 Product Info

Parameters

Rating	Catalog
Number of series cells (max)	5
Number of series cells (min)	3
Features	Cell balancing, High-side driver, I2C support, Integrated ADC, Multi-cell support, Open-wire detection, Overcurrent in charging protection, Overcurrent in discharging protection, Overtemperature protection, Overvoltage protection, Programmable EEPROM or EPROM, Short-current detection, Temperature sensing, Undertemperature protection, Undervoltage protection
Vin (max) (V)	27.5
Communication interface	HDQ, I2C
Operating temperature range (°C)	-40 to 85
Battery overvoltage protection (min) (V)	1
Battery overvoltage protection (max) (V)	5.5
Operating current (typ) (µA)	250

Package

WQFN (RSN)-32-16 mm² 4 x 4

Features

Battery monitoring capability for 3-series to 5-series cells
Integrated charge pump for high-side NFET protection with optional autonomous recovery
Extensive protection suite including voltage, temperature, current, and internal diagnostics
Two independent ADCs
- Support for simultaneous current and voltage sampling
- High-accuracy coulomb counter with input offset error < 1µV (typical)
- High accuracy cell voltage measurement < 10mV (typical)
Wide-range current applications (±200mV measurement range across sense resistor)
Integrated secondary chemical fuse drive protection
Autonomous or host-controlled cell balancing
Multiple power modes (typical battery pack operating range conditions)
- NORMAL mode: 286µA
- Multiple SLEEP mode options: 24µA to 41µA
- Multiple DEEPSLEEP mode options: 9µA to 10µA
- SHUTDOWN mode: 1µA
High-voltage tolerance of 60V on cell connect and select additional pins
Tolerant of random cell attach sequence on production line
Support for temperature sensing using internal sensor and up to five external thermistors
Integrated one-time-programmable (OTP) memory programmable by customers on production line
Communication options include 400kHz I2C, and HDQ one-wire interface
Programmable LDO for external system usage
32-pin QFN package (RSN)

Battery monitoring capability for 3-series to 5-series cells
Integrated charge pump for high-side NFET protection with optional autonomous recovery
Extensive protection suite including voltage, temperature, current, and internal diagnostics
Two independent ADCs
- Support for simultaneous current and voltage sampling
- High-accuracy coulomb counter with input offset error < 1µV (typical)
- High accuracy cell voltage measurement < 10mV (typical)
Wide-range current applications (±200mV measurement range across sense resistor)
Integrated secondary chemical fuse drive protection
Autonomous or host-controlled cell balancing
Multiple power modes (typical battery pack operating range conditions)
- NORMAL mode: 286µA
- Multiple SLEEP mode options: 24µA to 41µA
- Multiple DEEPSLEEP mode options: 9µA to 10µA
- SHUTDOWN mode: 1µA
High-voltage tolerance of 60V on cell connect and select additional pins
Tolerant of random cell attach sequence on production line
Support for temperature sensing using internal sensor and up to five external thermistors
Integrated one-time-programmable (OTP) memory programmable by customers on production line
Communication options include 400kHz I2C, and HDQ one-wire interface
Programmable LDO for external system usage
32-pin QFN package (RSN)

Description

The Texas Instruments BQ76922 device is a highly integrated, high-accuracy battery monitor and protector for 3-series to 5-series Li-ion, Li-polymer, and LiFePO4 battery packs. The device includes a high-accuracy monitoring system, a highly configurable protection subsystem, and support for autonomous or host controlled cell balancing. Integration includes high-side charge-pump NFET drivers, a programmable LDO for external system use, and a host communication peripheral supporting 400kHz I2C and HDQ one-wire standards. The BQ76922 device is available in a 32-pin 4 × 4 mm QFN package.

ELECTRONIC COMPONENTS
All In One Distributor

BQ76922

Three-series to five-series cell lithium-ion and lithium-phosphate battery monitor

Texas Instruments BQ76922 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

BQ76922

Three-series to five-series cell lithium-ion and lithium-phosphate battery monitor

Texas Instruments BQ76922 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor