3-s to 16-s high accuracy battery monitor and protector for li-ion, li-polymer, and LiFePO4
Product details
Parameters
Package | Pins | Size
Features
- Battery monitoring capability for 3-series to 16-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 < 1 µV (typical)
- High accuracy cell voltage measurement < 10 mV (typical)
- Wide-range current applications (±200-mV 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: 250 µA
- Multiple SLEEP mode options: 20 µA to 60 µA
- Multiple DEEPSLEEP mode options: 10 µA to 14 µA
- SHUTDOWN Mode: < 2 µA
- High voltage tolerance of 85 V on cell connect and select additional pins
- Support for temperature sensing using internal sensor and up to 9 external thermistors
- Integrated one-time-programmable (OTP) memory programmable by customers on production line
- Communication options include 400-kHz I2C, SPI, and HDQ one-wire interface
- Dual programmable LDOs for external system usage
- 48-pin TQFP package (PFB)
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Description
The Texas Instruments BQ76952 is a highly integrated, high accuracy battery monitor and protector for 3-series to 16-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, dual programmable LDOs for external system use, and a host communication peripheral supporting 400-kHz I2C, SPI, and HDQ one-wire standards. The BQ76952 is available in a 48-pin TQFP package.
Sample availability
Preproduction samples are available (PBQ76952PFBT). Request now
Technical documentation
= Top documentation for this product selected by TI
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
BQ76952EVM
Description
The BQ76952EVM evaluation module (EVM) is a complete evaluation system for the BQ76952, a 3-cell to 16-cell Li-Ion battery monitor integrated circuit. The EVM consists of a BQ76952 circuit module which is used for simple evaluation of the BQ76952 monitor function. The circuit module includes one (...)
Features
- Complete evaluation system for the BQ76952 3-cell to 16-cell Li-Ion and Phosphate battery monitor
- Populated circuit module for 16-cell configuration for quick setup
- Communication available with included USB interface adapter or available on 4-pin connector
- Resistor cell simulator for operation with (...)
Software development
BQSTUDIO — Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)
Features
- Real-time Gauge Dashboard for monitoring basic registers
- Full register access and logging
- Full data memory access and logging
- Product configuration and monitoring tools
- Import and export of product configurations
- Calibration and test automation
- Export of FS files for the target production environment
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| TQFP (PFB) | 48 | View options |
Ordering & quality
Support & training
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