TIBQ7694202PFBR
Overview
The BQ7694202PFBR is a high-accuracy battery monitor and protector designed for 3-series to 10-series Li-Ion, LiFePO4, and LTO battery packs. This multi-function controller integrates high-side protection NFET drivers, a programmable LDO for external system use, and an autonomous cell balancing system. It provides a comprehensive hardware-based protection suite for over-voltage, under-voltage, over-current, and temperature faults without requiring constant MCU intervention.
Why Choose This Part
This IC features a very low shutdown current of 1 microamp and a run current of 286 microamps, making it ideal for products with long shelf-life requirements. It supports multiple digital interfaces including I2C, SPI, and HDQ, providing flexibility for different host microcontroller architectures. The integrated 3.3V LDO simplifies the system BOM by powering the external controller directly from the battery stack.
Applications
Key Specifications
Getting Started
Engineers should evaluate this part using the BQ76942EVM evaluation module alongside the TI Battery Management Studio (BQSTUDIO) software. The 48-TQFP package requires standard SMT reflow processes and careful Kelvin sense routing for the low-side current shunt to ensure measurement accuracy.
