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BQ79600-Q1
  • BQ79600-Q1

BQ79600-Q1

ACTIVE

Automotive SPI/UART communication interface functional-safety compliant with automatic host wakeup

Texas Instruments BQ79600-Q1 Product Info

1 April 2026 3

Parameters

Rating

Automotive

Features

Separate MCU requirement, Stackable (built-in interface)

Communication interface

Daisy chain, SPI, UART

Device type

Communication device

Operating temperature range (°C)

-40 to 125

TI functional safety category

Functional Safety-Compliant

Operating current (typ) (µA)

2500

Package

TSSOP (PW)-16-32 mm² 5 x 6.4

Features

  • Qualified for automotive applications
  • AEC-Q100 Qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Compliant
  • Automatic wake up of BMS/BMU system when fault is detected in ring architecture
  • Support supply from 4.75-V to 40-V
  • UART/SPI Host interface
  • Compatible with 3.3-V/5-V logic
  • Isolated differential daisy chain
    • Support ring architecture with one device
    • Support transformer/ capacitor isolation
  • Designed for BCI/EMI/EMC robustness
  • Supports BQ7961X-Q1 family, BQ7965X, BQ7963X and future products
  • Qualified for automotive applications
  • AEC-Q100 Qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Functional Safety-Compliant
  • Automatic wake up of BMS/BMU system when fault is detected in ring architecture
  • Support supply from 4.75-V to 40-V
  • UART/SPI Host interface
  • Compatible with 3.3-V/5-V logic
  • Isolated differential daisy chain
    • Support ring architecture with one device
    • Support transformer/ capacitor isolation
  • Designed for BCI/EMI/EMC robustness
  • Supports BQ7961X-Q1 family, BQ7965X, BQ7963X and future products

Description

The BQ79600-Q1 is a communication (bridge) IC designed to interface between a microcontroller (MCU) and TI battery monitoring ICs, for example the BQ7961X-Q1. The information from the MCU is translated by the device to signals recognized by TI’s battery management daisy chain protocol, and transmitted out. And signals from daisy chain are decoded to bit stream and then sent back to MCU.

When the MCU and PMIC are in SHUTDOWN/ SLEEP, the BQ79600-Q1 can wake them up if any unmasked fault is detected when using ring architecture.

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