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[TI Products] New BQ79758QPAPRQ1 Automotive 18-cell Series Battery Monitor and Balancer

[TI Products] New BQ79758QPAPRQ1 Automotive 18-cell Series Battery Monitor and Balancer

Source:our siteTime:2025-08-30Views:

The BQ79758QPAPRQ1 device is an automotive-grade 18-cell series battery monitor launched by (TI), which complies with ASIL-D functional safety standards and supports current detection and I2C communication. The following are its key features:The follo…

The BQ79758QPAPRQ1 device is an automotive-grade 18-cell series battery monitor launched by (TI), which complies with ASIL-D functional safety standards and supports current detection and I2C communication. The following are its key features:

The following performances comply with the AEC-Q100 standard:

Equipment temperature grade: 1

Ambient operating temperature range: -40 °C to +125 °C

Comply with functional safety standards

Documentation, assisting in the design of the ISO 26262 system

The system capability is as high as ASIL D

The hardware capability is up to ASIL D

Each device can measure 9 to 18 series-connected batteries, and up to 64 devices can be stacked

Dedicated ADC, with a typical accuracy of ±1mV

Two independent current-sensing ADCs, featuring ±0.1% gain error drift and an input range of +/-275mV

Programmable overcurrent detection comparator

Support fully redundant limping mode

The integrated rear ADC can be configured with a digital low-pass filter

Support busbars without affecting measurement accuracy

Ten GPIOs are used for temperature sensors/analog/digital /I2C controllers /SPI controllers

Internal battery balance

The equilibrium point is 300mA

The user controls the PWM regulation unit to balance the current

It is equipped with built-in balanced thermal management and features automatic pause and resume control functions

Powerful Daisy chain communication function, supporting ring structure

The host hardware reset can simulate similar POR events without removing the battery

On-chip memory for one-time custom programming

The current in low-power mode is less than 6µA

Compatible with bq79600-Q1 with SPI/UART interface

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For details

The BQ79758QPAPRQ1 18S battery monitor and balancer can provide high-precision battery voltage measurement for battery modules in xEV/ev high-voltage battery management systems, up to 18S. This display offers different channel options within the same package type, features pin-to-pin compatibility, and supports the high reusability of established software and hardware on any platform. The BQ79758QPAPRQ1 features the most advanced ADC architecture/measurement system, meeting strict automotive standards and safety requirements. The Daisy chain is isolated by a transformer (or capacitor), and the BQ79758QPAPRQ1 is suitable for centralized or distributed architectures in xEV powertrains.


Application scenarios

Battery Management systems (BMS) in hybrid and electric powertrain systems

Energy storage battery packs with battery management systems


Basic parameters

Product: BQ79758QPAPRQ1

Function: Battery monitor

Battery chemical composition: Multi-chemical

Battery count: 9 to 18

Fault protection: Over-temperature, overvoltage/undervoltage

Interfaces: I2C, SPI, UART

Operating temperature: -40°C to 125°C

Grade: Automotive grade

Qualification: AEC-Q100

Installation type: Surface mount type

Package/Housing: 64-HTQFP (10x10)


Contact us immediately: Welcome to visit the official website of mingjiada electronics (www.hkmjd.com) to check the inventory of BQ79758QPAPRQ1, or call +86 13410018555 (Mr. Chen) to obtain the product purchase quotation.


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