Driver or library
BQ7961X-AUTOSAR-CDD — BQ7961x Autosar complex device driver software
BQ7961X-Q1 CDD documentation repository
BQ79612-Q1
Automotive 12-S precision battery monitor, balancer and integrated protector with ASIL-D compliance
Data sheet
BQ79612-Q1
- 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
- Developed for functional safety applications
- Documentation to aid ISO 26262 system design
- Systematic capability up to ASIL D
- Hardware capability up to ASIL D
- +/- 1.5mV ADC accuracy
- Pin-package and software compatible device family:
- Stackable monitor 16S (BQ79616-Q1, BQ79616H-Q1, BQ79656-Q1), 14S (BQ79614-Q1, BQ79654-Q1), and 12S (BQ79612-Q1, BQ79652-Q1)
- Standalone monitor 48V system (BQ75614-Q1)
- Built-in redundancy path for voltage and temperature diagnostics
- Highly accurate cell voltage measurements within 128µs for all cell channels
- Integrated post-ADC configurable digital low-pass filters
- Supports bus bar connection and measurement
- Built-in host-controlled hardware reset to emulate POR-like device reset
- Supports internal cell balancing
- Balancing current at 240mA
- Built-in balancing thermal management with automatic pause and resume control
- Isolated differential daisy chain communication with optional ring architecture
- Embedded fault signal and heartbeat through communication line
- UART/SPI host interface/communication bridge device BQ79600-Q1
- Built-in SPI master
BQ79612-Q1, BQ79614-Q1, BQ79616-Q1 and BQ79616H-Q1 provide high-accuracy cell voltage measurements in less than 200µs for 12S, 14S and 16S battery modules in high-voltage battery management systems in HEV/EV. The family of monitors offers different channel options in the same package type, providing pin-to-pin compatibility and supporting high reuse of the established software and hardware across any platform. The integrated front-end filters enable the system to implement with simple, low voltage rating, differential RC filters on the cell input channels. The integrated, post-ADC, low-pass filters enable filtered, DC-like, voltage measurements for better state of charge (SOC) calculation. This device supports autonomous internal cell balancing with temperature monitoring to auto-pause and resume balancing to avoid an overtemperature condition.
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Technical documentation
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| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | BQ7961X-Q1 Functional Safety-Compliant Automotive 16S/14S/12S Battery Monitor, Balancer and Integrated Hardware Protector datasheet (Rev. F) | PDF | HTML | 11 Jun 2026 |
| User guide | BQ7961x-Q1 Design Recommendations for High Voltage Automotive BMS (Rev. B) | PDF | HTML | 18 Jun 2025 | |
| Application note | BQ79616-Q1 Daisy Chain Communications | PDF | HTML | 26 Oct 2023 | |
| Application note | BQ79616-Q1 Software Design Reference (Rev. B) | PDF | HTML | 21 Aug 2023 | |
| Technical article | Intelligent junction box with voltage and current synchronization in EVs | PDF | HTML | 08 Apr 2022 | |
| User guide | BQ79616-Q1 and BQ75614-Q1 Graphical User Interface (GUI) User's Guide | 14 Dec 2020 | ||
| Technical article | Conserve battery power in HEV/EVs with automatic host reverse wakeup | PDF | HTML | 04 Dec 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
BQ79616EVM-021 — BQ79616 evaluation module for 16-S precision battery monitor, balancer and integrated protector
The BQ79616 evaluation module (EVM) is a development platformfor the BQ79616-Q1. BQ79616-Q1 provides high accuracy and channel measurements for six to 16 battery cells. With the inclusion of a daisy-chain communication port, BQ79616-Q1 is stackable (up to 35 devices) to support (...)
Driver or library
BQ7X61X-Q1-DEVELOPMENT — BQ7x61x-Q1 development files
BQ7x61x-Q1 documentation repository
Supported products & hardware
Driver or library
BQ7X61X-Q1-EVALUATION — BQ7x61x-Q1 evaluation files
BQ7X61X-Q1 evaluation files repository
Supported products & hardware
Driver or library
BQ7X61X-Q1-FMEDA — BQ7x61x-Q1 FMEDA files
BQ7x61x-Q1 FMEDA documentation repository
Supported products & hardware
Driver or library
BQ7X61X-Q1-FUNCTIONAL-SAFETY-DOCS — BQ7x61x-Q1 functional safety documents
BQ7X6X-Q1 functional safety documentation repository
Supported products & hardware
Simulation tool
MNOVA-3P-NOVACARTS — MicroNova NovaCarts cell module controller (CMC) simulator for validating battery management systems
The NovaCarts cell module controller (CMC) simulation can simulate up to 35 cell monitoring integrated circuits of the automotive battery cell monitors family. The simulator is connected to the battery management system (BMS) host via a daisy chain interface. Typical applications of the simulator (...)
From: MicroNova
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTQFP (PAP) | 64 | Ultra Librarian |
Ordering & quality
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