Driver or library
BQ7961X-AUTOSAR-CDD — BQ7961x Autosar complex device driver software
BQ7961X-Q1 CDD documentation repository
BQ79616
16-S precision battery monitor, balancer and integrated protector with stacking interface
Data sheet
BQ79616
- ±1.5mV ADC accuracy
- 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
- Bus bar connection and measurement support
- 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
- Built-in SPI controller
The BQ79616 device provides high-accuracy cell voltage measurements in less than 200µs for 16-series battery modules in high-voltage battery management systems in HEV/EV. The monitor 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.
Technical documentation
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| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | BQ79616 16-Series Battery Monitor, Balancer, and Integrated Hardware Protector datasheet (Rev. A) | PDF | HTML | 11 Jun 2026 |
| Application note | BQ79616 Control Based on MSPM0 Through UART to CAN | PDF | HTML | 16 Dec 2024 | |
| Technical article | 3 major design challenges to solve in battery energy storage systems | PDF | HTML | 30 Jan 2024 | |
| Application note | BQ79616-Q1 Daisy Chain Communications | PDF | HTML | 26 Oct 2023 | |
| Application brief | Scaling accurate battery management designs across energy storage systems | PDF | HTML | 20 Oct 2023 | |
| Application note | BQ79616-Q1 Software Design Reference (Rev. B) | PDF | HTML | 21 Aug 2023 | |
| Application brief | Expanding Functionality of Cell Supervision Unit in Battery Management Systems | PDF | HTML | 14 Sep 2021 | |
| User guide | BQ79616-Q1 and BQ75614-Q1 Graphical User Interface (GUI) User's Guide | 14 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
Reference designs
TIDA-010271 — Stackable battery management unit reference design for energy storage systems
This is a full cell-temperature sensing and high cell voltage accuracy Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery pack (32s) reference design. The design monitors each cell voltage, cell temperature and protects the battery pack to secure safe use. This design uses onboard and (...)
Design guide:
PDF
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTQFP (PAP) | 64 | Ultra Librarian |
Ordering & quality
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