Battery fuel gauge with integrated protector for 1-2 series packs
Product details
Parameters
Package | Pins | Size
Features
- Autonomous battery charging control, using a dedicated MASTER mode I2C interface
- Cell balancing with an internal bypass to optimize battery health
- A high-side protection N-CH FET drive enables serial bus communication during fault conditions
- Programmable protection levels for voltage, current, and temperature
- Analog front-end with two independent ADCs
- Support for simultaneous current and voltage sampling
- High-accuracy coulomb counter with input offset error < 1 µV (typical)
- Supports down to 1-mΩ current sense resistor while capable of 1-mA current measurement
- Supports battery trip point (BTP) function for Windows® integration
- SHA-1 authentication responder for increased battery pack security
- 400-kHz I2C bus communications interface for high-speed programming and data access
- Compact 12-pin VSON package (DRZ)
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Description
The Texas Instruments BQ28Z610-R1 device is a highly integrated, accurate, 1-series to 2-series cell gas gauge and protection solution, enabling autonomous charger control and cell balancing.
The BQ28Z610-R1 device enables autonomous charge control through Master Mode I2C broadcasts of charging current and voltage information, eliminating software overhead that is typically incurred by the systems host controller.
The BQ28Z610-R1 device provides a fully integrated pack-based solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for 1- to 2-series cell Li-Ion and Li-Polymer battery packs.
The BQ28Z610-R1 gas gauge communicates via an I2C compatible interface and combines an ultra-low-power, high-speed TI BQBMP processor, high-accuracy analog measurement capabilities, integrated flash memory, an array of peripheral and communication ports, an N-CH FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.
The BQ28Z610-R1 device provides an array of battery and system safety functions, including overcurrent in discharge, short circuit in charge, and short circuit in discharge protection for the battery, as well as FET protection for the N-channel FETs, internal AFE watchdog, and cell balancing. Through firmware, the devices can provide a larger array of features including protection against overvoltage, undervoltage, overtemperature, and more.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | BQ28Z610-R1 Impedance Track™ Gas Gauge and Protection Solution for 1-Series to 2-Series Cell Li-Ion Battery Packs datasheet (Rev. A) | Feb. 11, 2020 |
* | User guide | BQ28Z610-R1 Technical Reference Manual | Jan. 16, 2020 |
Application note | BQ28Z610-R1 Change List | Apr. 02, 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The bq28z610 EVM evaluation module (EVM) is a complete evaluation system for the bq28z610 or bq294502 battery management system. The EVM includes one bq28z610 and bq294502 circuit module and a link to Windows™ based PC software. The circuit module includes one bq28z610 integrated circuit (...)
Features
- Complete evaluation system for the bq78z100EVM 1s-2s Battery Pack Manager Evaluation Module and bq294502 independent overvoltage protection IC.
- Populated circuit module for quick setup.
- Software that allows data logging for system analysis.
Software development
Features
- Real-time Gauge Dashboard for monitoring basic registers
- Full register access and logging
- Full data memory access and logging
- Product configuration and monitoring tools
- Import and export of product configurations
- Calibration and test automation
- Export of FS files for the target production environment
Reference designs
Design files
-
download PMP40496 Assembly Drawing.pdf (322KB) -
download PMP40496 PCB.pdf (1341KB) -
download PMP40496 Gerber.zip (1242KB) -
download PMP40496 BOM (Rev. A).pdf (102KB) -
download PMP40496 CAD Files (Rev. A).zip (2510KB)
Design files
-
download PMP9769 BOM.pdf (89KB) -
download PMP9769 PCB.pdf (1151KB) -
download PMP9769 Gerber.zip (275KB)
Design files
-
download TIDA-00895 BOM.pdf (206KB) -
download TIDA-00895 Assembly Drawing.pdf (199KB) -
download TIDA-00895 PCB.pdf (582KB) -
download TIDA-00895 CAD Files.zip (1250KB) -
download TIDA-00895 Hardware Design File.zip (438KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SON (DRZ) | 12 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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