The Texas Instruments BQ27Z855 Dynamic Z-Trackgas gauge solution is a fully integrated, accurate 1-series cell gas gauge, JEITA-compliant linear battery charger, protection, and authentication solution.
The BQ27Z855 gas gauge communicates through an I2C compatible interface and combines an ultra-low power ARM M0 RISC processor, high accuracy analog measurement capabilities, integrated flash memory, high-side NMOS FET drivers, and ECC ECDSA authentication to provide a complete, high-performance battery management solution.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | User guide | BQ27Z855 Technical Reference Manual (Rev. A) | PDF | HTML | Jul 21, 2026 |
| Application note | Dynamic Z-Track™ Technology: An Advanced Battery Gauging Algorithm for Dynamic Load Applications (Rev. A) | PDF | HTML | Jul 15, 2025 | |
| Application note | Implementation of Elliptic Curve Cryptography Authentication on TI Battery Fuel Gauges | PDF | HTML | May 28, 2025 | |
| Application note | How to Create and Program Authentication Keys into TI Battery Fuel Gauges | PDF | HTML | Mar 5, 2025 | |
| Application note | Battery Gauging Algorithm Comparison | PDF | HTML | Dec 4, 2023 |
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