Texas Instruments BQ27425YZFT-G1, Impedance Track series, single-cell Lithium Cobalt Oxide battery monitor, I²C interface, surface-mount 15-DSBGA package, -40°C to 85°C operating range.
| Parameter | Value |
|---|---|
| Series | Impedance Track™ |
| Mounting | Surface Mount |
| Interface | I²C |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Battery Monitor |
| Case | 15-UFBGA, DSBGA |
| Number of cells | 1 |
| Battery chemistry | Lithium Cobalt Oxide |
The BQ27425YZFT-G1 is a single-cell battery monitor using Texas Instruments' Impedance Track algorithm to report remaining capacity and state-of-charge. Unlike a simple voltage-based gauge, it learns the cell's impedance over temperature and aging, so the reported charge stays accurate as the pack degrades.
Supplied in a 15-bump DSBGA package.
Yes, but only with Lithium Cobalt Oxide (LiCoO2) chemistry, which is the standard cathode in most single-cell Li-ion packs. It will not gauge LiFePO4 or LMO cells correctly because the algorithm expects the voltage-capacity curve of LiCoO2.