Texas Instruments BQ27Z561YPHT, Impedance Track™ series, single-cell Li-Ion/Polymer fuel gauge, HDQ and I²C interface, -40°C to 85°C operating temperature, 12-DSBGA (1.68x2.05 mm) package, Surface Mount.
| Parameter | Value |
|---|---|
| Series | Impedance Track™ |
| Mounting | Surface Mount |
| Interface | HDQ, I²C |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Function | Fuel Gauge |
| Case | 12-XFBGA, DSBGA |
| Number of cells | 1 |
| Battery chemistry | Lithium Ion/Polymer |
Housed in a 12-DSBGA package measuring 1.68x2.05 mm, this gauge occupies minimal board area — sized for space-constrained battery-side PCBs inside a pack or on a system board next to the connector.
The BQ27Z561 is a single-cell fuel gauge — it supports one Lithium Ion or Lithium Polymer cell. It is not designed for multi-cell series stacks.