Texas Instruments BQ34110PW, Battery Monitor, Multi-Chemistry, 1-4 Cells, I²C Interface, 14-TSSOP Package, -40°C to 85°C, Active.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Interface | I²C |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tube |
| Function | Battery Monitor |
| Case | 14-TSSOP (0.173\", 4.40mm Width) |
| Number of cells | 1 ~ 4 |
| Battery chemistry | Multi-Chemistry |
The Texas Instruments BQ34110PW is a multi-chemistry battery monitor that tracks charge and health for 1 to 4 series cells. It communicates over an I²C bus, making it straightforward to integrate with a host MCU in a portable or standby-power system.
The 14-TSSOP body (4.40 mm width) is a common footprint; verify land pattern against your existing 14-pin TSSOP layout.
The BQ34110PW uses an I²C interface for communicating cell voltage, current, and temperature data to the host controller.
It monitors 1 to 4 series cells, covering a range from single-cell portable packs up to 4S battery stacks.
The BQ2084DBT-V143 is a functional peer — also a surface-mount battery monitor, but limited to Lithium Ion/Polymer chemistry and a -20°C to 85°C range, with an SMBus interface instead of I²C. Verify pin compatibility and firmware porting before substituting.