Package and footprint realities
Surface-mount assembly uses the 20-UFBGA, DSBGA package.
Buyers holding a BOM line for this code will need to source through independent distribution or the surplus market.

Texas Instruments BQ24151YFFT single-cell Li-Ion/Polymer linear charger, I²C programmable, 1.25 A max charge current, 4.44 V battery regulation, 20-DSBGA package, -40 to 85 °C.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Battery pack voltage | 4.44V (Max) |
| Supply voltage | 6V |
| Current - charging | Constant |
| Charge current - max | 1.25A |
| Interface | I²C |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 20-UFBGA, DSBGA |
| Number of cells | 1 |
| Fault protection | Over Temperature, Over Voltage |
| Battery chemistry | Lithium Ion/Polymer |
| Programmable features | Current, Timer, Voltage |
Surface-mount assembly uses the 20-UFBGA, DSBGA package.
Buyers holding a BOM line for this code will need to source through independent distribution or the surplus market.
The BQ24151 is the base product number; the BQ24151YFFT is a specific variant in the 20-DSBGA package (YFF suffix indicates the DSBGA package code). The electrical specifications — I²C interface, 1.25 A charge current, 4.44 V battery regulation — are identical across the base part. The difference is purely the package form factor.