Texas Instruments BQ24725ARGRT, Li-Ion battery charger IC, 1-4 cells, I²C interface, 24V max supply, 19.2V max pack voltage, 20-VQFN exposed pad, surface mount, active.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Battery pack voltage | 19.2V (Max) |
| Supply voltage | 24V |
| Current - charging | Constant - Programmable |
| Interface | I²C |
| Operating temperature | 0°C~125°C(TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 20-VFQFN Exposed Pad |
| Number of cells | 1 ~ 4 |
| Fault protection | Over Current, Over Voltage, Short Circuit |
| Battery chemistry | Lithium Ion |
It accepts a supply up to 24 V and charges the pack to a maximum of 19.2 V. The constant-current charge is programmable via I²C, making it a fit for portable electronics, notebooks, and industrial handhelds where the system microcontroller manages the charge profile.
For BOM resilience, qualifying a backup part early is prudent, but there is no imminent supply risk.
No. The part is listed as Active with no NRND or EOL notice. It is suitable for new designs and ongoing production.
The 1-4 cell range covers a 3-cell pack. The charge voltage target for 3 Li-Ion cells at 4.2 V/cell is 12.6 V, which is within the 19.2 V max pack voltage. The I²C interface is used to set the cell count and voltage thresholds — the host microcontroller programs the register map accordingly.