Texas Instruments BQ24091DGQT single-cell Li-Ion/Polymer linear charger IC, USB interface, 1 A max charge current, programmable constant-current charging, over-temperature/over-voltage/short-circuit protection, 10-HVSSOP package.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Battery pack voltage | 4.2V |
| Supply voltage | 6.45V |
| Current - charging | Constant - Programmable |
| Charge current - max | 1A |
| Interface | USB |
| Operating temperature | 0°C~125°C(TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 10-PowerTFSOP, 10-MSOP (0.118\", 3.00mm Width) |
| Number of cells | 1 |
| Fault protection | Over Temperature, Over Voltage, Short Circuit |
| Battery chemistry | Lithium Ion/Polymer |
| Programmable features | Current |
The USB interface simplifies connection to a 5 V bus, and the 4.2 V battery pack voltage matches standard single-cell Li-Ion termination. Fault protection includes over-temperature, over-voltage, and short-circuit — the three events that kill a battery or the charger itself.
Supplied in a 10-HVSSOP package (10-PowerTFSOP, 3.00 mm width). The supplier device package is 10-HVSSOP.
Yes. The USB interface is listed in the specifications, and the maximum supply voltage is 6.45 V, so a 5 V USB bus is within the operating range.