Texas Instruments bqTINY™-II series, BQ24023DRCR, single-cell Li-Ion/Polymer linear charger IC, 500 mA max charge current, USB interface, 10-VFDFN Exposed Pad package, -40°C to 125°C junction temperature.
| Parameter | Value |
|---|---|
| Series | bqTINY™-II |
| Mounting | Surface Mount |
| Battery pack voltage | 4.2V |
| Supply voltage | 6.5V |
| Current - charging | Constant - Programmable |
| Charge current - max | 500mA |
| Interface | USB |
| Operating temperature | -40°C~125°C(TJ) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 10-VFDFN Exposed Pad |
| Number of cells | 1 |
| Fault protection | Over Temperature |
| Battery chemistry | Lithium Ion/Polymer |
| Programmable features | Current, Timer |
For a typical 1000 mAh single-cell Li-Ion pack, that sets a minimum charge time of roughly two hours — the current ceiling is the limiter, not the thermal pad. The charge current is set with a single external resistor; the timer and current are the two programmable features.
The 10-VSON (3x3 mm) package with exposed pad pulls heat into the PCB copper — the thermal resistance depends on the pad's solder coverage and the number of vias under the die.
500 mA, programmable via an external resistor. The timer and current are the two programmable features.
Yes — the battery pack voltage is 4.2 V, which is the standard termination voltage for single-cell Li-Ion and Li-Polymer cells.
Yes — the battery chemistry is listed as Lithium Ion/Polymer. The charge algorithm is the same for both chemistries.
The BQ24020DRCR shares the same bqTINY-II series, USB interface, single-cell count, and 4.2 V regulation. The key difference is the package: BQ24020DRCR is also in a 10-VSON (3x3) but the supply voltage is listed as 4.2 V versus 6.5 V max for the BQ24023DRCR. Verify the input supply rail before substituting.