NanJing Top Power
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Single-cell lithium charger with constant current then constant voltage, up to 1A, set by a programming resistor. The chip on the red USB charging boards.
| Part number | TP4056 |
|---|---|
| Manufacturer | NanJing Top Power |
| Category | Integrated Circuits › Battery Charger ICs |
| Package | SOP-8 |
| Pins | 8 |
| Current | 1 A |
TP4056 pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | TEMP | input | Battery thermistor — tie to GND if unused |
| 2 | PROG | analog | Sets charge current via a resistor to ground |
| 3 | GND | ground | Ground |
| 4 | VCC | power | Input, 4–8V |
| 5 | BAT | power out | Battery connection |
| 6 | STDBY | oc | Charge-complete indicator |
| 7 | CHRG | oc | Charging indicator |
| 8 | CE | input | Chip enable |
Schematic symbol and footprint
Schematic symbol
Footprint: SOIC-8 — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.