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TP4056 Li-ion Charger
TP4056
NanJing Top Powerpower regulator
The TP4056 is a linear constant-current/constant-voltage charger designed for single-cell lithium-ion batteries. It features thermal regulation, programmable charge current up to 1000mA, and two status outputs to indicate charging and charge termination.
In stock
Specifications
8- Operating Voltage
- 4.0-8.0 V
- Charge Current Max
- 1000 mA
- Charge Voltage
- 4.2 V
- Charge Voltage Accuracy
- 1.5 %
- Trickle Charge Threshold
- 2.9 V
- Operating Temperature Range
- -40-85 C
- Package
- SOP-8
- Battery Type
- Single Cell Li-Ion
Pinout
8| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | TEMP | — | Temperature sense input for NTC thermistor; can be grounded to disable. |
| 2 | PROG | — | Sets constant charge current with an external resistor to GND; also a current monitor pin. |
| 3 | GND | GND | Ground terminal. |
| 4 | VCC | POWER | Positive input supply voltage. |
| 5 | BAT | POWER | Battery connection pin; provides charge current and 4.2V regulation. |
| 6 | DONE | GPIO | Open-drain output, pulled low when charge termination is reached. |
| 7 | CHG | GPIO | Open-drain output, pulled low when the battery is being charged. |
| 8 | CE | GPIO | Chip Enable input; high for normal operation, low for disable mode. |
Interactive pinout
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TP4056
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