Product description: Li-Ion charger TP4056 single cell 1S 3.7V microUSB with protection
A simple charger for single-cell lithium-ion batteries with a nominal voltage of 3.7 V. The maximum charging current is 1000 mA. The system is powered via a microUSB connector or via cables connected to the IN+ and IN- inputs. The module is protected against over-discharge below 2.5 V and over-current above 3 A.

The module has 6 pins and a microUSB connector.
Derivations
The module has 6 pins in the form of solder pads and a microUSB connector.
| Pin | Description |
|---|---|
| IN+ | Supply voltage from 4.5 V to 5.5 V. |
| IN- | System mass. |
| BAT+, BAT- | Connectors for connecting a 3.7 V Li-Ion battery. |
| OUT+, OUT- | Connectors for connecting a powered device . When the battery voltage is detected as too low, the system switches power from the BAT connector to the IN connector . |
Attention ! Before connecting the battery, check the plug polarity. |
TP4056 Li-Ion Charger Specifications
- Chip: TP4056
- Supply voltage: (microUSB or IN connectors) 4.5 V to 5.5 V
- Charging voltage: 4.2 V
- Maximum charging current: 1 A
- Socket: microUSB ( microUSB cable can be purchased separately)
- Two signaling diodes
- Red: charging
- Green: fully charged
- Protection against discharge below 2.5 V
- Protection against current consumption above 3 A
- Module dimensions 26 x 18 mm
Useful links |
