TP4056 Li-ion charger module with protection (DW01A)
Charges one Li-ion cell from 5 V: 1 A constant current (PROG 1.2 kΩ) up to 4.2 V, then constant voltage until the current falls to 1/10; below 2.9 V trickle charge with 130 mA. Red LED (CHRG) while charging, green (STDBY) when full. The DW01A protection cuts the load off below 2.4 V cell voltage (after 40 ms; back on above 3.0 V), stops charging above 4.3 V and switches off at 3 A overcurrent or a short. Connect the cell to B+/B−, the load to OUT+/OUT−.
Key data
- Category
- Modules
- Simulation model
- Behavioural mixed-signal model
- Manufacturer part number
- TP4056 + DW01A + FS8205A module (03962A)
- Reference prefix
- U
- Pins
- 8
- Land pattern
- PinHeader_1x08_P2.54mm_Vertical
Simulation model
A behavioural model implements the interface of the chip (registers, protocol, timing) at its pins. The pins are connected to the analog circuit like CMOS pins.
- Model
- tp4056
- Supply pins
- IN+ / IN-
Pins 8
| Pin | Name | Use |
|---|---|---|
| IN+ | IN+Supply pin | Charger input 4–8 V (USB 5 V) |
| IN- | IN−Ground pin | Charger ground (= OUT−) |
| B+ | B+Supply pin | Cell + (single Li-ion cell) |
| B- | B−Passive pin | Cell − (through the protection MOSFETs to OUT−) |
| OUT+ | OUT+Supply pin | Load + (= B+) |
| OUT- | OUT−Ground pin | Load − (switched by the protection) |
| CHRG | CHRGOutput pin | Charge status: low while charging (red LED on the board) |
| STDBY | STDBYOutput pin | Charge status: low when the cell is full (green LED on the board) |
Parameters 2
rprogI = 1200 V / R: 1.2 kΩ = 1 A, 2.4 kΩ = 500 mA, 10 kΩ = 130 mA
vrechgnot in the TP4056 data sheet revision used; 4.05 V as in comparable chargers
PCB
PinHeader_1x08_P2.54mm_VerticalTP4056 Li-ion charger module with protection (DW01A) as a module on a 8-pin header (IN+, IN−, B+, B−, OUT+, OUT−, CHRG, STDBY) – wire it to the pads / terminals of your module