Introduction
A good battery charger is just as vital as a good battery because the latter’s performance is determined by how properly you charge and utilize it. Battery chargers, in reality, work as a catalyst for getting the most out of your batteries and making them more powerful and robust. Thus, there are many different kinds of battery charger modules available. One of them is TP4056, which we will discuss in this article.
Overview of TP4056 Battery Charger Module
Hardware Overview
The TP4056 chip is a single-cell lithium-ion battery charger that protects the cell against overcharging and undercharging. It features two status outputs, one for charging in process and the other for charging completed.
The module connects the breakout board to any computer or USB wall adapter through Micro USB. It employs a linear charging system. It has a default charge current of 1000mA, however, one can change it from 50mA to 1000mA by connecting a resistor. The default resistor on the board is a 1.2K Ohm resistor.
Know that, Since the TP4056 lacks reverse polarity protection, you’ll get smoke if you connect the battery the wrong way up.
Features and Specifications of TP4056 Battery Charger Module
Features
- Led indicator: red is charging Green is fully charged.
- Current Protection: Yes
- Inverse polarity: NO.
- Use mature charging chip TP4056 for simple peripheral circuits, good protection performance, and high charging accuracy.
- Fully machinery automated processing, all patch parts manufacturing.
- It is small in size and lightweight
- specially designed for a single lithium battery charging
- It has battery temperature sensing
- Under-voltage Lockout
- Automatic Recharge
- LED status pins for charging and termination
Specifications
- Linear charging.
- Current: 1A adjustable.
- Charge precision: 1.5%.
- Input voltage: 4.5V-5.5V.
- Full charge voltage: 4.2V ± 1%
- Led indicator: red is charging Green is fully charged.
- Input interface: micro USB/mini USB/type-c USB
- Work temperature: -10° to +85°.
- Inverse polarity: NO.
Pinouts of TP4056 Battery Charger Module
| Pin Number | Name | Description |
| 1. | TEMP | Temperature Sense Input |
| 2. | PROG | Constant Charge Current Setting and Charge Current Monitor Pin |
| 3. | GND | Ground terminal |
| 4. | VCC | Positive Input Supply Voltage |
| 5. | BAT | Battery Connection Pin |
| 6. | STDBY | Open Drain Charge Status Output |
| 7. | CHRG | Open Drain Charge Status Output |
| 8. | CE | Chip Enable Input |
How to Use TP4056 Battery Charger Module
The TP4056 module is powered by a 5V supply via a micro USB cable or the IN+ and IN-solder pads. For the charger to successfully charge a battery connected to the output terminals, a current of at least 1A is necessary. Connect the B+ and B- connections to the cell you want to charge. The battery’s power is supplied through the OUT+ and OUT- pads. As a result, if you’re running a load, you may attach it to these two pads. But remember to unplug the load from the module if you’re charging a cell.
Applications of Battery Charger Module
- For charging and discharging of lithium cells used in any electronic devices.
- Laptops, batteries, USB Chargers, power banks, and other portable electronics
