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TP4056 Lithium-Ion Cell Charging Module

TP4056 is a complete constant current-voltage linear charging module for single-cell 3.7 V lithium batteries. It will continuously monitor the voltage level of the battery during charging and discharging. The module operates with 5V 1A DC voltage, can be provided by the USB mini cable, commonly used in Smartphone chargers. Due to the low number of the external component count, make the TP4056 module ideally suited for your portable electronics applications.

TP4056 Module Specifications

The quick specification of the TP4056 module is below:

Type Charger, Protection Board
Module TP4056
Battery Type Li-Ion, Li-Pol
Battery Voltage 3.7V to 4.2V
Input Current Max. 1050 mA (~1A)
Input Voltage 4-8V
Output Voltage 4.2V
Connector Type USB Mini
Charging Method Linear Charging 1%
Charging Precision 1.5%
Package SOP-8

TP4056 Module Features

  • Include Current Monitor
  • Under Voltage Lockout
  • Automatic Recharge
  • Charger and Protection Circuit in One Module
  • Two Status Pin to Indicate Charge Termination
  • Indicate the Presence of an Input Voltage
  • Preset 4.2V Charge Voltage with 1.5% Accuracy

TP4056 Module Circuit Diagram

Schematic of the TP4056 3.7 V lithium battery charging/discharging module circuit shown below.

Working Principle of TP4056 Module

Lithium-Ion and Lithium-Polymer cells may explode if a shorted, overcharged, charged, or discharged with too high currents. TP4056 module is a combination of charger and protection for single cell 3.7V lithium batteries. Hence this module will monitor the voltage level of the lithium battery during charging and discharging.

Inside the module IC TP4056A, DW01A, and P-type MOSFET FS8205A are used. The charging process is controlled by the TP4056A Liner voltage IC, charge current is set by connecting a 1.2KΩ resistor from RPROG (Pin: 2) to GND. The DW01A battery protection IC is designed to protect lithium-ion/polymer battery from damage or degrading the lifetime due to overcharge, overdischarge. No blocking diode is required due to the FS8205A internal PMOSFET architecture and has prevented to negative charge current circuit.

The recommended operating voltage for the TIP4056 module circuit is 4-8V, 1A DC supply. You can use any type of mobile charger and its cable to power this module. When the charger is turned ON, the RED led will go high indicating that the battery is being charged. Once the module charges the battery completely, it will automatically stop charging and the Red LED will turn OFF and the Blue LED will turn ON to indicate the completion.

TP4056 module Connection diagram

TP4056 3.7V Lithium battery Charging/Discharging module Connection diagram
Connection diagram of the TP4056 3.7V lithium battery charging/discharging module.

Applications of TP4056 module

  • Cellular Telephones, PDAs, GPS
  • Charge and Discharge Lithium cells
  • Digital Still Cameras, Portable Devices
  • USB Bus-Powered Chargers, Chargers
  • Used with 5V booster for powering Arduino projects

Frequently Asked Question (FAQs)

After reading this article, you may have some questions, which will be discussed below.

How many batteries can be connected to TP4056? You can connect only one lithium-ion battery to the TP4056 charger at a time. Connecting multiple batteries in parallel to the charger can be dangerous and may cause the batteries to overheat, which can result in fire or explosion.
What is the maximum capacity of TP4056? The maximum charging capacity of the TP4056 is 1000 mA (1A). This means that the maximum charging current that can be supplied by the TP4056 is 1000 mA. However, the charging current can be set to lower values, such as 500 mA or 100 mA, by changing the value of the charging resistor on the board.
Can I charge mobile battery with TP4056? Technically, it is possible to charge a mobile phone battery with a TP4056 lithium-ion battery charger, but it may not be the best solution.

Mobile phone batteries are typically designed with more complex charging circuitry that includes various safety features such as overvoltage protection, overcurrent protection, and temperature sensing.

Charging a mobile phone battery with a simple TP4056 charger may not provide the necessary safety features and could potentially damage the battery or the phone.
Does TP4056 have BMS? No, the TP4056 lithium-ion battery charger does not have a built-in Battery Management System (BMS). This is a simple charging module that is designed to charge a single lithium-ion battery cell at a time.
Why is my TP4056 charger module getting hot? The TP4056 charger may generate some amount of heat during charging, which is usually normal. However, excessive heat generation could be an indication of a problem.

If the charger module gets too hot to touch or starts emitting a burning smell, it's important to immediately disconnect it from the power source and investigate the cause of the problem.

Some possible reasons why a charger may generate excessive heat are overloading, short circuit, damaged charger or battery, and high ambient temperature.

If the issue persists, it's recommended to seek professional help or replace the charger to avoid any potential damage to the device or the battery being charged.

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