TP4056 li-ion 3.7v battery 18650 Charging Module Detail, Pinout and datasheet


 In this text I will discuss about the famous TP4056 charging module which is a 3.70V  Li-ion battery 18650 in detail. The pinout, characteristics, setup and calibration for battery value will be covered in this text. TP4056 charger module is a very tiny size module to charge li ion batteries that it can fit anywhere inside any electronic equipment or instrument. TP4056 module consists of a single chip IC TP5640  and a few other supporting components which makes high quality and precision charging module which gives complete solution to automatically charge li-ion batteries of any small size. Using TP4056 module to charge the li-ion battery, it provides full battery life and effective charging to prolong battery life with great efficiency. Using TP4056 battery charging module you can make the line powered equipment less power consuming and the old equipment using dry cell can be converted to rechargeable battery solution.

TP4056 Charger or charging module

TP4056 Charging Module Characteristic and Technical details

  1. Input mini usb, micro usb and C port as well as soldering pad connections
  2. Two indication for charging status.
  3. Over current and over charging protection
  4. Battery charging current can be adjustable or can be controlled by replacing one resistor value to certain value which could be obtained easily from the table bellow in this text.
  5. The module can connected to AC DC power supply by a usb type cable
  6. Battery temperature measurement is made by IC. It will prevent during overheating.
  7. Cheap in price and easily available everywhere
  8. Softly starts charging. Soft start charging feature.
  9. Automatic cut off charging when battery fully charged.
  10. Battery full charge indication
  11. Battery charging current can be adjusted from 130mA to 1000mA.
  12. wide power supply voltage range form 5.0V to 10.1V DC.

TP4056 charger module explained

TP4056 charging module is a complete charging solution which provides efficient charging solution to 3.7V single rechargeable cell. This module can be used to charge any small size 3.7V lithium iron battery including 18650 cell. This charging module name employees TP4056 due to TP4056 chip used inside this module which is the main part of this module. A few external components are used to support the chip.

The IC has a temperature sensing pin where an NTC can be connected which would be placed on the battery and that NTC will stop charging when the battery under charge temperature will get increase. There are two led indicator sink type pins on the chip in which on of the LED shows the charging state and the other led turns on when charging is complete and charging is disconnected and the charged led would flesh.

TP4056 provides steady 1A charging current which could be reduced or programmed by replacing the value of one resistor.

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