念慈菴

3.7V lithium battery charging module-TP4056

Overview

Features

Up to 1A charging current
4.2V preset charging voltage with accuracy up to ±1%
Charging status, no battery status indication
Under voltage lockout, automatic recharging

product description

The module uses the TP4056 chip as the core, which can realize constant current/constant voltage charging of a complete single- cell lithium-ion battery. The charging current I = 1200/R1 = 1A (when the input power is sufficient). The module is equipped with a charging indicator light and a standby indicator light. When charging, the charging indicator LED1 (red) is on; when fully charged, LED1 goes off and the standby indicator LED2 (green) is on; when there is no battery connected, LED2 is on and LED1 starts with 1 Flashes at a frequency of ~4S. The module has an undervoltage lockout function and an automatic recharge function. When the input power supply VCC<3.7V, the TP4056 is in shutdown mode; after charging is completed, when the battery voltage drops to 4.05V (roughly corresponding to 80% of the battery capacity below 90%), the charging cycle begins again .

Pin function table

symbol	P1	P2	P3	P4
describe	Mini-USB power input port	XH2.54 charging port	Power supply positive input interface	Negative power input interface

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-23 10:44:52

Dual-port RAM read and write
Environment: WINCE 5.0 Tool: EVC 4.0 Bus: ISA In addition to using third-party tools such as WINDRIVER, is it possible to access the dual-port RAM of an ISA board?
Question about critical warning
Recently, a critical warning appeared in the program, but I don't know how big the risk is. I beg for an answer. Critical Warning: output pin "LVDS_C" (external output clock of PLL "pll1:inst12|altpll
LM3 Development Notes_8. Serial Port Server of Telnet Protocol
It's almost the end of the year, and I'm very busy with the project. I haven't been here for a long time. Today I took some time to organize the Telnet protocol part of the serial port server I made u
Discussion on TI DSP application technology [Repost]
1. Clock and power supply Q: What aspects should be paid special attention to in the power supply design and clock design of DSP? Is it better to use active or passive external crystal oscillator? A:
2440CAM camera data transmission problem
I am using 2440CAM interface, the data format is 16bit RGB565, 8-bit data channel, what are the 8-bit data transmitted on a falling edge of PCLK? My understanding is: the 8-bit is R5+G3, and the next
MPS430F149 MCU_Wireless transmission module based on MSP430 MCU.c
#include "Msp430X14X.h" #define CEBIT0 #define CSBIT1 #define PWR_UPBIT3 #define ADDR_INDEX 8 #define ADDR_COUNT 4 void CE_HI(void); void CE_LO(void); void CS_HI(void); void CS_LO(void); void PWR_UP_H

Datasheet More

Circuits More