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TP4056：A LiPo battery charger IC

Q: What should you pay attention to when you using TP4056?

You should never use the TP4056 as a charger and as a load driver at the same time. When charging the battery, switch off the load, and when loading the battery, switch off the charger. Alternatively use a PMOSFET, a resistor, and a Schottky diode.

Q: Why is the TP4056 ideal for portable applications?

Because it is suitable for SOP package and low external component count.

UTMEL

Published: 07 March 2022 | Last Updated: 07 March 2022

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TP4056

TPOWER

TP4056 datasheet pdf and Unclassified product details from TPOWER stock available at Utmel

Purchase Guide

The TP4056 chip is a lithium-Ion battery charger for a single cell battery, protecting the cell from over and undercharging.

This video is going to explor cheap TP4056 Modules

Exploring Cheap TP4056 Modules

Catalog

TP4056 description

The TP4056 is a single cell lithium-ion battery constant-current/constant-voltage linear charger. The TP4056 is ideal for portable applications due to its SOP package and low external component count. Furthermore, the TP4056 is compatible with USB and wall adapters.

Because of the internal PMOSFET architecture, no blocking diode is required, and the circuit prevents negative charge current. Thermal feedback controls the charge current in order to keep the die temperature low during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current is externally programmable using a single resistor. When the charge current falls to one-tenth of the programmed value after the final float voltage is reached, the TP4056 automatically terminates the charge cycle.

TP4056 feature

·Programmable Charge Current Up to 1000mA

·No MOSFET, Sense Resistor or Blocking Diode Required

·Complete Linear Charger in SOP-8 Package for Single Cell Lithium-Ion Batteries

·Constant-Current/Constant-Voltage

·Charges Single Cell Li-Ion Batteries Directly from USB Port

·Preset 4.2V Charge Voltage with 1.5% Accuracy

·Automatic Recharge

·two Charge Status Output Pins

·C/10 Charge Termination

·2.9V Trickle Charge Threshold (TP4056)

·Soft-Start Limits Inrush Current

·Available Radiator in 8-Lead SOP Package, the Radiator need connect GND or impending

TP4056 connections

The following diagram shows a typical setup (from the datasheet). The block diagram also shows the TP456 pinout for the 8 pin SMD device.

application circuit.jpg

The two status LEDs (CHRGn, STDBYn), the battery connection (BAT), the current control connection (PROG), and the TEMP connection are all visible here. Some LI batteries contain an internal thermistor, which can be connected as shown above. In most breakout boards, TEMP is not used and is connected to the Ground.

TP4056 Alternatives

DP4056,LTC4056

TP4056 package description

ESPO

ESPO封装.jpg

EMSOP

EMSOP封装.jpg

Specifications

TPOWER TP4056 technical specifications, attributes, parameters and parts with similar specifications to TPOWER TP4056.

Type
Parameter
Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
ESOP-8
Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tape & Reel (TR)
RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
RoHS Compliant

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Frequently Asked Questions

What is the TP4056?

The TP4056 chip is a lithium-Ion battery charger for a single cell battery, protecting the cell from over and undercharging. It has two status outputs indicating charging in progress and charging complete. It also has a programmable charge current of up to 1A.

What should you pay attention to when you using TP4056?

You should never use the TP4056 as a charger and as a load driver at the same time. When charging the battery, switch off the load, and when loading the battery, switch off the charger. Alternatively use a PMOSFET, a resistor, and a Schottky diode.

How many pins does TP4056 have?

8.

Why is the TP4056 ideal for portable applications?

Because it is suitable for SOP package and low external component count.

What are the TP4056 compatible with?

USB and wall adapters.

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TP4056

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