TP4056A

Part: TPOWER TP4056

Type: Lithium-ion battery linear charger

Description: A single-cell lithium-ion battery linear charger module with constant current and constant voltage charging modes, a 4.2V set charge voltage, 1A adjustable charging current, and protection against overcharging and over-discharging.

Operating Conditions:

• Supply voltage: 4.5V to 5.5V
• Operating temperature: null
• Full charge voltage: 4.2V
• Charging current: 1A (adjustable)

Absolute Maximum Ratings:

• Max supply voltage: 8V (working input voltage range)
• Max continuous current: 1A (charging current)
• Max junction/storage temperature: null

Key Specs:

• Charge voltage: 4.2V
• Input voltage range: 4.5V to 5.5V
• Max charging current: 1A (adjustable)
• Supported battery type: Single-cell 18650 and other 3.7V Lithium batteries
• Protection features: Overcharging, over-discharging
• Charge termination: Automatic when current drops to 1/10th programmed value
• Package: ESOP-8

Features:

• This module can charge and discharge Lithium batteries safely
• Suitable for 18650 cells and other 3.7V batteries
• Charging current - 1A (adjustable)
• Input Voltage: 4.5V to 5.5V
• Full charge voltage 4.2V
• Protects battery from overcharging and over-discharging
• No verse polarity protection

Applications:

• Solar Chargers
• Digital Cameras
• Portable Home Appliances
• Cell Phones & Tablets
• Charge and Discharge Lithium cells
• Commonly used with 18650 Li-ion batteries
• Power banks
• Used with 5V booster for powering Arduino projects

Package:

• ESOP-8

• This module can charge and discharge Lithium batteries safely
• Suitable for 18650 cells and other 3.7V batteries
• Charging current - 1A (adjustable)
• Input Voltage: 4.5V to 5.5V
• Full charge voltage 4.2V
• Protects battery from overcharging and over-discharging
• No verse polarity protection

• Solar Chargers
• Digital Cameras
• Portable Home Appliances
• Cell Phones & Tablets
• Charge and Discharge Lithium cells
• Commonly used with 18650 Li-ion batteries
• Power banks
• Used with 5V booster for powering Arduino projects

The charging current of the module is set to 1A by default. However, it can be changed by altering the resistor RPROG (R3 on the module) in the circuit diagram. The datasheet for the TP4056 datasheet may be seen below for more information.

TP4056 Application Circuit

The module will automatically stop charging after the Lithium battery is fully charged, and the Red LED will turn off and the Green LED will turn on to signal completion. As illustrated in the pin diagram above, the circuit can now be connected to the Circuit (Load) that must be powered by this battery. The voltage of the battery will be monitored as it is consumed by the circuit by the module (load). When it falls below the crucial level (3.7V), the module will separate your battery from the load and safeguard it from over-discharge.