TP5100 Li-ion / 18650 4.2V(1-Cells) / 8.4V(2-Cells) Battery Charger Protection PCB Board (up-to 2-Amps Peak Current)

Description:

TP5100 is a Lithium battery management chip. It is capable of charging a single lithium-ion cell or two lithium-ion cells wired in series at the same time. It is designed for a double 8.4V / 4.2V single lithium-ion battery.

This Li-ion Battery charging module comes in a small package making it ideal for portable devices. It has an in-built input overcurrent, under-voltage protection, over-temperature protection, short circuit protection, battery temperature monitoring, and reverse battery protection.

Technical Specifications:

• Dual-cell 8.4V/Single-cell 4.2V
• Input voltage: 5V-15V DC 
• Switching frequency: 400kHz
• Red LED: Charging indicator
• Blue LED: Full charge/ No battery indicator
• Both Red/Blue LED off: VIN very low/High-temperature shutdown
• No need for external anti-backflow Schottky diode
• Onboard solder jumper to set 1S/2S mode
• Option for an external bicolor LED

Additional Resources:

• TP5100 8.4V/4.2V  Li-ion Battery Charging Module datasheet
  (https://voltiq.ru/datasheets/TP5100-datashhet.pdf )
• TP5100 1S/2S Li-ion Battery Charger – Quick Review!
  (https://www.codrey.com/electronic-circuits/tp5100-1s-2s-li-ion-battery-charger-quick-review/ )