Overview:

• Charge and Discharge Protection

• Low level trigger

• Short Circuit Protection

Description:

This is a boost circuit to get 5V 2A output from a single Lithium Ion cell ( 3.7V/4.2V). It also has a harge and discharge protection  function, so it will prevent the cell from being over charged or over discharged.

Features:

• Trigger mode: low level trigger (ground)

• The module comes with a lithium battery protection function (the lithium battery does not need to have a protection board, it does not matter if it has a protection board)

• Over-current protection (OCP) / Overvoltage protection  (OVP) / Short Circuit Protection (SCP) / Over-temperature protection (OTP)

Specifications:

• Dimension: 25 * 16 * 4mm

• Charging voltage: DC 4.5V-5.5V (DC 5V recommended)

• Charging current : 0-2.1A

• Charging quiescent current : 100uA

• Full voltage: 4.2V+-1%.

• Discharge current: 0-2.4A;

• Discharge quiescent current : 50uA

• Discharge efficiency: up to 96%

• Output voltage: 5V

• Output current: 0-2.4A;

• Ambient temperature: -20 degree to +85 degree

Application:

• This module protects the Lithium Batteries from over charge / discharge and short circuit.

Pin Description:

• VIN : Charge port positive input +

• GND : Charger Negative Input -

• BAT : Lithium Battery +

• GND : Lithium Battery -

• GND : Output negative output -

• VOUT: Output Positive Output +

• KEY : Output Enable Trigger Port (Low Pulse Trigger)

Package Includes:

• 1 x 5V 2A Charging Discharging Protection Integrated Boost Module 3.7V/4.2V Lithium Battery