2A 5V Charge Discharge Integrated 3.7V 4.2V Lithium Battery Boost Mobile Power Protection Diy Electronic PCB Board Module

• Charging voltage: DC4.5V-5.5V (recommended DC5V)
• Charging current: 0-2.1A
• Charging quiescent current: 100uA
• Full voltage: 4.2V ± 1%
• Discharge current: 0-3.5A
• Discharge quiescent current: 50uA
• Discharge efficiency: up to 96%
• Output voltage: 5V
• Output current: 0-2.1A
• Ambient temperature: -20~+85°C
• The module comes with a lithium battery protection function (for lithium batteries without protection, with protection board)
• Overcurrent protection (OCP)
• Overvoltage protection (OVP)
• Short circuit protection (SCP)
• Over temperature protection (OTP)
• Charge and discharge power level 4 interval indication

Pin description:

1 VIN : Charge port positive input +

2 GND : Charger Negative Input -

3 BAT : Lithium Battery +

4 GND : Lithium Battery -

5 GND : Output negative output -

6 VOUT: Output Positive Output +

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

1 In the discharging mode (the charging mode KEY function is invalid), the KEY port is triggered once and the output is turned on; the KEY port is triggered twice in succession and the output is turned off.

2 The first time you access the load, the output is automatically turned on. If the load is less than 50MA, the output will be turned off after 30 seconds; if the load is greater than 50MA, the output will be continuously turned on.

3 Allow discharge while charging (Note: Output voltage >4.7/<5V at this time)

Applications:

Car charging retrofit

Driving recorder power supply

Mobile power

Portable devices such as mobile phones and tablets

Package:

2A 5V Lithium battery charging protection module