What is it?

DD06CVSA is a multifunctional 3.7V/4.2V Mobile Power Diy module

3 in 1 Function: charge, discharge and battery protection.

Suitable for DIY mobile power.

• Charge voltage : DC 4.5V-5.2V (If the power supply is 5.2V-5.5V, please parallel diodes (eg SS34 SMB))
• Charging current : 0-2.1A
• Charge quiescent current : 100uA
• Full charge voltage : 4.2V+-1%.
• Discharge current : 0-3.5A;
• Discharge quiescent current : 50uA
• Discharge conversion efficiency : maximum 96%
• Output voltage : 5V
• Output current : 0-2.1A;
• Operating ambient temperature : -20° to +85°

Comes with battery protection, no need for extra battery protection board! (if your battery comes with a protective board, it does not matter)

• Overcurrent protection(OCP)
• Overvoltage protection(OVP)
• Short circuit protection(SCP)
• Over temperature protection(OTP)

Pin description:

• 1 VIN : Charging port +
• 2 GND : Charging port -
• 3 BAT : Battery port +
• 4 GND : Battery port -
• 5 GND : Output port -
• 6 VOUT: Output port +
• 7 KEY : Output trigger port(Low pulse trigger) In charging mode the KEY function is invalid

Discharge mode:

• Press the KEY Trigger once, turn on the output
• Trigger twice: turn off the output.

Automatically turn on

• When the load access, it will turn on the output.
• If the load is less than 50MA, the output will be turned off after 30 seconds.