3pcs DC-DC 5V/2A Charge Discharge Boost Battery Protection Board DD06CVSA 3.7V 4.2V Module

Description: 4 in 1 charge/Discharger(boost)/battery protection/Battery level indicator modules DD06CVSA is a multifunctional 3.7V/4.2V mobile power module,4 in 1 Function: charge, discharge, and battery protection. It is very suitable for DIY mobile power. Charge voltage : DC 4.5V-5.5V(Recommend DC 5V) 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 : -20ﾣ to +85ﾣ Size : 26.7 x 18.1 x 5.7mm Weight: 1.9g Comes with battery protection, do not need 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) 1. In discharge mode (In the charging mode, the KEY function is invalid), the KEY Trigger once, turns on the output; Continuous trigger twice: turn off the output. 2. When the load access, it will automatically turn on the output. But if the load is less than 50MA, the output will be turned off after 30 seconds NOTE: If the output load current is less than 50MA, turn off the output after 30 seconds. If the output load current is greater than 50MA, continuous turn on the output This module is not suitable for uninterruptible power supply(ups). Applications: Battery-powered equipment Lithium Battery 18650 14500 Mobile phone DIY UPS power supply equipment DIY Solar charging MP3/MP4 player Audio equipment Video equipment Portable Devices Bluetooth Wifi Applications MCU development board Packing includes: 3 x DD06CVSA 5V/2.1A Power Module