배터리 충전 및 방전 통합 모듈  3.7V 4.2V 리튬배터리 부스터 

5V DC 전원을 공급하며 리포배터리를 충전하거나 방전시킵니다.

모듈에 장착된 스위치는 출력을 on/off 할 수 있습니다.

과전류, 과정압, 쇼튜보호, 과열보호 기능을 가지고 있으며 4개의 상태표시 LED로 확인가능합니다.

모듈 사이즈 : 38mm/15" * 19mm/0.75" * 9.5mm/0.37"(길이*폭*높이)

• Charging voltage: DC 4.5V-5.5V (recommended DC 5V)
  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: 96% maximum
  Output voltage: 5V
  Output current: 0-2.1A;
  Ambient temperature: -20° to +85°
  Module with lithium battery protection function (for lithium battery 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
  VIN: The correct input of the charging port + (DC4.5V-5.5V (recommended DC 5V)
  GND: negative input of the charging port -
  GND: Lithium battery -
  BAT: Lithium battery +
  GND: Output negative output -
  VOUT: Output positive output +
  KEY: Output enable trigger port (low pulse trigger)
• Note
  In the discharge mode (the charging mode KEY function is invalid), the KEY port is triggered once, and the output is turned on; the KEY port is continuously triggered twice, and the output is turned off.
  When the load is first connected, the output will be automatically turned on. If the small fish 50MA is loaded, the output will be turned off after 30 seconds; if the load is greater than 50MA, the output will be continuously turned on.
   Allow one side to discharge while charging (Note: this is the output voltage >4.7/<5V)