리포 배터리 충전/방전 모듈 -5V 출력
(Battery Charge & Discharge Module with LED Indicator)
개요
- 본 제품은 리포 배터리 충전/방전 모듈 -5V 출력입니다.
- 3.7V 리튬폴리머 배터리를 연결하면 5V 출력(최대 2A)를 내보낼 수 있는 제품입니다.
- 충전과 방전을 동시에 수행할 수 있습니다.
- 보드상에는 배터리 잔량을 표시하는 4개의 LED가 있으며 LED 하나가 25% 잔량을 의미합니다.
- 측면의 키 버튼을 이용하여 충전과 방전 모드 선택이 가능합니다.
특징
-
Charging voltage: DC4.5V-5.5V (recommended DC5V)Charging current: 0-2.1ACharging quiescent current: 100uAFull voltage: 4.2V ± 1%Discharge current: 0-3.5ADischarge quiescent current: 50uADischarge efficiency: up to 96%Output voltage: 5VOutput current: 0-2.1AAmbient temperature: -20~+85°CThe 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 DescriptionVIN: 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)
문서
-
NoteIn 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)Wiring InstructionsWhen the module is plugged in, the output will switch to external power supply (it will be powered off for 0.3s). When charging, the output voltage will be less than >4.7/<5V, depending on the charger load capacity!Trigger mode: low level trigger (ground)Connect to the single-chip microcomputer, if the connection is less than the load KEY, you can connect the single-chip microcomputer for about 20s to give a low level to keep the module working continuously.Indicator Light