LM2596 DC-DC 스텝 다운 모듈
(LM2596 DC-DC Step Down Module)
개요
- 본 제품은 LM2596 칩을 장착한 높은 효율(92%)의 DC-DC 스텝다운 모듈입니다.
- 7-35V를 입력 받아, 1.25V-30V의 전압으로 최대 3A(조절가능)까지 출력이 가능합니다.
- 출력은 매우 안정적으로 50mV이하의 리플을 가집니다.
- 모듈에 있는 포텐셔미터를 이용하여 출력 전류를 조절이 가능합니다.
- 입력과 출력전압 차는 2V이며, 최소 1.23V이상의 차이를 가져야 합니다.
- 모듈에 표기되어 있는 IN-(negative input), IN + (positive input), OUT - (negative output), OUT + (positive output)에 맞추어 반드시 전원을 결선하여야 하며, 결선이 올바르지 않을시 제품이 손상됩니다.
- 배터리 충전이나 LED에 일정한 전류를 공급하고자 할때도 사용이 가능합니다.
특징
- Nature of the module: Non-isolated step-down module
- Rectification: Non-synchronous rectification
- Input voltage: 7V - 35V
- Output voltage: 1.25V - 30V
- Output current: Adjustable, 3A (maximum)
- Transfer efficiency: 92% (maximum)
- Switching frequency: 150KHz
- output ripple: 50mV (maximum) 20M Kbps
- Load regulation: ±0.5%
- Voltage regulation: ±2.5%
- Operating temperature: -40°C to +85°C
- Dimension: 48 x 23 x 14mm (L x W x H)
문서
- Battery charging method:
1. Make sure the battery float voltage and charging current, the module input voltage;
2. Adjustment constant potentiometer, the output voltage is adjusted to about 5V.
3. Use the multimeter (10A current) measuring the output short-circuit current, meanwhile adjust the constant current potentiometer make the output current reaches a predetermined charge current value;
4. Turn lamp current default is 0.1 times charging current (constant current value), if you need to adjust please adjust the turn lamp current potentiometer; (generally doesn't need adjustment)
5. Adjustment constant potentiometer allows the output voltage reaches the float voltage;
6. Connected to the battery and try to charge.
(1,2,3,4,5 steps are for the module input connected to the power supply, output-load battery is not connected.)
- LED constant current driver using method:
1. Make sure that the drive LED operating current and maximum working voltage;
2. Adjustment constant potentiometer, output voltage adjusted to about 5V.
3. Use the multimeter (10A current) measuring the output short-circuit current, meanwhile adjusting the constant current potentiometer allows the output current reaches a predetermined LED working current;
4. Adjustment constant potentiometer allows the output voltage reaches the maximum operating voltage LED;
5. Connect LED, test machine.
(1,2,3,4 steps are module input connect to the power supply, output-load is not connected LED lights.)
연관제품
- 연관제품 1
