일정 전류 출력 LED 드라이버 모듈
(LED Constant Current Driver Module)
개요
- 본 제품은 LED 및 LED 스트립을 제어하는데 사용하는 일정 전류 출력 LED 드라이버 모듈입니다.
- 6V-16V의 입력 전압을 VCC에 공급하고 DIM핀은 3.3V나 5V 로직으로 제어합니다. 파워 그라운드는 신호 그라운드와 연결하여 줍니다.
- DIM 핀은 디밍 제어를 위해 제공됩니다.
- 디밍은 아날로그 전압(20%-100% of max current by varying voltage from .5V-2.5V) 이나 PWM으로 제어합니다.
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특징
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TinySine LED Driver supports PWM control so long as the signal is above a minimum of ~1.5V and each LED is driven to ~600mA. That current can be reduced by either presenting an analog voltage or a PWM signal to the board. Please check your LED max acceptable current before you feed it with 100% 600mA current. Or you may burned your LED.
You can increase the maximum current of the LED driver board up to 1A per channel; to do so, replace the current sense resistor with smaller values. To calculate the new value for the resistor, use this formula: ILED = 0.1 / Rset. Thus, for a 1A current, you'd want a .1Ω resistor. Don't forget to be wary of current ratings; at 1A, the sense resistor will be dissipating 1/10W, so you probably want a resistor of at least 1/8W rating. The package is a standard 0805.
문서
- Schematic
- Datasheet (AL8805W5)
- Arduino test code