LM3405AEVAL
소형 SOT-23 패키지 평가 시 내부 보상을 지원하는 1.6MHz, 1A 정전류 벅 LED 드라이버
LM3405AEVAL
개요
The LM3405A demo board is configured to drive a series string of high power, high brightness LEDs at a forward current of 1A using the LM3405A constant current buck regulator. The board can accept a full input operating range of 3V to 22V. The converter output voltage adjusts as needed to maintain a constant current through the LED array. The LM3405A is a step-down regulator with an output voltage range extending from a VO(MIN) of 205mV (the reference voltage) to a VO(MAX) determined by the maximum duty cycle (typically 94%). It can drive up to 5 LEDs in series at 1A forward current, with the single LED forward voltage of approximately 3.7V (Typical of white, blue, and green LEDs using InGaN technology).
특징
- VIN operating range of 3V to 22V
- Drives up to 5 High-Brightness LEDs in series at 1A
- Thin SOT23-6 package
- 1.6MHz switching frequency
- EN/DIM input for enabling and PWM dimming of LEDs
- 300mΩ NMOS switch
- 40nA shutdown current at VIN = 5V
- Internally compensated current-mode control
- Cycle-by-cycle current limit
- Input voltage UVLO
- Over-current protection
- Thermal shutdown
Applications:
- LED Driver
- Constant Current Source
- Industrial Lighting
- LED Flashlights
- LED Lightbulbs
조명 LED 드라이버
주문 및 개발 시작
평가 보드
LM3405AEVAL/NOPB — 소형 SOT-23 패키지 평가 시 내부 보상을 지원하는 1.6MHz, 1A 정전류 벅 LED 드라이버
LM3405AEVAL/NOPB — 소형 SOT-23 패키지 평가 시 내부 보상을 지원하는 1.6MHz, 1A 정전류 벅 LED 드라이버
기술 자료
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4개 모두 보기
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| 인증서 | LM3405AEVAL/NOPB EU Declaration of Conformity (DoC) | 2019. 1. 2 | |||
| 애플리케이션 노트 | Powering & Dimming High-Brightness LEDs w/ LM3405 Constant-Current Buck Reg (Rev. A) | 2013. 5. 1 | |||
| 사용 설명서 | AN-1685 LM3405A Demo Board (Rev. B) | 2013. 5. 1 | |||
| 사용 설명서 | LM3405A Reference Design for MR16 LED Bulb, 600mA User Guide | 2012. 1. 27 |