LM3429
- LM3429-Q1 is AEC-Q100 Grade 1 Qualified for
Automotive Applications - VIN Range From 4.5 V to 75 V
- Adjustable Current Sense Voltage
- High-Side Current Sensing
- 2-Ω, 1-A Peak MosFET Gate Driver
- Input Undervoltage Protection
- Overvoltage Protection
- PWM Dimming
- Analog Dimming
- Cycle-by-Cycle Current Limit
- Programmable Switching Frequency
- Low Profile 14-lead HTSSOP Package
- Thermal Shutdown
The LM3429 is a versatile high voltage N-channel MosFET controller for LED drivers. It can be easily configured in buck, boost, buck-boost and SEPIC topologies. This flexibility, along with an input voltage rating of 75V, makes the LM3429 ideal for illuminating LEDs in a very diverse, large family of applications.
Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible. The LM3429 uses Predictive Off-time (PRO) control, which is a combination of peak current-mode control and a predictive off-timer. This method of control eases the design of loop compensation while providing inherent input voltage feed-forward compensation.
The LM3429 includes a high-voltage startup regulator that operates over a wide input range of 4.5 V to 75 V. The internal PWM controller is designed for adjustable switching frequencies of up to 2 MHz, thus enabling compact solutions. Additional features include analog dimming, PWM dimming, overvoltage protection, undervoltage lock-out, cycle-by-cycle current limit, and thermal shutdown.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM3429/-Q1 N-Channel Controller for Constant Current LED Drivers datasheet (Rev. H) | PDF | HTML | 2014/11/04 |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| Technical article | Driving LEDs: topology matters | PDF | HTML | 2016/02/26 | |
| Application note | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 2013/05/03 | ||
| EVM User's guide | AN-1969 LM3424 Boost Evaluation Board (Rev. A) | 2013/05/03 | ||
| EVM User's guide | AN-1985 LM3429 Buck-Boost Evaluation Board (Rev. C) | 2013/05/03 | ||
| EVM User's guide | AN-1986 LM3429 Boost Evaluation Board (Rev. B) | 2013/05/03 | ||
| Application note | AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) | 2013/04/23 | ||
| User guide | MR16 or PAR38 LED Bulb Ref Design w/the LM3429 LED Driver User Guide | 2012/01/27 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LM3429BKBSTEVAL — LM3429 - N채널 컨트롤러 LED 드라이버 벅 부스트 평가 보드
This wide range evaluation board showcases the LM3429 NFET controller used with a buck-boost current regulator. It is designed to drive 4 to 8 LEDs at a maximum average LED current of 1A from a DC input voltage of 10 to 70V.
The evaluation board showcases most features of the LM3429 including PWM (...)
LM3429BSTEVAL — LM3429 - N채널 컨트롤러 LED 드라이버 부스트 평가 보드
This evaluation board showcases the LM3429 NFET controller used with a boost current regulator. It is designed to drive 9 to 12 LEDs at a maximum average LED current of 1A from a DC input voltage of 10 to 26V.
The evaluation board showcases most features of the LM3429 including PWM dimming, (...)
MR16 or PAR38 LED Bulb Ref Design w/the LM3429 LED Driver CAD Files
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTSSOP (PWP) | 14 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.