LM3409
- LM3409-Q1 and LM3409HV-Q1 are Automotive Grade Products: AEC-Q100 Grade 1 Qualified
- 2-Ω, 1-A Peak MOSFET Gate Drive
- VIN Range: 6 V to 42 V (LM3409, LM3409-Q1)
- VIN Range: 6 V to 75 V (LM3409HV, LM3409HV-Q1)
- Differential, High-Side Current Sense
- Cycle-by-Cycle Current Limit
- No Control Loop Compensation Required
- 10,000:1 PWM Dimming Range
- 250:1 Analog Dimming Range
- Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
- Low-Power Shutdown and Thermal Shutdown
- Thermally Enhanced 10-Pin, HVSSOP Package
The LM3409, LM3409-Q1, LM3409HV, and LM3409HV-Q1 are P-channel MOSFET (PFET) controllers for step-down (buck) current regulators. They offer wide input voltage range, high-side differential current sense with low adjustable threshold voltage and fast output enable/disable function and a thermally enhanced 10-pin, HVSSOP package. These features combine to make the LM3409 family of devices ideal for use as constant current sources for driving LEDs where forward currents up to 5 A are easily achievable.
The LM3409 devices use constant off-time (COFT) control to regulate an accurate constant current without the need for external control loop compensation. Analog and PWM dimming are easy to implement and result in a highly linear dimming range with excellent achievable contrast ratios. Programmable UVLO, low-power shutdown, and thermal shutdown complete the feature set.
For all available packages, see the orderable addendum at the end of the data sheet.기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LM3409, -Q1, LM3409HV, -Q1 P-FET Buck Controller for High-Power LED Drivers datasheet (Rev. L) | PDF | HTML | 2016. 5. 23 | |
| 기술 문서 | Dimming in switched-mode LED drivers | PDF | HTML | 2018. 8. 13 | ||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | |||
| 백서 | LED Drivers for Automotive Exterior Applications (Rev. B) | 2018. 3. 27 | |||
| 기술 문서 | Color the world with what’s next in RGBW LED light source technology – part 2 | PDF | HTML | 2017. 8. 16 | ||
| 기술 문서 | Color the world with what’s next in RGBW LED light source technology – part 1 | PDF | HTML | 2017. 8. 3 | ||
| 기술 문서 | LED brightness adjustment: high-frequency PWM dimming | PDF | HTML | 2016. 8. 26 | ||
| 애플리케이션 노트 | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 2013. 5. 3 | |||
| 사용 설명서 | AN-1954 LM3409 Demonstration Board (Rev. D) | 2013. 5. 1 | |||
| 애플리케이션 노트 | AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) | 2013. 4. 23 | |||
| 애플리케이션 노트 | Dimming Techniques for Switched-Mode LED Drivers | 2009. 7. 30 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LM3409EVAL — LM3409 데모 보드
This demonstration board showcases the LM3409 PFET controller for a buck current regulator. It is designed to drive 4 LEDs (VO = 15V) at a maximum average LED current (ILED = 1A) from a DC input voltage (VIN = 24V). The switching frequency (fSW = 525 kHz) is targeted for the nominal operating (...)
PMP6024 — 100~240VAC 입력, 60W, 2스트링, PWM 조광 가능 LED 드라이버 레퍼런스 디자인
PMP6024 is an offline, LED driver circuit consisting of an isolated, power-factor corrected, constant output voltage flyback converter followed by two DC/DC buck LED current controllers. It is suitable for indoor or outdoor area lighting applications of 3500-5000 lumens (depending upon LED (...)
TIDA-01415 — 100W, 고해상도, 16비트 색상 조정 가능, 0.15% 조광 가능 RGBW LED 조명 레퍼런스 설계
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| PDIP (NFF) | 14 | Ultra Librarian |
| HVSSOP (DGQ) | 10 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.