LP8869C-Q1
- AEC-Q100 Qualified for automotive applications:
- Device temperature grade 1:
–40°C to +125°C, TA
- Device temperature grade 1:
- 3-, 4-Channel 120-mA LED driver for automotive LCD
display
- High dimming ratio of 10 000:1 at 100 Hz
- Current matching 1% (typical)
- LED String current up to 120 mA per channel
- Outputs can be combined externally for higher current per string
- Integrated boost and SEPIC converter for LED
string power
- Input voltage operating range 4.5 V to 40 V
- Output voltage up to 45 V
- Integrated 3.3-A Switch FET
- Switching frequency 300 kHz to 2.2 MHz
- Switching synchronization input
- Spread spectrum for lower EMI
- Protection and fault detection
- Fault output
- Input voltage OVP, UVLO
- Boost OVP
- SW OVP
- LED Open and short fault detection
- Thermal shutdown
The LP8867C-Q1, LP8869C-Q1 is an automotive highly-integrated, low-EMI, easy-to-use LED driver with DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four or three high-precision current sinks that can be combined for higher current capability.
The DC-DC converter has adaptive output voltage control based on the LED forward voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the LP886xC-Q1 to avoid disturbance for sensitive frequency band.
The input voltage range for the LP886xC-Q1 is from 4.5 V to 40 V to support automotive stop, start and load dump condition. The LP886xC-Q1 integrates extensive fault detection features.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LP8867C-Q1, LP8869C-Q1 Low EMI Automotive LED Driver with 4-, 3- Channels datasheet | PDF | HTML | 2019. 3. 15 | |
| 기능 안전 정보 | 자동차 및 산업 분야의 기능적 안전성 인증 간소화 | Download English Version | 2020. 6. 9 | ||
| 기능 안전 정보 | LP8867C-Q1, LP8869C-Q1 Functional Safety FIT Rate and Failure Mode Distribution | 2020. 1. 27 | |||
| 애플리케이션 노트 | Some Guidelines and Tips for the LED Driver Application | 2019. 8. 14 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LP8867Q1EVM — 차량용 조명을 위한 4채널 LED 드라이버 평가 모듈
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTSSOP (PWP) | 20 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.