LP8864-Q1
- AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C, TA
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
- Input voltage operating range 3V to 48V
- Four high-precision current sinks
- Up to 200mA DC current for each current sink
- Current matching 1% (typical)
- Dimming ratio 32 000:1 using 152Hz LED output PWM frequency
- Up to 16-bit LED dimming resolution with I2C, or PWM input
- 8 Configurable LED strings configuration
- Auto-phase shift PWM dimming
- 12-bit analog dimming
- Up to 48V VOUT
boost or SEPIC DC/DC controller
- Switching frequency 100kHz to 2.2MHz
- Boost spread spectrum for reduced EMI
- Boost sync input to set boost switching frequency from an external clock
- Output voltage automatically discharged when boost is disabled
- Extensive fault diagnostics
The LP8864-Q1 is an automotive high-efficiency LED driver with boost controller. The Four high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.
The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8864-Q1 to avoid disturbance for AM radio band.
The LP8864-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LP8864-Q1 Automotive Display LED-backlight Driver with Four 200 mA Channels datasheet (Rev. B) | PDF | HTML | 2024. 5. 7 | |
| 애플리케이션 노트 | LP886x-Q1 Feedback Resistor Design Considerations | PDF | HTML | 2021. 5. 12 | ||
| 애플리케이션 노트 | LP8864-Q1, LP8864S-Q1, LP8866-Q1, and LP8866S-Q1 Diagnostic Description and Faul | PDF | HTML | 2020. 7. 16 | ||
| 인증서 | LP8864EVM EU Declaration of Conformity (DoC) | 2020. 6. 4 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LP8864EVM — LP8864-Q1 4-채널 오토모티브 디스플레이 LED 드라이버 평가 모듈
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTSSOP (DCP) | 38 | Ultra Librarian |
| VQFN (RHB) | 32 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.