TPS92381
- 3-, 4-Channel 120-mA current
sinks
- 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
- Fault detection and protection
- Fault output
- Input voltage OVP, UVLO and OCP
- Boost block SW OVP and output OVP
- LED open and short fault detection
- Thermal shutdown
The TPS92380, TPS92381 is a highly-integrated, high output power, 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 TPS9238x to avoid disturbance for sensitive frequency band.
The input voltage range for the TPS9238x is from 4.5 V to 40 V . The TPS9238x integrates extensive fault detection features.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS92380, TPS92381 45-V LED Backlight Driver with 3-, 4- Channels datasheet | PDF | HTML | 2021. 5. 6 |
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.