LP8862-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
- Input Voltage Operating Range 4.5 V to 40 V
- Two High-Precision Current Sinks
- Current Matching 1% (Typical)
- LED String Current up to 160 mA per Channel
- Dimming Ratio of 10 000:1 at 100 Hz
- Integrated Boost/SEPIC Converter for LED String Power
- Output Voltage up to 45 V
- Switching Frequency 300 kHz to 2.2 MHz
- Switching Synchronization Input
- Spread Spectrum for Lower EMI
- Power-Line FET Control for Inrush Current Protection and Standby Energy Saving
- Extensive Fault Detection Features
- Fault Output
- Input Voltage OVP, UVLO, and OCP
- Open and Shorted LED Fault Detection
- Thermal Shutdown
- Minimum Number of External Components
The LP8862-Q1 is an automotive high-efficiency, low-EMI, easy-to-use LED driver with integrated DC-DC converter. The DC-DC supports both boost and SEPIC modes of operation. The device has two high-precision current sinks that can provide high dimming ratio brightness control with a PWM input signal.
The boost/SEPIC converter has an adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes power consumption by adjusting the voltage to the lowest sufficient level in all conditions. DC-DC supports spread spectrum for switching frequency and an external synchronization with a dedicated pin. A wide-range adjustable frequency allows the LP8862-Q1 to avoid disturbance for AM radio band.
The input voltage range for the LP8862-Q1 is from 4.5 V to 40 V to support automotive stop/start and load dump conditions. The device supports PWM brightness dimming ratio of 10 000:1 for 100-Hz input PWM frequency. The LP8862-Q1 integrates extensive fault detection features. The device has an option to drive an external p-FET to disconnect the input supply from the system in the event of a fault. This feature also reduces inrush current and standby power consumption.
기술 자료
설계 및 개발
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LP8862Q1EVM — 오토모티브 조명을 위한 LP8862-Q1 2채널 LED 드라이버 평가 모듈
The LP8862Q1EVM evaluation module (EVM) helps designers evaluate the operation and performance of this device. The LP8862Q1EVM uses the LP8862-Q1 to drive up to 2 LED strings (up to 12 LEDs each, 24 LEDs together) for LCD backlighting with high efficiency. Information about output (...)
LP8862-Q1 Unencrypted PSpice Transient Model Package (Rev. B)
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) | 20 | 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
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