Description

The SC5012/Q is a 4-channel high-precision, high-efficiency step-up (Boost) HB LED driver designed for back light applications. It features wide input voltage range (4.75V to 45V) , flexible output configuration, wide analog and PWM dimming range, phase shifting, optional fading,

external boost controller frequency synchronization (FSYNC), I2C interface, and numerous protection features.

Features

Input Voltage — 4.75V to 45V

Output Voltage — Up to 65V

Step-up (Boost) Controller

Ultra-Fast Transient Response

Programmable Switching Frequency

External Sync Frequency for Boost Controller

Linear Current Sinks

4 Strings, up to 150mA/String

Current Matching ±1

Current Accuracy ±2

PWM Dimming

String-by-String Phase Shifting

Dimming Frequency 100Hz-30kHz

User Selectable 9 or 10 Bits Dimming Resolution

Optional Synchronization to VSYNC/HSYNC Signal

External Frequency Synchronization, FSYNC

8-bit Analog Dimming

I2C Interface

Fault Status — Open/Short LED, OTP

Device Control: SYNC Freq, PLL Setting

Protection Features

Open/Shorted LED(s) and adjustable OVP

Over-Temperature

4mm X 4mm 24 Ld QFN Package

AEC-Q100 Qualified Version Available

Applications

Medium-sized LCD Panel

Automotive Car Navigation/Information Display

LCD Monitors

Automotive AEC-Q100 Qualified Application



SC5012属于集成电路（IC） > LED 驱动器。Semtech Corporation制造生产的SC5012LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。