描述 Description

The SC5012/Q is a 4-channel high-precision, high-efficiency step-up (Boost) HB LED driver designed for backlight 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.

特性 Features

·Input Voltage — 4.75V to 45V
·Output Voltage — Up to 65V
·Step-up (Boost) Controller
·Ulta-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

應(yīng)用 Application

·Medium-sized LCD Panel
·Automotive Car Navigation/Information Display
·LCD Monitors
·Automotive AEC-Q100 Qualified Application

簡介

SC5012Q屬于集成電路（IC）的LED驅(qū)動器。由制造生產(chǎn)的SC5012QLED 驅(qū)動器器件屬于 LED 驅(qū)動器電源管理集成電路 (PMIC) 系列，可通過標(biāo)稱固定電壓的電源為負(fù)載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪ζ骷ぷ鼽c進(jìn)行外部控制，可在照明應(yīng)用中用于實現(xiàn)調(diào)光功能。