代理产线

SC5012Q

 2016-06-15

【基本数据】

【产品特性】

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

【产品应用】

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

【文字介绍】

SC5012Q是一款4通道高精度高效率升压 LED驱动器设计用于背光应用。它具有宽输入电压范围(4.75V至45V),灵活的输出配置,宽仿真和PWM调光范围,相移,I2C接口,以及众多保护功能。
该升压控制器,在200kHz的可调开关频率至2.2MHz,可通过动态减少,同时保持LED串的电流精度,输出电压效率最大化。它提供了卓越的电压和无需外部补偿组件负载响应。每个线性电流中的精湛照明均匀度±1%的匹配,每串电流精度为±2%。一个外部电阻调节每串40-150mA的电流。此外,它还采用了9位或10位在从100Hz调光频率到20kHz,同步到同步信号,助推振荡器PWM调光分辨率。串逐串相位移减小了输入/输出电容的需求,减少EMI,并提高调光的线性度。