Description
The SC504A is a 2-channel, highly integrated, high-efficiency step-up (boost) HB LED driver designed to reduce
the thickness of mid-size LCD displays. It features a wide input voltage range (4.5V to 27V), direct PWM dimming, analog dimming, a flexible output configuration, an I2C interface, and numerous protection features.

FEATUREs
Input Voltage — 4.5V to 27V
Output Voltage — Up to 50V
Step-up (Boost) Controller
  Ultra-Fast Transient Response (<00μs)
  Programmable Switching Frequency
Linear Current Sinks
  2 Strings, up to 240mA/String
  Current Matching ±%
  Current Accuracy ±2%
PWM Dimming
  Direct PWM Dimming, 000:at KHz
  Input Dimming Frequency 00Hz-30kHz
5-Bits Analog Dimming
I2C Interface
  Fault Status — Open/Short LED, UVLO, OTP
Protection Features
  Open/Shorted LED(s) and adjustable OVP
  Over-Temperature and UVLO Shutdown Protection
4mm X 4mm 20-pin QFN Package

APPLICATIONs
Ultrabooks^TM ,  All-in-One  PCs,  Monitors,  Automotive Display Backlighting
Backlighting for Mid-Size Displays