Description

The SC5010 is an 8-channel high-precision, high-efficiency step-up (Boost) LED driver for backlight applications. It features wide input voltage range (4.5V to 27V) , flexible output configuration, wide analog and PWM dimming range, phase shifting and fading. It also features video signal synchronization (VSYNC), I2C interface, and numerous protection features. An optional disconnect p-MOSFET provides true load disconnection and inrush current limiting.

Features

VIN Range — 4.5V to 27V, VOUT Range — Up to 50V

Step-up (Boost) Controller

  Excellent Transient Response

  Programmable Switching Frequency

Linear Current Sinks

  8 Strings, up to 30mA/String

  Current Matching ±1%

  Current Accuracy ±1.5%

PWM Dimming

  String-by-String Phase Shifting

  Input Dimming Frequency 100Hz-30kHz

  User Selectable 9 or 10 Bits Dimming Resolution

  Optional Synchronization to VSYNC/HSYNC Signal

5-bit Analog Dimming

Optional External p-MOSFET Disconnect Switch

  True Load Disconnect and Inrush Current Limiting

I2C Interface

   Fault Status — Open/Short LED, UVLO, OTP

  Device Control — SYNC Freq, PLL Setting

Protection Features

  Open/Shorted LED(s) and adjustable OVP

  Over-Temperature and UVLO Shutdown Protection

4 X 4(mm) 28-pin QFN Package

Applications

Notebook PCs, UMPC, LCD Monitors, and Tablet PCs