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

SC5010属于集成电路（IC） > LED 驱动器。Semtech Corporation制造生产的SC5010LED 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。