RT8575 - Richtek

RT8575 4-String White LED Driver

The RT8575 is a high efficiency LED driver with 40V I/O support. It is designed for LCD panel that employs an array of LEDs as the lighting source. An integrated switch current mode Boost controller drives four strings in parallel and supports up to 18 pieces of LEDs per string. The internal current sinks support typical ±1% current mismatching for excellent.

Features

z Input Operating Voltage Range 4.2V to 24V z 60V Maximum Output Voltage z Adjustable Switching Frequency : 150kHz to 500kHz z Support Up to 4 LED Strings z 50mA to 150mA LED Current Per Channel z 1% Typical LED Current Accuracy z 1% Typical LED Current Matching z Programmable Over Voltage Protection z Built-in Soft-Start, OTP z LED Short/Open Detection z RoHS Compliant and Halogen Free Applications z White LED Backlighting Ordering Information RT8575 Package Type QW : WDFN-16L 5x5 (W-Type) N : DIP-16 (BW) Note : Lead Plating System G : Green (Halogen Free and Pb Free) Richtek products .