# SC442

## 10-Channel, Integrated, High Efficiency 120 White LED Driver

Description

️· Integrated step-up (boost) driver IC for up to 120 WLEDs.
️· Wide input voltage range: 4.5V to 21V.
️· Maximum operating output voltage: 42V.
️· Programmable LED current: up to 30mA per string.
️· Channel-channel current matching: +/- 1%.
️· Disables open or shorted LEDs individually to increase panel life.
️· Accommodates mismatched LED channels with SCPSET resistor.
️· Parallel channels for increased LED current.
️· Unused channels can be disabled.
️· Efficiency: Up to 91%.

Features

️· Integrated 3A switch
️· Low current sink voltage
️· Flexible LED configurations
️· PWM dimming capability (up to 50kHz).
️· Dimming range: >500:1.
️· Switching frequency: 500kHz - 1MHz (programmable).
️· Synchronization pin for parallel device operation.
️· Protection features: Adjustable OVP, Cycle-by-cycle current limit, LED short/open channel disable, Over-Temperature protection.
️· Package: MLPQ-28 lead-free (4mm x 4mm x 0.6mm).
️· WEEE and RoHS compliant.

Applications

️· Automotive LCD Backlighting
️· Desktop Monitors
️· Notebook PCs
️· Portable TVs

Typical Application Circuit

️· VIN: 4.5V - 21V
️· VOUT: Up to 42V