SC5012AQMLTRT

Overview

The SC5012AQMLTRT is a high-efficiency, four-channel step-up (Boost) HB LED driver designed for backlight applications. It features an input voltage range of 4.75V to 45V and supports output voltages up to 65V. Each channel provides linear current sinks with up to 150mA per string, maintaining ±1% current matching and ±2% accuracy. The device includes I2C control, phase-shifted PWM dimming with user-selectable 9 or 10-bit resolution, and frequencies from 100Hz to 30kHz. It operates within a temperature range of -55°C to +125°C and is housed in a 4mm x 4mm 24-lead QFN package.

Feature Summary

• Four-channel high-precision Boost LED driver with flexible output configuration
• I2C interface with phase-shifted PWM dimming and analog dimming capabilities
• AEC-Q100 qualified version available for automotive reliability standards
• Integrated protection features including open/short LED detection and over-temperature shutdown

Applications

• Automotive car navigation and information displays
• Medium-sized LCD panel backlights
• LCD monitors
• Automotive AEC-Q100 qualified applications

Procurement Notes

Verify the specific suffix 'QML' against official Semtech documentation to confirm military-grade qualification requirements. Ensure the ordering part number matches the exact package and tape/reel specifications required for your manufacturing process. Cross-reference the datasheet revision history to confirm compatibility with existing design implementations.

Selection Notes

Select this component when designing systems requiring four independent LED strings with precise current matching. The wide input voltage range accommodates various power supply configurations. Consider the phase-shifting feature to reduce EMI and input capacitance demands. Verify that the thermal performance of the 24-lead QFN package meets the thermal dissipation requirements of the target application environment.

Part Context

This part belongs to the SC501 series of high-efficiency LED drivers from Semtech. It shares architectural similarities with the SC5010 but offers four channels instead of eight. The SC5012 family is optimized for applications requiring high brightness uniformity and flexible dimming control through digital interfaces.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the available documentation. Consult Semtech directly for qualified alternatives or cross-reference with the SC5012BQ or SC5012Q variants if non-military grade specifications are acceptable.