SC5012QMLTRT

Overview

The SC5012QMLTRT is a high-efficiency LED lighting driver IC manufactured by Semtech. It features four independent output channels with a maximum current of 150 mA per channel. The device utilizes a Boost topology and operates within an input voltage range of 4.5 V to 45 V, supporting output voltages up to 65 V. The switching frequency is programmable from 200 kHz to 2.2 MHz. Control is facilitated via an I2C interface. The component is housed in an MLPQ-24 package and is rated for operation between -40°C and +85°C.

Feature Summary

• Four-channel linear current sink architecture for uniform LED string control
• I2C digital interface for configuration and dimming management
• Programmable switching frequency to optimize efficiency and minimize external component size
• Integrated protection mechanisms including overvoltage and thermal shutdown

Applications

• High brightness LED (HBLED) driver circuits
• General solid-state lighting systems
• Industrial illumination modules

Procurement Notes

Verify the specific suffix 'QML' against official Semtech documentation to confirm qualification standards. Ensure the MLPQ-24 package dimensions match the target PCB layout. Confirm that the 150 mA per channel rating satisfies the load requirements of the intended LED strings. Validate that the operating temperature range meets the environmental constraints of the final assembly.

Selection Notes

Select this component when a multi-channel boost driver with digital I2C control is required. The 150 mA output capability suits applications where moderate current per string is sufficient. The wide input voltage range allows compatibility with various power sources. Consider the MLPQ-24 package for surface mount integration. Verify that the 65 V output limit accommodates the series LED count.

Part Context

This part belongs to the SC501 family of LED drivers from Semtech. The family focuses on high-efficiency power management for lighting applications. The SC5012 variant specifically provides four channels, distinguishing it from other members with different channel counts. The QML suffix typically indicates specific manufacturing or qualification criteria defined by the manufacturer.

Replacement Considerations

Consult official Semtech substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications before replacing. Generic equivalents may not support the I2C interface or exact current ratings.