SC445TETRT

Overview

The SC445TETRT is a high-efficiency integrated LED driver designed for four strings of LEDs. It operates with a constant current output of 150mA per string and supports an input voltage range from 3V to 28V. The device utilizes a boost topology and features a switching frequency of 1.2MHz. It is housed in a TSSOP-16 package and is rated for operation between -40°C and +85°C.

Feature Summary

• Integrated high-efficiency boost driver architecture
• Constant current regulation for multiple LED strings
• Wide input voltage compatibility

Applications

• Portable lighting devices
• Flashlight applications
• High-brightness LED arrays

Procurement Notes

Verify the specific suffix 'TETRT' against official Semtech documentation to confirm tape-and-reel packaging and pinout configuration. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and supply chain integrity before procurement.

Selection Notes

Select this component when designing circuits requiring independent control of four LED strings with fixed current settings. It is suitable for battery-powered systems due to its wide input voltage range and high efficiency. Consider thermal management requirements associated with the TSSOP-16 package during PCB layout.

Part Context

This component belongs to the SC44x series of LED drivers from Semtech, which are optimized for portable applications. The series provides integrated solutions for driving multiple LED strings without external sense resistors, simplifying the design process for manufacturers of handheld lighting equipment.

Replacement Considerations

Consult official cross-reference lists for verified substitutes such as other SC44x variants or equivalent drivers from Semtech. Verify electrical compatibility including current ratings and input voltage ranges before substitution.