MIC4802YME-TR

LED Driver IC Overview

The MIC4802YME-TR is a high-efficiency, single-channel linear White LED driver manufactured by Microchip Technology. It provides a constant current output of 800mA for driving high-power WLEDs. The device supports ultrafast PWM dimming control and operates within a supply voltage range of 3V to 5.5V. It features an internal switch for improved power management efficiency. The component is housed in an 8-SOIC-EP package with exposed pad and operates across a junction temperature range of -40°C to +125°C.

LED Driver IC Feature Summary

• Ultrafast PWM dimming control capability
• High-efficiency linear regulation design
• Integrated internal switching mechanism

LED Driver IC Applications

• General lighting systems
• White LED backlighting
• Portable electronic illumination

LED Driver IC Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when sourcing components. Confirm the manufacturer designation as Microchip Technology, noting historical Micrel branding in older documentation. Ensure the 8-SOIC-EP package type matches the target PCB footprint requirements. Check RoHS compliance status against current environmental regulations before finalizing procurement decisions.

LED Driver IC Selection Notes

Select this component for applications requiring precise constant current drive for single high-power WLEDs. The linear topology suits designs where simplicity and low noise are prioritized over extreme efficiency at high voltage drops. Ensure the input voltage remains within the 3V to 5.5V operational window. Consider the thermal performance of the SOIC-EP package for heat dissipation needs in enclosed spaces.

LED Driver IC Part Context

This part belongs to the MIC4802 family of single-channel WLED drivers. It serves as a direct replacement for previous Micrel-branded versions following corporate acquisitions. The device integrates linear regulation with PWM control, distinguishing it from switching regulators. It is designed specifically for white LED applications rather than multi-color or RGB configurations.

LED Driver IC Replacement Considerations

Direct substitutes include other single-channel linear WLED drivers from Microchip or Micrel with similar 800mA output capabilities. Verify pin compatibility and thermal characteristics when cross-referencing with generic LED driver ICs. Ensure any alternative supports the required ultrafast PWM frequency specifications.