LT3799IMSE-1#TRPBF

LED Driver IC Overview

The LT3799IMSE-1#TRPBF is an isolated flyback controller with active power factor correction designed for driving LEDs. It operates as an AC-DC offline switcher in a 16-lead MSOP-EP package. Key electrical parameters include a fixed switching frequency of 300 kHz, a maximum operating temperature of +125°C, and a minimum operating temperature of -40°C. The device features a 10 V output voltage capability and supports adjustable output current. It draws a typical operating supply current of 70 µA at an 18 V supply voltage. The component utilizes critical conduction mode operation to enhance efficiency in LED applications.

LED Driver IC Feature Summary

• Integrated active power factor correction for improved line regulation
• Critical conduction mode operation for high efficiency
• Isolated flyback topology suitable for offline LED drivers

LED Driver IC Applications

• Offline LED lighting systems
• AC-DC power conversion for solid-state lighting
• Triac dimmable LED drivers

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. or its predecessor Linear Technology. Check RoHS compliance status directly from the official datasheet. Ensure the part number matches the exact pinout and thermal pad requirements for your PCB layout. Validate availability through authorized distributors as stock levels fluctuate.

LED Driver IC Selection Notes

Select this component for designs requiring integrated PFC in an isolated flyback architecture. The 300 kHz switching frequency allows for compact magnetic components. Ensure the input voltage range matches the offline AC source. Verify that the 16-lead MSOP-EP package fits the thermal and spatial constraints of the enclosure. Consider the 70 µA supply current for low-power standby requirements.

LED Driver IC Part Context

This part belongs to the LT3799 family of isolated flyback controllers. It is specifically engineered for LED driving applications where power factor correction is mandated. The IMSE-1 designation specifies the industrial temperature range and the specific pin configuration for the EP (exposed pad) package variant.

LED Driver IC Replacement Considerations

Direct substitutes may include other LT3799 variants with different output configurations or packaging options. Cross-reference the pinout and thermal characteristics carefully. Verify that any replacement maintains the 300 kHz switching frequency and active PFC functionality required by the design.