MAX16840ATB+T

LED Driver IC Overview

The MAX16840ATB+T is an LED lighting driver IC optimized for 12 VAC (MR16) and 24 VAC input LED light bulbs. It features a proprietary input-current control scheme ensuring compatibility with most electronic transformers and standard trailing-edge dimmers. The device operates within a 6.5V to 48V input voltage range at a switching frequency of 300 kHz. It provides one output channel in a TDFN-EP-10 package, functioning as a buck, boost, or buck-boost converter. The operating temperature range spans from -40°C to +125°C.

LED Driver IC Feature Summary

• Proprietary input-current control scheme for transformer compatibility
• Supports standard trailing-edge dimming
• Integrated MOSFET for compact design

LED Driver IC Applications

• 12 VAC MR16 LED light bulbs
• 24 VAC input LED lamps
• Applications requiring electronic transformer compatibility

LED Driver IC Procurement Notes

Verify the specific suffix 'ATB' confirms the 10-pin TDFN package and 300 kHz frequency variant. Confirm RoHS compliance status via the manufacturer's official documentation. Check current availability as supply may be limited or discontinued depending on the region and distributor. Ensure the ordering part number matches the required package and temperature grade exactly.

LED Driver IC Selection Notes

Select this component for AC-input LED applications requiring direct compatibility with existing electronic transformers. The integrated MOSFET reduces external component count compared to discrete solutions. Verify that the 300 kHz switching frequency aligns with EMI requirements. Ensure the input voltage range covers the specific AC rectified DC levels of the target application.

LED Driver IC Part Context

This part belongs to the Maxim Integrated LED Lighting Drivers family, specifically designed for retrofitting traditional halogen lamps with LED equivalents. It addresses common issues in AC-driven LED systems such as flicker and transformer interaction. The TDFN-EP-10 package allows for small form-factor designs suitable for bulb replacements.

LED Driver IC Replacement Considerations

Check for updated versions within the MAX16840 series. Verify pinout compatibility if substituting with other single-channel AC LED drivers. Ensure thermal performance meets requirements for the new package if changing form factors.