MAX31840ATA+T

LED Driver IC Overview

The MAX31840ATA+T is a DC-DC step-up (boost) LED driver IC manufactured by Analog Devices Inc. It operates within a supply voltage range of 6.5V to 26V and features an internal switch. The device provides one output channel with a maximum output current of 1A and a maximum output voltage of 32V. It utilizes a switching frequency of typically 700kHz and supports dimming functionality. The component is housed in an 8-pin WDFN package with an exposed pad, designed for surface-mount applications in power management systems.

LED Driver IC Feature Summary

• Integrated boost topology with internal switch for efficient LED driving
• Supports analog or PWM dimming control for brightness regulation
• Compact 8-pin WDFN package with exposed thermal pad for improved heat dissipation

LED Driver IC Applications

• 12V MR16 lighting systems
• General-purpose LED lighting drivers
• Low-voltage LED illumination modules

LED Driver IC Procurement Notes

Verify the exact suffix 'ATA+T' against official Analog Devices documentation to confirm pinout and electrical specifications. Ensure the procurement source provides valid traceability for the '+T' tape-and-reel packaging format. Cross-reference the manufacturer part number with authorized distributor catalogs to avoid counterfeit components and ensure compliance with RoHS standards.

LED Driver IC Selection Notes

Select this component when designing constant-current LED drivers requiring a boost converter topology from a 6.5V to 26V input range. It is suitable for applications needing up to 1A output current at voltages up to 32V. Consider the 700kHz switching frequency for inductor size trade-offs and the 8-pin WDFN package for space-constrained PCB layouts requiring thermal management via the exposed pad.

LED Driver IC Part Context

This part belongs to the Maxim Integrated LED driver family, specifically designed for high-efficiency lighting applications. It integrates the necessary control logic and power switches into a single compact package, simplifying the design of isolated or non-isolated LED drivers. The device is part of Analog Devices' portfolio following the acquisition of Maxim Integrated, maintaining compatibility with existing Maxim design ecosystems.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided reference data. Engineers should consult official Analog Devices documentation for direct replacements or evaluate alternative boost LED drivers with similar electrical characteristics and package dimensions.