MAX20051AUD/V+TCLQ

LED Driver IC Overview

The MAX20051AUD/V+TCLQ is a synchronous step-down DC-DC regulator designed for LED driving applications. It integrates a high-side and low-side N-channel power MOSFETs to deliver up to 2A of output current. The device operates with an input voltage range from 4.5V to 65V, supporting wide input supply variations common in automotive and industrial lighting systems. It features a fixed switching frequency of 400kHz, which allows for the use of small external inductors and capacitors. The controller supports both analog and pulse-width modulation (PWM) dimming methods for precise brightness control.

LED Driver IC Feature Summary

• Fully synchronous buck topology with integrated power switches for high efficiency
• Supports both analog and PWM dimming interfaces for flexible brightness control
• Wide input voltage range accommodates various supply conditions
• Fixed 400kHz switching frequency enables compact passive component selection

LED Driver IC Applications

• Commercial lighting systems
• Industrial lighting fixtures
• Automotive exterior lighting modules
• General-purpose LED driver circuits

LED Driver IC Procurement Notes

Verify the specific suffix 'TCLQ' against the manufacturer's official ordering guide to confirm tape-and-reel packaging specifications and temperature grade alignment. Ensure the procurement channel provides valid traceability documentation. Cross-reference the RoHS3 compliance status with current regulatory requirements for the target market. Confirm that the supplier source is authorized to prevent counterfeit components.

LED Driver IC Selection Notes

Select this component when a robust, high-voltage tolerant LED driver is required for series string configurations. The integrated synchronous design reduces external bill-of-materials compared to non-synchronous alternatives. Consider the 400kHz frequency trade-off between size and electromagnetic interference. Evaluate thermal performance requirements based on the TSSOP-EP package thermal resistance characteristics under expected load conditions.

LED Driver IC Part Context

This part belongs to the MAX2005x family of LED drivers from Maxim Integrated, now part of Analog Devices. These devices are engineered for high reliability in demanding environments. The AUD/V designation typically indicates specific temperature ranges and package variants within the product line. The family focuses on simplifying LED power management through integration and robust protection features.

LED Driver IC Replacement Considerations

Direct replacements include other parts within the MAX2005x series such as the MAX20050 or MAX20052, depending on current rating and feature set requirements. Verify pin-to-pin compatibility and electrical parameter overlaps before substitution. Consult the manufacturer's cross-reference tool for validated alternative part numbers.