TPS923654HMDMTR

Overview

The TPS923654HMDMTR is a non-synchronous boost or buck-boost LED driver IC from Texas Instruments. It features an integrated switching FET capable of delivering up to 4 A output current. The device operates with a supply voltage range of 4.5 V to 65 V and supports programmable switching frequencies between 100 kHz and 2.2 MHz. It provides an output voltage capability of 0 V to 63 V within a VSON-14 package. The component supports analog, flexible, hybrid, and PWM dimming methods.

Feature Summary

• Supports boost and buck-boost topologies for versatile LED string configurations
• Integrates cycle-by-cycle over-current protection and thermal foldback mechanisms
• Provides fault output signaling for open and short LED detection

Applications

• General LED lighting systems requiring high current drive
• Automotive exterior lighting applications
• Industrial illumination fixtures

Procurement Notes

Verify the exact part number suffix against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure compatibility with required operating temperature ranges and dimming control interfaces before integration into final designs.

Selection Notes

Select this component when designing circuits that require both step-up and step-down voltage conversion capabilities for LED strings. The integrated switch simplifies design by reducing external component count compared to discrete solutions.

Part Context

This device belongs to the TPS92365x family of high-power LED drivers. It shares functional similarities with the TPS923655 but may differ in specific pinout configurations or secondary features. It serves as a core driver solution for medium-to-high power LED arrays.

Replacement Considerations

The TPS923655HMDMTR is a related variant within the same family offering similar boost/buck-boost functionality. Verify pin-to-pin compatibility and specific feature differences via datasheets before substitution.