LM3432MHX/NOPB

Overview

The LM3432MHX/NOPB is a DC-DC regulator from Texas Instruments designed for backlight applications. It features six independent outputs, each delivering up to 40mA. The device operates within an input voltage range of 6V to 40V and supports both analog and PWM dimming. It utilizes a boost topology and is housed in an HTSSOP-28 package. The component functions across a temperature range of -40°C to 125°C TJ.

Feature Summary

• Supports six independent constant current outputs
• Enables flexible control via analog and PWM dimming interfaces
• Integrates internal power switch for compact design

Applications

• Backlight driver circuits
• Multi-zone LED lighting systems

Procurement Notes

Verify the obsolete status of this specific part number through official Texas Instruments channels before procurement planning. Confirm availability of alternative package types or direct substitutes if production continuity is required. Ensure that the selected replacement maintains compatibility with the original electrical specifications and thermal requirements.

Selection Notes

Select this component for designs requiring multiple regulated LED channels from a single IC. Consider the HTSSOP-28 package constraints and the 6V to 40V input range suitability. Evaluate thermal performance given the 125°C junction temperature limit. Verify that the boost topology aligns with the system's voltage step-up requirements.

Part Context

This part belongs to the LM3432 series of LED drivers. It shares functional similarities with other multi-channel regulators but is distinct in its specific output count and package configuration. The series targets efficient backlighting solutions where space and channel independence are critical design factors.

Replacement Considerations

Texas Instruments lists alternative package types for the LM3432 family. Verify specific substitute part numbers directly from the manufacturer's obsolescence notices to ensure pin-to-pin compatibility and identical electrical characteristics.