LM3492HCQMHX/NOPB

LED Driver IC Overview

The LM3492HCQMHX/NOPB is a dual-channel, individually dimmable LED driver IC from Texas Instruments. It utilizes a boost topology to drive LEDs with an output current range of 50 mA to 250 mA per channel. The device operates on an input voltage of 4.5 V to 65 V and supports adjustable switching frequencies between 200 kHz and 1 MHz. Packaged in an HTSSOP-20, it is qualified under AEC-Q100 standards for automotive applications. The component functions within a temperature range of -40°C to +125°C and includes features such as PWM dimming, soft start, and thermal shutdown protection.

LED Driver IC Feature Summary

• Dual independent channels allow for individual control and dimming of separate LED loads.
• AEC-Q100 qualification ensures reliability and compliance for automotive electronic environments.
• Integrated boost converter topology simplifies high-voltage LED string driving requirements.

LED Driver IC Applications

• Automotive exterior lighting systems
• Automotive interior ambient lighting
• High-reliability industrial LED drivers

LED Driver IC Procurement Notes

Verify the specific suffix 'Q' indicates AEC-Q100 automotive qualification status against the manufacturer's official datasheet. Confirm the package type matches the required HTSSOP-20 footprint for PCB layout compatibility. Ensure the operating environment meets the specified temperature range and voltage constraints defined in the electrical characteristics table.

LED Driver IC Selection Notes

Select this component when dual-channel independent dimming is required in space-constrained automotive designs. The HTSSOP-20 package offers a compact solution compared to larger alternatives. Consider the 250 mA maximum output current per channel to ensure adequate drive capability for the target LED configuration without exceeding thermal limits.

LED Driver IC Part Context

This part belongs to the LM3492 family of LED drivers, which are designed for flexible lighting control. The HC variant specifically denotes enhanced performance or automotive qualification within the series. It serves as a specialized power management solution for modern vehicle lighting architectures requiring precise current regulation and diagnostic capabilities.

LED Driver IC Replacement Considerations

LM3492HCQMH/NOPB is the tube-packaged equivalent of this reel-part number. Verify if the non-automotive LM3492MHX/NOPB meets the specific environmental requirements, noting the absence of AEC-Q100 certification.