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The LM3402HVMRX/NOPB is a high-voltage LED lighting driver IC from Texas Instruments, designed for constant current buck regulation. It supports an input voltage range of 6 V to 75 V and delivers a regulated output current of 500 mA. The device features a switching frequency adjustable between 10 kHz and 1 MHz, with a maximum output voltage capability of 73 V. Operating within a temperature range of -40°C to +125°C, it utilizes an SO-PowerPad-8 package.
Verify the specific suffix 'R' indicates reel packaging when sourcing. Confirm RoHS compliance status as indicated by the '/NOPB' designation. Ensure the supplier provides official datasheets matching the LM3402HV series specifications. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Check for any obsolescence notices or lifecycle changes directly from Texas Instruments before finalizing procurement plans.
Select this component for designs requiring high input voltage tolerance up to 75 V. The 500 mA output current suits medium-power LED strings. Consider the SO-PowerPad-8 package for thermal management requirements. Verify that the required switching frequency falls within the 10 kHz to 1 MHz adjustable range. Ensure the application does not exceed the 73 V maximum output voltage limit.
This part belongs to the LM3402HV family of high-voltage LED drivers. It shares functional similarities with other members like the LM3402HVMM but differs in packaging and tape-and-reel configuration. The family is characterized by integrated switches and PWM dimming capabilities for efficient LED control in non-isolated topologies.
LM3402HVMM/NOPB is listed as a direct substitute for the obsolete LM3402HVMM variant.