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The LM3404HVMR/NOPB is a constant current buck regulator designed for high-power LED driving, featuring an input voltage range of 6 V to 75 V DC and a maximum output voltage of 73 V. It delivers a regulated output current of 1 A with a low-level peak capability of 1.2 A. The device operates at a switching frequency between 10 kHz and 1 MHz and supports PWM dimming control. It is housed in an HSOP-8 (SO-PowerPad-8) package and functions within a temperature range of -40°C to +125°C.
Verify the specific suffix 'MR' corresponds to the SO-PowerPad-8 package variant when sourcing. Confirm RoHS compliance status via the manufacturer's official documentation. Ensure the ordering part number matches the required tape-and-reel packaging configuration for automated assembly processes.
Select this component for applications requiring wide input voltage compatibility up to 75 V. The integrated switch simplifies design by reducing external component count. Verify that the thermal performance of the SO-PowerPad-8 package meets the system's heat dissipation requirements under maximum load conditions.
This part belongs to the LM3404HV series from Texas Instruments, specialized for high-voltage LED driver applications. The series utilizes a buck converter architecture to regulate current efficiently. The 'NOPB' designation indicates lead-free construction compliant with environmental standards.
Public confirmed substitute: LM3404HVMAX/NOPB. This alternative shares identical electrical specifications but utilizes an 8-SOIC package instead of the SO-PowerPad-8 form factor.