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The MLX90411KLD-BAA-049-SP is a low-noise, fully integrated single-coil fan driver manufactured by Melexis Technologies NV. Designed for consumer applications in IT, home appliances, and industrial sectors, it supports supply voltages ranging from 3V to 28V with a maximum output current of 600mA. The device utilizes a UTDFN-6 surface-mount package measuring 2.5x2.0x0.4mm. It features an integrated high-sensitivity Hall effect sensor, adaptive commutation for efficiency, and programmable I2C configuration via onboard EEPROM.
Verify the specific suffix -049-SP against the official Melexis datasheet to confirm the exact electrical characteristics, such as the 600mA current limit and 28V maximum voltage rating. Ensure the UTDFN-6 package dimensions match your PCB footprint requirements. Confirm RoHS compliance status and moisture sensitivity level (MSL) prior to assembly planning.
Select this component for applications requiring a compact solution with low acoustic noise and high efficiency. The UTDFN-6 package is suitable for space-constrained designs. Verify that the required motor current does not exceed the 600mA limit and that the system voltage remains within the 3V to 28V operating range. Consider the I2C programming overhead if complex speed profiles are needed.
This part belongs to the MLX90411 family of single-coil fan drivers. The 'K' designation typically indicates the consumer-grade version, distinct from the automotive-grade 'L' series which carries AEC-Q100 certification. The 'LD' suffix specifies the UTDFN-6 package type, differentiating it from the SOT-23-6 'ZE' package variants available in the same product line.
Direct substitutes include other MLX90411 variants with compatible packages and electrical ratings, such as MLX90411KLD-BAA-048-SP or MLX90411KLD-BAA-047-SP, provided the current limits and voltage clamping specifications align with the design requirements.