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Product Detailed Parameters
- Description：IC FAN DRIVER 40V 660MA 6UTDFN
- Series：-
- Mfr：Melexis Technologies NV
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：800mA
- Voltage - Supply：3.2V ~ 32V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：6-DFN Exposed Pad
- Supplier Device Package：6-UTDFN (2.5x2)
- Grade：Automotive
- Qualification：-
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Overview
The MLX90411LLD-BAI-046-RE is an automotive-grade, low-noise, fully integrated single-coil fan driver manufactured by Melexis Technologies NV. It features a built-in high-sensitivity Hall effect sensor for commutation and supports supply voltages from 3.2V to 32V with a maximum output current of 800mA. The device operates within a junction temperature range of -40°C to 150°C and is housed in a compact 6-UTDFN (2.5x2mm) package. It includes integrated power clamping and diagnostic outputs.
Feature Summary
- Fully integrated single-coil fan driver with built-in Hall sensor
- Adaptive commutation control for low noise and high efficiency
- Integrated power clamp protection against back EMF
- Programmable I2C interface with onboard EEPROM configuration
Applications
- Automotive LED headlight cooling fans
- Vehicle seat ventilation fans
- Sensor cooling applications
- Multimedia GPU cooling systems
Procurement Notes
Verify the specific suffix 'BAI' against official Melexis documentation to confirm pinout and functional parameters, as distributor listings may vary. Confirm AEC-Q100 qualification status and RoHS compliance directly with the manufacturer datasheet before integration into production designs.
Selection Notes
Select this component for applications requiring a compact, low-noise solution for single-coil fans in automotive environments. Ensure the required supply voltage falls within the 3.2V to 32V range and that the load current does not exceed the 800mA limit. Verify compatibility with existing I2C bus architectures for configuration.
Part Context
This part belongs to the MLX90411 family of intelligent fan drivers designed for automotive thermal management. It replaces discrete solutions by integrating sensing, control, and power stages into a small UTDFN package, reducing board space and assembly complexity while meeting stringent automotive reliability standards.
Replacement Considerations
Consult official Melexis substitution guides for verified alternatives. Generic motor drivers lack the integrated Hall sensor and adaptive commutation logic required for direct replacement in low-noise automotive fan applications.
