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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-BAH-046-RE is an automotive-grade, low-noise, fully integrated single-coil fan driver manufactured by Melexis. It features a built-in high-sensitivity Hall effect sensor and supports supply voltages from 3V to 28V with a maximum output current of 600mA. The device utilizes a UTDFN-6 package (2.5x2mm) and is AEC-Q100 qualified for operation between -40°C and 150°C TJ. It offers adaptive commutation, open-loop control, and I2C programmability via onboard EEPROM.
Feature Summary
- Fully integrated single-coil fan driver with high-sensitivity Hall effect sensor
- Adaptive commutation for optimized efficiency and low acoustic noise
- I2C programmable configuration stored in onboard EEPROM
- Integrated power clamp protection
Applications
- Automotive LED headlight cooling fans
- Vehicle seat ventilation fans
- Sensor cooling fans
- Multimedia GPU cooling fans
Procurement Notes
Verify the specific suffix 'BAH' against official Melexis documentation to confirm voltage clamp ratings and pinout compatibility. Ensure the UTDFN-6 package dimensions match the target PCB footprint. Confirm AEC-Q100 qualification status for the specific revision before integration into safety-critical automotive designs.
Selection Notes
Select this component for applications requiring low-noise operation and compact form factors in automotive environments. The 600mA drive capability suits fans under 7W. Consider the 40V clamp version if load dump protection is required without external TVS diodes. Verify I2C interface requirements and EEPROM programming constraints during the design phase.
Part Context
Part of the MLX90411 family of intelligent fan drivers designed for automotive thermal management. This series integrates sensing and driving functions to reduce system complexity and cost compared to discrete solutions.
Replacement Considerations
Consult official Melexis substitution guides for verified alternatives. Generic motor drivers lack the integrated Hall sensor and automotive qualification.
