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Product Detailed Parameters
- Description：IC FAN DRIVER 20V 330MA 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-BAA-023-RE is an automotive-grade, single-coil fan driver integrated circuit manufactured by Melexis. It operates within a supply voltage range of 3.2V to 32V and supports a maximum output current of 800mA. The device utilizes a 6-pin UTDFN package with dimensions of 2.5mm x 2.0mm. It features integrated high-sensitivity Hall effect sensors for commutation and includes programmable protection mechanisms such as overvoltage, overcurrent, and thermal shutdown. Designed for open-loop control applications, it meets AEC-Q100 standards for automotive reliability.
Feature Summary
- Integrated high-sensitivity Hall effect sensor for precise commutation
- Programmable protection against overvoltage, overcurrent, and thermal events
- Supports open-loop speed control with dynamic PI settings
- Compact surface-mount packaging optimized for space-constrained designs
Applications
- LED headlight cooling fans in automotive systems
- Seat ventilation fans
- Sensor cooling fans
- Multimedia GPU cooling fans
Procurement Notes
Verify the specific suffix BAA-023-RE against official Melexis documentation to confirm pinout and electrical characteristics. Ensure compatibility with existing PCB footprints for the 6-UTDFN package. Confirm that the open-loop control mode aligns with system requirements, as closed-loop options may require different variants. Check for any export restrictions or additional documentation required for procurement.
Selection Notes
Select this component when designing automotive thermal management systems requiring low acoustic noise and high efficiency. The 800mA current limit suits fans up to 7W. The 20V clamp version is suitable for 5V regulated supplies, while higher voltage clamps are needed for direct battery connections. Consider the UTDFN package size if board space is limited. Verify that open-loop control meets the application's speed regulation needs.
Part Context
This part belongs to the MLX90411 series of single-coil fan drivers. The 'LLD' suffix indicates the automotive grade variant with AEC-Q100 certification and a UTDFN-6 package. It is designed for harsh automotive environments with extended temperature ranges. The series offers integrated sensing and driving capabilities to simplify design and reduce component count in cooling applications.
Replacement Considerations
Consult official Melexis substitution guides for verified alternatives. Generic motor drivers may lack the integrated Hall sensor and automotive certifications. Ensure any replacement matches the 6-UTDFN footprint and electrical specifications.
