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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-BAB-046-RE is a low-noise, integrated single-coil fan driver manufactured by Melexis Technologies NV. Designed for automotive applications, it features an integrated high-sensitivity Hall effect sensor and supports supply voltages from 3.2V to 32V with a maximum load voltage of 40V. The device provides an output current limit of 660mA and operates within a junction temperature range of -40°C to +150°C. It utilizes a 6-pin UTDFN (2.5x2mm) surface-mount package and holds AEC-Q100 qualification.
Feature Summary
- Integrated high-sensitivity Hall effect sensor for precise speed detection
- Adaptive commutation control for optimized efficiency and low acoustic noise
- Built-in power clamp protection for system robustness
- Configurable open-loop or closed-loop speed control via I2C interface
Applications
- Automotive cooling fan systems
- Blower motor control in HVAC units
- Liquid pump drivers requiring low noise operation
Procurement Notes
Verify the specific suffix BAB against the official Melexis datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure compatibility with the 6-UTDFN footprint during PCB layout. Confirm that the 660mA current limit aligns with the connected fan's operational needs. Check for any export restrictions or additional documentation required for procurement depending on your region.
Selection Notes
Select this component when designing automotive-grade fan drivers requiring low acoustic noise and high reliability. The integrated Hall sensor eliminates external components, reducing board space. Consider the 660mA current limit and 40V load voltage rating to ensure adequate headroom for the target motor. The UTDFN-6 package suits compact designs where thermal performance and size are critical constraints.
Part Context
This part belongs to the MLX90411 family of single-coil fan drivers. It is specifically tailored for automotive environments, distinguishing itself from consumer variants through its extended temperature range and AEC-Q100 certification. The device integrates control logic, power stages, and sensing capabilities into a single compact solution.
Replacement Considerations
Consult the official Melexis documentation for direct cross-references. Verify that any substitute maintains the same 6-UTDFN package dimensions and pin configuration to ensure mechanical compatibility without redesigning the PCB footprint.
