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Product Detailed Parameters
- Description：IC FAN DRIVER 40V 330MA SOT23-6L
- Series：-
- Mfr：Melexis Technologies NV
- Package：Tube
- 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：SOT-23-6
- Supplier Device Package：SOT-23-6
- Grade：Automotive
- Qualification：-
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Overview
The MLX90411LZE-BAA-043-SP is an automotive-grade, low-noise single-coil fan driver integrated circuit manufactured by Melexis. It features a fully integrated design with high-sensitivity Hall effect sensors for commutation. The device supports open-loop control and operates within a supply voltage range of 3.2V to 32V. It provides a maximum output current of 800mA and includes integrated power clamping rated at 40V. The component is housed in a SOT-23-6 surface-mount package and is qualified under AEC-Q100 standards for operation across a temperature range of -40°C to 150°C.
Feature Summary
- Fully integrated single-coil fan driver with built-in high-sensitivity Hall effect sensors for precise commutation
- Integrated 40V power clamp capability to handle load dump events without external protection components
- Supports open-loop speed control with configurable dynamic PI settings for stable operation
- Programmable diagnostic outputs including frequency generator (FG) and rotation detection (RD)
Applications
- LED headlight cooling fans in automotive systems
- Seat ventilation fans for passenger comfort
- Sensor cooling fans in electronic control units
- Multimedia GPU cooling fans
Procurement Notes
Verify the specific suffix BAA-043-SP against the official Melexis datasheet to confirm the exact electrical parameters and pinout configuration. Ensure that the SOT-23-6 package dimensions match the target PCB footprint requirements. Confirm AEC-Q100 qualification status is required for the intended automotive application environment. Check for any export documentation restrictions if sourcing from regions with trade controls.
Selection Notes
Select this component when a compact, automotive-rated solution for single-coil fan control is required. The 40V clamp rating makes it suitable for direct 12V battery applications with load dump conditions. Consider the SOT-23-6 package for space-constrained designs. Verify that the 800mA current limit meets the motor's stall and running current requirements. Evaluate the need for programmable FG/RD outputs for system monitoring.
Part Context
This part belongs to the MLX90411 series of intelligent fan drivers designed for automotive thermal management. It complements other Melexis solutions like position sensors and current sensors in complete EV thermal systems. The LZE variant specifically denotes the SOT-23-6 package option within the automotive grade lineup, offering a balance between size and performance for various cooling applications.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. The MLX90411LLD-BAA-043-SP is a related variant using a UTDFN-6 package instead of SOT-23-6. Direct replacement requires verifying package compatibility and ensuring identical electrical specifications.
