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Product Detailed Parameters
- Description：IC FAN DRIVER 40V 2.2A 10DFN
- 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：I2C, PWM
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：2.2A
- Voltage - Supply：3.5V ~ 32V
- Voltage - Load：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：10-DFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
- Grade：Automotive
- Qualification：-
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Overview
The MLX90412LLW-BAA-042-RE is an automotive-grade, single-coil fan driver integrated circuit manufactured by Melexis. It operates within a supply voltage range of 3.5V to 32V and delivers a maximum output current of 2.2A. The device supports I2C and PWM interfaces for control and includes a frequency generator (FG) output. Designed for open-loop operation with 1/16 step resolution, it features integrated power clamping up to 40V. The component is housed in a 10-lead DFN-WF package and meets AEC-Q100 qualification standards.
Feature Summary
- Integrated single-coil fan driver with built-in high-sensitivity Hall effect sensor
- Supports both I2C digital interface and PWM input for flexible control schemes
- Includes integrated power clamping protection up to 40V to handle back-EMF
- Features programmable frequency generator output for speed monitoring
Applications
- Automotive cooling fan systems
- Electric vehicle thermal management blowers
- High-power industrial pump drivers
- HVAC system motor control
Procurement Notes
Verify the specific suffix 'RE' indicates reel packaging when ordering. Confirm that the 40V clamping rating aligns with the target application's voltage requirements. Ensure the open-loop control mode is sufficient for the intended use case, as closed-loop options may require different variants. Check for any export documentation requirements if shipping from restricted regions.
Selection Notes
Select this part for applications requiring robust automotive reliability and high current drive capabilities. The 2.2A output suits larger fans or pumps where lower-current alternatives are insufficient. Consider the DFN-WF package for compact board layouts. Verify that the 1/16 step resolution meets the acoustic noise requirements, as finer steps might be needed for ultra-quiet operation.
Part Context
This component belongs to the MLX90412 series of intelligent fan drivers designed specifically for automotive environments. It integrates sensing, control, and power stages into a single chip, reducing external component count. The series is known for its adaptive commutation technology, which optimizes efficiency and reduces acoustic noise across the entire operating range.
Replacement Considerations
The MLX90412LLW-BAA-042-SP is the bulk-packaged equivalent of this reel-part. Both share identical electrical characteristics and functionality. When replacing, ensure the new unit matches the required packaging format for the assembly line process.
