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Product Detailed Parameters
- Description：IC FAN DRIVER 40V 1.5A 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：Fan Motor Driver
- Current - Output：2.2A
- Voltage - Supply：3.5V ~ 32V
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：10-DFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The MLX90412KLW-BAA-045-RE is an automotive-grade single-coil fan driver from Melexis, designed for open-loop speed control applications. It integrates a high-sensitivity Hall effect sensor and power stage within a compact 10-DFN (3x3) package. The device supports supply voltages up to 40V and delivers a maximum output current of 1.5A. Key interfaces include I2C for configuration and PWM for speed control, with feedback provided via a frequency generator (FG) output. It features integrated power clamping and adaptive commutation for efficient operation.
Feature Summary
- Integrated single-coil fan driver with built-in Hall sensor for precise commutation
- Supports open-loop speed control via PWM input with programmable minimum point transfer curve
- Includes integrated power clamping to protect against back-EMF without external TVS diodes
- Configurable frequency generator output for rotational speed detection
Applications
- Automotive cooling fan control
- Blower motor drive in HVAC systems
- Pump control in thermal management modules
Procurement Notes
Verify the specific suffix -045-RE against the official datasheet to confirm pinout and electrical characteristics match your design requirements. Confirm RoHS compliance status and moisture sensitivity level (MSL) ratings prior to PCB assembly planning. Check for any export restrictions or additional documentation required for procurement depending on your region.
Selection Notes
Select this component when an open-loop control strategy is sufficient for the application, eliminating the need for complex closed-loop algorithms. Ensure the load current does not exceed the 1.5A limit and that the supply voltage remains within the 40V rating. Consider the 10-DFN package size constraints during layout design to ensure adequate thermal dissipation.
Part Context
This part belongs to the MLX90412 family of intelligent fan drivers. It is specifically tailored for automotive environments, offering robust protection features and high reliability. The device simplifies system design by integrating sensing, control logic, and power driving capabilities into a single small-footprint solution.
Replacement Considerations
Check for direct cross-references within the MLX90412 series. Verify if alternative suffixes offer different current ratings or package options. No other manufacturers are confirmed as direct replacements based on available public data.
