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Product Detailed Parameters
- Description：IC FAN DRIVER 40V 2.2A 10DFN
- 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：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-BAC-042-SP is an automotive-grade, fully integrated single-coil fan driver manufactured by Melexis Technologies NV. It operates within a supply voltage range of 3.5V to 32V and delivers a maximum output current of 2.2A. The device features I2C and PWM interfaces for control and includes built-in Hall effect sensors for speed feedback. Packaged in a compact 10-DFN (3x3mm) format with exposed pad, it supports junction temperatures from -40°C to 150°C and meets AEC-Q100 standards.
Feature Summary
- Fully integrated driver combining control logic and power stage for single-coil fans
- Built-in high-sensitivity Hall effect sensor for accurate speed monitoring
- Flexible interface support via I2C configuration and PWM input
- Integrated protection mechanisms including over-temperature and over-current safeguards
Applications
- Automotive cabin cooling fan systems
- Engine compartment radiator fans
- Battery thermal management pumps
- High-power LED cooling blowers
Procurement Notes
Verify the specific suffix BAC against official Melexis documentation to confirm pinout and feature set, as variations exist within the MLX90412 family. Confirm availability status as some variants are marked obsolete or restricted. Ensure ESD handling protocols are followed due to the sensitive CMOS technology. Check for RoHS compliance and REACH status prior to integration.
Selection Notes
Select this component when high current drive capability up to 2.2A is required for single-coil applications. The integrated Hall sensor eliminates external components for speed feedback. Choose based on the required supply voltage range and interface preferences between I2C and PWM. Ensure the 10-DFN package fits the PCB layout constraints and thermal requirements of the target enclosure.
Part Context
This part belongs to the MLX90412 series of intelligent fan drivers designed for automotive environments. It replaces discrete solutions by integrating power MOSFETs, control logic, and sensing elements into a single chip. The series is optimized for reliability in harsh automotive conditions, offering robust performance against electrical noise and thermal stress common in vehicle powertrains.
Replacement Considerations
Consult Melexis official substitution guides for direct replacements. Generic equivalents may lack the integrated Hall sensor or specific automotive qualification levels. Verify that any substitute supports the same 2.2A current rating and 32V supply tolerance.
