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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：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-BAH-042-RE is a highly integrated single-coil fan driver IC from Melexis, designed for open-loop motor control applications. It features a 40V supply voltage rating and delivers a continuous output current of 2.2A. The device supports both I2C and PWM control interfaces, allowing flexible configuration without firmware development. Housed in a compact 10-DFN (3x3 mm) package, it integrates the full power stage and control logic. Key functional attributes include a frequency generator (FG) signal output and high-speed operation capabilities, making it suitable for consumer electronics and industrial cooling systems requiring robust, space-efficient thermal management solutions.
Feature Summary
- Integrates full power stage and control logic for single-coil fans
- Supports dual control interfaces including I2C and PWM
- Provides configurable speed curves and frequency generator signals
- Enables code-free integration to reduce design complexity
Applications
- Consumer electronics cooling systems
- Industrial drive thermal management
- High-power VGA/GPU heat dissipation in workstations
- Uninterruptible Power Supply (UPS) fan control
Procurement Notes
Verify the specific suffix BAH against the official Melexis datasheet to confirm interface and package variations. Ensure compatibility with existing PCB footprints for the 10-DFN package. Confirm that the 2.2A current limit aligns with the target fan's electrical requirements. Check for any export documentation requirements if sourcing from restricted regions. Validate that the open-loop control mode meets the application's precision needs.
Selection Notes
Select this component when a compact, code-free solution for single-coil fans is required. It is ideal for designs needing both I2C digital control and PWM analog input flexibility. Choose over discrete MCU solutions to minimize external component count and development time. Ensure the 40V rating exceeds the system's maximum operating voltage. Consider the 2.2A limit when sizing for higher power consumption fans compared to lower-current alternatives.
Part Context
This part belongs to the MLX90412 series of single-coil fan drivers, which are engineered for high reliability and ease of integration. The series targets applications demanding efficient thermal management in confined spaces. Unlike multi-phase drivers, this device simplifies the design for standard DC fans. It represents Melexis' approach to reducing software dependency while maintaining precise motor control through hardware-configurable parameters.
Replacement Considerations
Check for direct substitutes within the MLX90412 family, such as the MLX90412KLW-BAA-042-RE, noting differences in pinout or feature sets. Verify pin-to-pin compatibility before swapping. Ensure the replacement maintains the same 10-DFN footprint and 40V/2.2A specifications. Consult the manufacturer's cross-reference guide for validated alternatives.
