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Product Detailed Parameters
- Description：IC FAN DRVR 12V PWM 3-18V 10DFN
- Series：-
- Mfr：Melexis Technologies NV
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：Brushed DC
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (2)
- Interface：PWM
- Technology：CMOS
- Step Resolution：-
- Applications：Fan Motor Driver
- Current - Output：600mA
- Voltage - Supply：3.3V ~ 18V
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：10-VFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The MLX90297KLW-AAF-109-RE is a single-chip fan driver designed for driving single-coil brushless DC (BLDC) motors. It integrates a voltage regulator, Hall sensor with offset elimination, and a power H-bridge controlled by a digital state machine. The device supports a wide supply voltage range of 3.3 V to 18 V and delivers an output current of 960 mA. It features PWM input for speed control and allows configurable speed curves via external resistors. The component is housed in a DFN-WF-10 package and complies with AEC-Q100 standards.
Feature Summary
- Integrates single-coil fan driver with low BOM cost and half-size single-layer PCB capability
- High magnetic sensitivity with advanced offset elimination system
- Wide operating voltage range from 3.3 V to 18 V
- Configurable speed curve through adjustment of external resistors
Applications
- Single-coil DC brushless motor (BLDC) driving
- Consumer electronics cooling fans
- Automotive ventilation systems
Procurement Notes
Verify the specific suffix 'AAF' against official Melexis documentation to confirm pinout and functional variations compared to standard variants. Confirm the 'RE' suffix indicates reel packaging if required for assembly. Check the lifecycle status as 'NRND' (Not Recommended for New Designs) to assess long-term availability risks before finalizing procurement plans.
Selection Notes
Select this component when a compact, single-chip solution for single-coil BLDC motors is required. It is suitable for applications needing a wide input voltage range and configurable speed profiles. Ensure the design accommodates the DFN-WF-10 package dimensions and thermal requirements. Verify that the 960 mA output current meets the motor's operational needs.
Part Context
The MLX90297 series consists of single-chip fan drivers using mixed-signal CMOS technology. These devices are designed to drive single-coil BLDC motors efficiently via PWM switching. The family offers high integration, including voltage regulation, Hall sensing, and power output stages within a single package, aimed at reducing board space and component count.
Replacement Considerations
Check for direct substitutes within the MLX90297 family with compatible suffixes. Verify pin compatibility and electrical specifications before replacing. Consult Melexis for recommended alternatives if the NRND status impacts production continuity.
