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Product Detailed Parameters
- Description：1-COIL PWM 3.5 18V 680MA CURRENT
- Series：-
- Mfr：Melexis Technologies NV
- Package：Tape & Reel (TR)
- Motor Type - Stepper：-
- Motor Type - AC, DC：Brushless DC (BLDC)
- Function：Driver
- Output Configuration：-
- Interface：PWM
- Technology：-
- 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 MLX90297LLW-AAF-206-RE is a single-chip fan driver manufactured by Melexis using mixed-signal CMOS technology. It is designed to drive single-coil brushless DC (BLDC) motors with an output current limit of 800 mA. The device operates within a wide supply voltage range of 3.3 V to 18 V and supports PWM input signals for speed control. It features a configurable speed curve via external resistors, integrates a voltage regulator, Hall sensor with offset elimination, and a power H-bridge. The component is AEC-Q100 qualified and housed in an SOIC-8 package.
Feature Summary
- Integrates a single-coil fan driver with low BOM cost and half-size single-layer PCB capability
- Features high magnetic sensitivity and efficient speed control through PWM switching
- Includes integrated voltage regulator, Hall sensor with advanced offset elimination, and power H-bridge
- Provides 9 kV HBM ESD protection and complies with AEC-Q100 standards
Applications
- Single-coil DC brushless motor driving
- Consumer appliance fan control
- Low noise fan applications
Procurement Notes
Verify the specific suffix 'AAF-206-RE' against official Melexis documentation to confirm exact factory configuration and reel specifications. Confirm that this part number aligns with current design recommendations, as related variants may carry different lifecycle statuses. Ensure compatibility with required operating temperatures and voltage ranges before procurement.
Selection Notes
Select this component for applications requiring a compact, single-chip solution for single-coil BLDC fans. It is suitable where low noise and configurable speed curves are necessary. Consider the 800 mA current limit and 3.3 V to 18 V input range when designing the power stage. Verify that the SOIC-8 package fits the board layout constraints.
Part Context
This part belongs to the MLX90297 series of single-chip fan drivers from Melexis. These devices are engineered for consumer and automotive applications requiring reliable fan control. The series utilizes mixed-signal CMOS processes to integrate sensing and power stages into a small footprint, reducing system complexity and assembly costs compared to discrete solutions.
Replacement Considerations
Check Melexis official substitution lists for direct replacements. Verify pinout and electrical characteristics match if considering alternative vendors. Note that lifecycle status changes may affect long-term availability.
