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Product Detailed Parameters
- Description：IC MOTOR DRIVER 8SOIC
- 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：8-SMD, Flat Leads
- Supplier Device Package：8-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The MLX90297KZC-ABF-108-RX is a single-chip fan driver manufactured by Melexis, designed for driving single-coil brushless DC (BLDC) motors. It integrates a voltage regulator, Hall sensor with offset cancellation, and a power H-bridge controlled by a digital state machine. The device supports a supply voltage range of 3.3 V to 18 V and delivers an output current limit of 800 mA. It operates within a PWM input frequency range of 100 Hz to 100 kHz. Packaged in an SOIC-8 straight lead format, it meets AEC-Q100 automotive standards.
Feature Summary
- Integrates a single-coil fan driver with high magnetic sensitivity for efficient BLDC motor control via PWM switching.
- Features configurable speed curves through external resistor adjustment and includes soft-start functionality for low-noise operation.
- Provides robust protection mechanisms including 9 kV HBM ESD protection, electrical over-stress (EOS) protection, and current limiting.
Applications
- Consumer electronics cooling systems
- Automotive ventilation fans
- Single-coil DC brushless motor drives
Procurement Notes
Verify the specific suffix 'RX' against official Melexis documentation, as standard listings often reference 'SP'. Confirm the component status, as the MLX90297 series may be marked as Not Recommended for New Designs (NRND). Ensure the ordering information matches the exact package variant and revision level required for your design.
Selection Notes
Select this component for applications requiring a compact, single-layer PCB solution with integrated sensor and driver functions. It is suitable for designs needing wide voltage tolerance and configurable speed profiles. Consider the SOIC-8 straight lead package for ease of assembly and proximity mounting of the rotor sensor.
Part Context
This part belongs to the MLX90297 family of single-coil fan drivers from Melexis. These devices are engineered to reduce BOM costs and PCB size by combining multiple functions into one chip. The family is characterized by its ability to drive BLDC motors efficiently while maintaining low acoustic noise levels through advanced switching methods.
Replacement Considerations
Check for direct substitutes within the MLX90297 series or other Melexis single-coil drivers. Verify pin compatibility and electrical specifications before replacing. Note that older revisions may have different availability statuses compared to newer variants.
