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Product Detailed Parameters
- Description：IC MOTOR DRIVER 8SOIC
- Series：-
- Mfr：Melexis Technologies NV
- Package：Bulk
- 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-AAF-108-SP is a single-chip fan driver designed for driving single-coil DC brushless motors (BLDC). It operates within a supply voltage range of 3.3 V to 18 V and supports a current limit of 800 mA. The device utilizes PWM input signals for speed control, with configurable speed curves via external resistors. It features an integrated voltage regulator, Hall sensor with offset elimination, and a power output H-bridge controlled by a digital state machine. The component is housed in an SOIC-8 package and complies with AEC-Q100 standards.
Feature Summary
- Integrates voltage regulator, Hall sensor, and H-bridge in a single chip
- Supports PWM speed control with configurable speed curves
- Provides high ESD protection and electrical over-stress robustness
Applications
- Single-coil DC brushless motor drives
- Consumer electronics cooling fans
- Industrial fan systems
Procurement Notes
Verify the specific suffix 'AAF' against official Melexis documentation to confirm pinout and functional variations compared to other variants like 'VAF'. Confirm end-of-life status as the series is marked NRND. Ensure compatibility with required operating voltage and current limits before procurement.
Selection Notes
Select this component for applications requiring a compact, low-BOM solution for single-coil BLDC fans. It is suitable where AEC-Q100 qualification is necessary. Consider the SOIC-8 package constraints and the need for external resistors for speed curve configuration when designing the circuit.
Part Context
This part belongs to the MLX90297 series from Melexis, which focuses on integrated solutions for fan control. The series is designed to reduce PCB size and cost by combining analog, digital, and power stages into one mixed-signal CMOS chip, targeting both consumer and automotive-grade reliability requirements.
Replacement Considerations
The MLX90297 series is marked as Not Recommended for New Designs (NRND). Verify if newer Melexis alternatives or compatible third-party single-coil fan drivers are available that meet the same voltage, current, and package specifications.
