MLX90297KLW-ABF-109-SP

Overview

The MLX90297KLW-ABF-109-SP is a single-chip fan driver designed for driving single-coil DC brushless motors (BLDC). It integrates a voltage regulator, Hall sensor with offset elimination, and a power H-bridge. The device supports a supply voltage range of 3.3 V to 18 V and delivers an output current of 960 mA. Speed control is achieved via PWM input signals, while the speed curve is configurable through external resistors. It features AEC-Q100 qualification and 9 kV HBM ESD protection.

Feature Summary

• Integrates voltage regulator, Hall sensor, and power H-bridge in a single package
• Enables efficient motor speed control via PWM input signals
• Allows configurable speed curves through external resistor adjustment
• Provides high magnetic sensitivity and robust ESD protection

Applications

• Single-coil DC brushless motor drives
• Consumer electronics cooling fans
• Automotive thermal management systems

Procurement Notes

Verify component status as this part is marked 'NRND' (Not Recommended for New Designs). Confirm availability of alternative sources or final time buys if continuing production is required. Ensure compatibility with existing PCB layouts using the DFN-WF-10 package before procurement decisions are finalized.

Selection Notes

Select this component for applications requiring a compact, single-layer PCB solution with low BOM cost. It is suitable for designs needing wide voltage operation between 3.3 V and 18 V. Consider the NRND status when planning long-term product lifecycles and ensure the 960 mA output current meets the specific motor requirements.

Part Context

This part belongs to Melexis' MLX90297 family of single-coil fan drivers. These devices utilize mixed-signal CMOS technology to provide integrated motor control solutions. The family is designed to reduce system size and cost by combining sensing and driving functions into one chip, targeting both automotive and consumer markets.

Replacement Considerations

Check for direct substitutes within the MLX90297 series that may have different suffixes indicating updated lifecycle status. Verify pinout and electrical specifications against any potential replacement parts to ensure functional equivalence without redesigning the surrounding circuitry.