MLX90297LLW-ABF-206-SP

Overview

The MLX90297LLW-ABF-206-SP is a single-chip fan driver designed for driving single-coil DC brushless motors (BLDC). It utilizes mixed-signal CMOS technology to integrate a voltage regulator, Hall sensor with offset elimination, and a power output H-bridge. The device supports a supply voltage range of 3.3 V to 18 V and delivers an output current of 960 mA. Motor speed is controlled via PWM input signals, while the speed curve is configured using external resistors. It features AEC-Q100 qualification and 9 kV HBM ESD protection.

Feature Summary

• Integrates single-coil fan driver functionality for low BOM cost and compact PCB design
• Offers high magnetic sensitivity with advanced offset elimination systems
• Supports wide operating voltage range from 3.3 V to 18 V
• Configurable speed curves through adjustment of external resistors

Applications

• Consumer electronics cooling fans
• Single-coil BLDC motor control in home appliances
• Automotive ventilation systems requiring AEC-Q100 components
• Industrial pump and fan drivers

Procurement Notes

Verify the specific suffix ABF-206-SP against the official Melexis datasheet to confirm pinout and configuration settings. Note that this component carries an 'nrnd' (not recommended for new designs) lifecycle status according to distributor data; consider alternative newer generation parts for long-term projects. Ensure compatibility with DFN-WF-10 packaging requirements during procurement planning.

Selection Notes

Select this driver when a single-coil BLDC solution is required with configurable speed characteristics. It is suitable for applications needing operation between 3.3 V and 18 V with up to 960 mA output. The integrated Hall sensor simplifies design by eliminating external sensing components. Verify thermal performance within the DFN-WF-10 package for the intended power dissipation levels.

Part Context

The MLX90297 series represents Melexis' family of intelligent fan drivers combining magnetic sensing and power output in one package. This specific model targets consumer and automotive markets where space constraints and bill-of-materials costs are critical. It replaces discrete solutions by integrating the voltage regulator, Hall effect sensor, and H-bridge driver into a single DFN-WF-10 footprint.

Replacement Considerations

Check Melexis documentation for direct cross-references or updated generations replacing the nrnd status. No public substitute part numbers are confirmed in the provided source material.