MLX90411KZE-BAA-026-RE

Overview

The MLX90411KZE-BAA-026-RE is a Melexis integrated single-coil fan driver designed for consumer applications. It operates within a supply voltage range of 3.2V to 32V and features an integrated 20V power clamp to handle back EMF without external TVS diodes. The device supports a maximum motor current of 660mA and utilizes a SOT-23-6 surface-mount package. It incorporates a high-sensitivity Hall effect sensor for closed-loop speed control with ±1.5% accuracy, adaptive commutation for low noise, and programmable protection features including over-current and thermal shutdown.

Feature Summary

• Integrated single-coil fan driver with built-in high-sensitivity Hall effect sensor
• Adaptive commutation technology for optimized efficiency and low acoustic noise across the entire speed range
• Built-in 20V power clamp eliminates the need for external transient voltage suppression components
• Programmable I2C interface allowing on-board EEPROM configuration of dynamic PI settings and protection thresholds

Applications

• Information Technology (IT) equipment cooling fans
• Home appliance blowers and pumps
• Industrial ventilation systems
• Consumer electronics thermal management

Procurement Notes

Verify component authenticity through authorized Melexis distributors or certified partners. Confirm the specific suffix BAA-026 matches project requirements for the 660mA current limit and 20V clamp variant. Check lead times as availability may be limited. Ensure ESD handling procedures are followed during assembly due to moisture sensitivity classification.

Selection Notes

Select this part for applications requiring a compact SOT-23-6 footprint and open-loop or closed-loop control up to 660mA. The 20V clamp is suitable for 5V and 12V systems. For higher current needs or different voltage clamping, consider other variants in the MLX90411 family. Verify that the operating temperature range meets the environmental constraints of the target application.

Part Context

This component belongs to the MLX90411 series, a family of intelligent fan drivers from Melexis Technologies NV. The KZE suffix indicates a consumer-grade version housed in a straight-pin SOT-23-6 package. This series is engineered to reduce system cost and size by integrating sensing, control, and power stages into a single chip.

Replacement Considerations

Direct substitutes include other MLX90411 variants with matching electrical parameters, such as those with different current limits or voltage clamps. Cross-reference pinouts and functional specifications carefully when considering alternative packages like UTDFN.