SMA6853MX LF2451

Overview

The SMA6853MX LF2451 is a high-voltage three-phase motor driver IC manufactured by Sanken Electric. It integrates power MOSFETs and control logic for AC and synchronous stepper motors. The device supports a supply voltage range of 13.5V to 16.5V and delivers a continuous output current of 3.75A. It features a 200V maximum load voltage capability and operates within a junction temperature range of -20°C to 150°C. The component utilizes a 24-pin SIP (SMA) through-hole package.

Feature Summary

• Integrates bootstrap diodes with limiting resistors
• CMOS-compatible input supporting 3.3V or 5V logic levels
• Includes built-in overheat detection circuit
• Features undervoltage lockout protection

Applications

• Air purifier fans
• Washer-dryer fans

Procurement Notes

Verify the specific suffix LF2451 against official manufacturer documentation to confirm lead-free compliance and packaging details. Ensure the ordering information matches the exact electrical specifications required for the target application, as variations may exist within the product family.

Selection Notes

Select this component for applications requiring a fully integrated three-phase driver with high current capacity. The CMOS-compatible interface simplifies connection to standard microcontrollers. Verify that the thermal management design accommodates the specified operating temperature range and power dissipation characteristics.

Part Context

This part belongs to the SMA68xx series of high-voltage three-phase motor drivers from Sanken Electric. These devices are designed to simplify the implementation of brushless DC and AC motor control systems by combining power stages and control logic in a single package.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.