CT433-HSWF65DR

Current Sensors Overview

The Allegro MicroSystems CT433-HSWF65DR is a unidirectional current sensor utilizing XtremeSense™ TMR technology. It features a 16-SOIC package with a detection range of 65A and a sensitivity of 30.8mV/A. The device operates on a supply voltage of 3V to 3.6V, consuming a maximum supply current of 9mA. It offers high accuracy with ±0.5% precision and ±0.2% linearity. The output is ratiometric voltage, supporting frequencies from DC to 1MHz with a response time of 300ns. Operating temperatures range from -40°C to 125°C.

Current Sensors Feature Summary

• Utilizes XtremeSense™ TMR technology for high bandwidth and accuracy
• Provides ratiometric voltage output for direct interface with microcontrollers
• Designed for unidirectional current measurement applications
• Operates within a wide temperature range suitable for harsh environments

Current Sensors Applications

• Power distribution units (PDUs)
• Heat pump systems
• Clean energy solutions

Current Sensors Procurement Notes

Verify the specific suffix DR against official Allegro documentation to confirm unidirectional functionality and package details. Ensure compatibility with 3V logic levels and check thermal resistance requirements for the 16-SOIC surface mount installation. Cross-reference datasheet revisions to confirm pinout consistency.

Current Sensors Selection Notes

Select this component for applications requiring high-speed current sensing up to 1MHz. The 30.8mV/A sensitivity provides adequate resolution for 65A limits. Consider the 16-SOIC footprint for PCB layout constraints. Verify that unidirectional measurement meets system requirements compared to bidirectional alternatives like the MR variant.

Current Sensors Part Context

This part belongs to the CT433 XtremeSense™ Crocus series, leveraging Tunnel Magnetoresistance (TMR) technology. It represents an evolution in magnetic sensing, offering improved performance over traditional Hall-effect sensors. The series is designed for modern power management applications requiring compact size and high reliability.

Current Sensors Replacement Considerations

The CT433-HSWF65MR serves as a related alternative but supports bidirectional sensing rather than unidirectional. Verify if bidirectional capability is required or if the specific sensitivity and polarity of the DR variant are critical for the design.