CT417-HSN850MR

Current Sensors Overview

The CT417-HSN850MR is a unidirectional current sensor from Allegro MicroSystems' XtremeSense Crocus series. It utilizes magnetoresistive technology to measure DC and AC currents up to 50A with a single channel. The device features an 8-SOIC surface-mount package (3.90mm width) and operates on a supply voltage of 3V to 3.6V, drawing a maximum supply current of 6mA. It offers high precision with ±1% accuracy and ±0.1% linearity. The sensor provides a voltage output ratio with a sensitivity of 80mV/A and supports frequencies up to 1MHz. It has a response time of 300ns and functions within a temperature range of -40°C to +125°C.

Current Sensors Feature Summary

• Utilizes XtremeSense TMR technology for ultra-low noise performance
• Provides accurate measurement of unidirectional AC/DC currents
• Features high linearity and precision in a compact SOIC package

Current Sensors Applications

• Over-current detection circuits
• Motor control systems
• Power management units

Current Sensors Procurement Notes

Verify the specific suffix 'HSN850MR' against official Allegro documentation to confirm the exact electrical characteristics, particularly the 3V-3.6V supply requirement and unidirectional nature. Ensure compatibility with the required operating temperature range and package dimensions before integration into the design.

Current Sensors Selection Notes

Select this component when low-noise, high-precision current sensing is required for unidirectional applications. It is suitable for designs constrained by the 8-SOIC footprint and 3.3V logic interfaces. Consider the 1MHz bandwidth and fast response time for dynamic load monitoring tasks.

Current Sensors Part Context

This part belongs to the CT417 family of XtremeSense TMR sensors. It is distinct from similar models like the CT418 or CT428, which may differ in supply voltage ranges, accuracy specifications, or bidirectional capabilities. The CT417 variant is specifically optimized for 3V operation and unidirectional sensing.

Current Sensors Replacement Considerations

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