CT416-HSN850DR

Current Sensors Overview

The CT416-HSN850DR is a unidirectional current sensor from Allegro MicroSystems utilizing XtremeSense™ TMR technology. It features a 50A detection range with ±1% accuracy and ±0.2% linearity. The device operates on a 3V to 3.6V supply, consuming a maximum of 9mA. It provides a voltage output with 40mV/A sensitivity and a 300ns response time across DC to 1MHz frequencies. Packaged in an 8-SOIC (0.154" width) surface-mount format, it supports AC/DC measurements within a -40°C to 125°C operating temperature range.

Current Sensors Feature Summary

• Integrates patented XtremeSense™ Tunnel Magnetoresistance (TMR) technology for ultra-low noise performance.
• Delivers high precision with ±1% total error and ±0.2% linearity for accurate current monitoring.
• Provides a ratiometric voltage output compatible with standard analog-to-digital conversion interfaces.

Current Sensors Applications

• Motor control systems requiring precise current feedback
• Power supply management and over-current protection circuits
• Industrial automation equipment monitoring

Current Sensors Procurement Notes

Verify the specific suffix 'HSN850DR' against official Allegro documentation to confirm the 50A rating and 3.3V nominal operation. Ensure the procurement channel sources genuine components, as counterfeit sensors may exhibit incorrect sensitivity or failure under thermal stress. Cross-reference the 8-SOIC package dimensions and pinout configuration with the manufacturer's mechanical drawing prior to PCB layout finalization.

Current Sensors Selection Notes

Select this component when low noise and high accuracy are critical for small-signal current detection. The 50A limit suits applications where peak currents remain below this threshold. Consider the 3V-3.6V supply constraint for compatibility with low-voltage logic systems. Evaluate the 8-SOIC footprint against available board space and thermal dissipation requirements for the target enclosure design.

Current Sensors Part Context

This part belongs to the XtremeSense™ Crocus series, representing Allegro's advanced magnetoresistive sensing family. It succeeds earlier generations by offering superior signal-to-noise ratios compared to Hall-effect alternatives. The CT416 designation identifies the specific functional block within the broader product line designed for robust industrial and automotive environments.

Current Sensors Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the CT427-HSN850DR and CT417-HSN850DR. Verify that these alternatives match the 50A range and 3.3V supply requirements before integration. Check for any differences in sensitivity or package tolerance if direct pin-to-pin replacement is required without schematic modification.