CT416-HSN820MR

Current Sensors Overview

The CT416-HSN820MR is a board-mount current sensor from Allegro MicroSystems, utilizing XtremeSense™ TMR technology. It features a 20A detection range with bidirectional capability and a 100mV/A sensitivity. The device operates on a 3V to 3.6V supply with a maximum supply current of 6mA. It offers ±1% total error accuracy and a 1MHz bandwidth. Packaged in an 8-SOIC (0.154", 3.90mm width) surface mount format, it supports AC/DC measurements across a -40°C to +125°C operating temperature range.

Current Sensors Feature Summary

• Integrates a current carrying conductor for compact design
• Provides linear analog output voltage proportional to sensed current
• Utilizes Tunnel Magnetoresistance technology for low noise performance

Current Sensors Applications

• Motor control systems
• Power supply monitoring
• Battery management systems

Current Sensors Procurement Notes

Verify the component status as Not Recommended for New Designs (NRND) before finalizing any engineering specifications or long-term production plans. Confirm that the specific ordering suffix matches the required package variant and polarity configuration. Ensure compatibility with existing PCB footprints and thermal management requirements for the 8-SOIC package. Review the latest datasheet revision for any updates to electrical characteristics or mechanical dimensions prior to procurement.

Current Sensors Selection Notes

Select this component when a bidirectional current sensing solution with high bandwidth is required within a low-voltage system architecture. The integrated current carrying conductor simplifies layout compared to discrete shunt resistor approaches. Consider the ±1% total error specification against application tolerance requirements. Evaluate the 3V to 3.6V supply constraint against available system rails. Compare the 20A limit against peak load currents to ensure adequate headroom.

Current Sensors Part Context

This part belongs to the CT416 series of XtremeSense™ TMR current sensors. It shares the same fundamental technology platform as other variants in the family but differs in current rating, polarity, and supply voltage specifications. The CT416 line is designed for applications requiring high precision and fast response times in space-constrained environments.

Current Sensors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the component is marked NRND, consult the manufacturer for potential obsolescence management options or recommended alternatives.