CT416-HSN865MR

Current Sensors Overview

The Allegro MicroSystems CT416-HSN865MR is an integrated contact current sensor utilizing patented XtremeSense™ TMR technology. It features a bidirectional output with a detection range of 65A and a sensitivity of 30.8mV/A. The device operates on a 3V to 3.6V supply, drawing a maximum of 9mA. Key electrical parameters include ±1% accuracy, ±0.2% linearity, and a 300ns response time across a DC to 1MHz frequency range. It is housed in an 8-SOIC package and supports operating temperatures from -40°C to 125°C.

Current Sensors Feature Summary

• Utilizes patented XtremeSense™ TMR technology for high-accuracy sensing
• Provides ultra-low noise performance for precise signal integrity
• Features bidirectional current detection capability
• Delivers high bandwidth operation up to 1MHz

Current Sensors Applications

• Integrated contact current monitoring
• High-bandwidth AC/DC current measurement
• Precision industrial control systems
• Power management circuitry

Current Sensors Procurement Notes

Verify the specific suffix MR against official datasheets to confirm bidirectional functionality, as other variants like HSN865DR are unidirectional. Confirm component status, as this part may be marked not recommended for new designs. Ensure compatibility with 8-SOIC footprints and validate thermal resistance requirements for the target application environment.

Current Sensors Selection Notes

Select this component when bidirectional current sensing is required within a 65A range. The 30.8mV/A sensitivity and ±1% accuracy suit precision applications. Consider the 8-SOIC package constraints and -40°C to 125°C temperature range. Verify that the 3V to 3.6V supply voltage aligns with system power rails and that the 9mA supply current fits power budget constraints.

Current Sensors Part Context

This part belongs to the CT416 series of XtremeSense™ TMR current sensors. It shares the core TMR technology and 8-SOIC form factor with related models but differs in polarization. Unlike the HSN865DR variant which is unidirectional, this MR suffix indicates bidirectional operation, affecting its suitability for alternating or reversing current flows.

Current Sensors Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the CT417-HSN865DR and CT427-HSN865DR. Note that these equivalents are specified as unidirectional, whereas the CT416-HSN865MR is bidirectional. Direct functional substitution requires verifying if bidirectional capability is mandatory for the specific circuit design.

Current Sensors FAQ

Is the CT416-HSN865MR unidirectional or bidirectional?

The CT416-HSN865MR is a bidirectional current sensor, unlike the CT416-HSN865DR which is unidirectional.

What is the operating supply voltage range for this sensor?

The device operates within a voltage supply range of 3V to 3.6V.