CT418-HSN850DR

Current Sensors Overview

The CT418-HSN850DR is a unidirectional current sensor utilizing XtremeSense™ Crocus TMR technology. It detects currents up to 50A with a sensitivity of 80mV/A and an accuracy of ±1%. The device operates on a 4.75V to 5.5V supply, consuming a maximum of 9mA. It features a 300ns response time and supports frequencies from DC to 1MHz. Packaged in an 8-SOIC (3.90mm width), it ensures high linearity at ±0.2% and functions within a temperature range of -40°C to 125°C.

Current Sensors Feature Summary

• Utilizes XtremeSense™ Crocus TMR technology for high-performance magnetic sensing
• Provides voltage output ratio proportional to detected current
• Ensures high precision with ±1% accuracy and ±0.2% linearity
• Supports AC/DC current measurement in a compact surface-mount package

Current Sensors Applications

• Motor control systems
• Power supply monitoring
• Industrial automation equipment
• Battery management systems

Current Sensors Procurement Notes

Verify the specific suffix DR indicates tape-and-reel packaging when ordering. Confirm the 8-SOIC footprint matches the PCB design requirements. Ensure the 50A detection limit aligns with the application's peak current demands. Check that the operating temperature range covers the intended environment. Validate the 4.75V-5.5V supply voltage compatibility with the system power rail.

Current Sensors Selection Notes

Select this model for applications requiring high accuracy and fast response times in current sensing. The 80mV/A sensitivity provides a clear signal for downstream processing. Consider the 8-SOIC package size for space-constrained designs. Evaluate the ±1% accuracy against system tolerance requirements. Ensure the unidirectional nature fits the current flow direction of the circuit.

Current Sensors Part Context

This component belongs to the CT418 series by Allegro MicroSystems, designed for precise current monitoring. It leverages Tunnel Magnetoresistance (TMR) technology for improved performance over traditional Hall-effect sensors. The series offers various sensitivity options to suit different current ranges while maintaining a consistent interface and package form factor.

Current Sensors Replacement Considerations

For direct replacements, consider other CT418 variants with matching 50A ratings and 8-SOIC packages. Verify that any substitute maintains the same 80mV/A sensitivity and ±1% accuracy specifications. Ensure the replacement part supports the required 4.75V-5.5V supply voltage and operates within the same temperature range.