CT430-HSWF20DR

Current Sensors Overview

The CT430-HSWF20DR is a unidirectional, magnetoresistive current sensor from Allegro MicroSystems' XtremeSense™ Crocus series. It features a 16-SOIC package and supports AC/DC measurement up to 20A with a sensitivity of 200mV/A. The device offers high bandwidth (DC ~ 1MHz) and a rapid response time of 300ns. Key electrical parameters include ±0.7% accuracy, ±0.1% linearity, and a supply voltage range of 4.75V to 5.5V. Operating temperature spans -40°C to 125°C.

Current Sensors Feature Summary

• Ultra-low noise performance ranging from 9 to 15 mARMS at 100 kHz bandwidth
• High bandwidth capability with a rapid response time for precise signal capture
• Integrated design combining magnetic sensing and signal processing in a compact package

Current Sensors Applications

• Precision current monitoring in industrial motor drives
• Power supply feedback loops in switching regulators
• Battery management systems requiring high-bandwidth DC current sensing

Current Sensors Procurement Notes

Verify the specific suffix 'HSWF20DR' against the manufacturer's official datasheet to confirm pinout, sensitivity, and packaging details. Ensure compatibility with the required operating temperature range (-40°C to 125°C) and supply voltage specifications (4.75V ~ 5.5V). Confirm RoHS compliance status if required by project standards.

Current Sensors Selection Notes

Select this component when high bandwidth and low noise are critical for accurate current profiling. The 200mV/A sensitivity and 1MHz frequency range suit applications demanding fast transient response. Consider the 16-SOIC footprint for surface-mount assembly constraints and verify that the unidirectional output aligns with the system's signal conditioning requirements.

Current Sensors Part Context

This part belongs to the CT430 XtremeSense™ TMR/MR sensor family, designed for high-performance current sensing. It integrates magnetoresistive elements with on-chip signal processing to deliver accurate analog voltage outputs proportional to the sensed current, distinguishing it from simpler Hall-effect devices through superior noise characteristics.

Current Sensors Replacement Considerations

Check for direct substitutes within the CT430 series or other Allegro MR sensors with matching 20A ratings and 16-SOIC packages. Verify that any replacement maintains the same sensitivity (200mV/A) and bandwidth (1MHz) to ensure circuit compatibility without redesign.