AMC23C11DWVR

Overview

The AMC23C11DWVR is a fast-response, reinforced isolated comparator featuring an adjustable threshold and latch function. It operates with a high-side supply range of 3V to 27V and a low-side supply range of 2.7V to 5.5V. The device provides a trip threshold error of ±1% (max) at 250mV and supports an open-drain output with optional latch mode. It achieves a typical propagation delay of 240ns and a minimum common-mode transient immunity (CMTI) of 75V/ns. Certified for 7000VPK reinforced isolation per DIN EN IEC 60747-17 and 5000VRMS per UL1577, it functions over the extended industrial temperature range of –40°C to +125°C in an 8-pin SOIC package.

Feature Summary

• Reinforced galvanic isolation barrier certified for safety applications
• Adjustable trip threshold via external resistor or internal reference current
• Configurable open-drain output supporting transparent or latch modes
• High resistance to magnetic interference and common-mode transients

Applications

• Overcurrent detection in motor drives
• Overvoltage detection in frequency inverters
• Protection circuits in solar inverters
• Fault detection in DC/DC converters

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the application voltage levels remain within the specified absolute maximum ratings to prevent barrier damage. Ensure PCB layout maintains the required creepage and clearance distances to preserve the certified isolation performance. Check for updated documentation revisions before finalizing design implementation.

Selection Notes

Select this component when reinforced isolation certification is mandatory for system safety compliance. It is suitable for applications requiring precise threshold adjustment with minimal hysteresis. Consider the wide high-side supply range if interfacing with higher voltage rails directly. Evaluate the latch functionality requirements to determine if state retention upon fault detection is necessary for the control logic.

Part Context

This part belongs to Texas Instruments' family of isolated comparators designed for robust signal transmission across isolation barriers. It utilizes capacitive isolation technology to provide high CMTI while maintaining small physical footprint. The device complements other isolated amplifiers and modulators by offering rapid response times for protection loops.

Replacement Considerations

AMC23C11DWR