AMC23C12DWV

Overview

The AMC23C12DWV is a fast-response, reinforced isolated window comparator featuring adjustable thresholds and a latch function. It provides galvanic isolation with a high-side supply range of 3V to 27V and a low-side range of 2.7V to 5.5V. The device supports window-comparator mode with thresholds from ±20mV to ±300mV, or positive-comparator mode ranging from 600mV to 2.7V. It offers a typical propagation delay of 280ns, a minimum common-mode transient immunity (CMTI) of 55V/ns, and certified reinforced isolation up to 7000VPK per VDE 0884-17.

Feature Summary

• Reinforced galvanic isolation barrier certified for safety applications
• Adjustable trip threshold via external resistor on the reference pin
• Open-drain output supporting transparent and latch operational modes
• High common-mode transient immunity resistant to magnetic interference

Applications

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

Procurement Notes

Verify that the specific ordering suffix matches the required package variant and tape-and-reel specifications. Confirm compliance with relevant safety certifications such as UL1577 and VDE 0884-17 for the intended application environment. Ensure design adheres to recommended operating conditions regarding supply voltages and thermal dissipation limits to maintain device reliability.

Selection Notes

Select this component when precise voltage monitoring requires high-speed response within an isolated system. The adjustable threshold capability allows customization for various signal levels without changing hardware. Consider the wide high-side supply range for compatibility with diverse power bus architectures. Evaluate the latch feature if holding fault states until cleared by a microcontroller is necessary.

Part Context

This part belongs to the AMC23C1x family of isolated comparators designed for robust industrial environments. It utilizes Texas Instruments' capacitive isolation technology to separate input and output circuits. The DWV package denotes an 8-pin wide-body SOIC format suitable for surface-mount assembly. It serves as a critical interface between high-voltage sensing nodes and low-voltage control logic.

Replacement Considerations

AMC23C11DWV: Similar isolated comparator but lacks the window comparison functionality.