AMC23C14DWVR

Overview

The AMC23C14DWVR is a dual, fast-response, reinforced isolated window comparator from Texas Instruments. It features a high-side supply range of 3V to 27V and a low-side supply range of 2.7V to 5.5V. The device includes one adjustable window comparator (±20mV to ±300mV) and one fixed threshold comparator (±300mV). It supports positive-comparator mode with thresholds up to 2.7V. Key electrical parameters include a typical propagation delay of 280ns, minimum common-mode transient immunity (CMTI) of 15V/ns, and open-drain outputs. It operates over an extended industrial temperature range of –40°C to +125°C.

Feature Summary

• Dual window comparator architecture with one adjustable threshold channel and one fixed ±300mV threshold channel.
• Reinforced galvanic isolation barrier certified for safety applications with high magnetic interference resistance.
• Supports positive-comparator-only mode for monitoring positive voltage supplies by disabling negative comparators.
• High common-mode transient immunity (CMTI) ensures reliable operation in noisy environments.

Applications

• Overcurrent or overvoltage detection in motor drives
• Protection circuits in frequency inverters
• Safety monitoring in solar inverters
• Fault detection in DC/DC converters

Procurement Notes

Verify the specific ordering suffix 'DWVR' corresponds to the SOIC-8 package and tape-and-reel packaging configuration required for your assembly process. Confirm that the component meets the necessary safety certifications, such as VDE 0884-17 and UL 1577, for your final equipment's isolation requirements. Ensure the supplier provides valid documentation regarding the RoHS compliance status and material declarations before purchase.

Selection Notes

Select this component when dual-channel isolation with distinct threshold configurations is required. The adjustable threshold allows customization for sensitive detection, while the fixed threshold provides a constant reference. Consider the wide high-side supply range if operating in high-voltage systems. Verify that the open-drain output interface matches the pull-up requirements of the downstream microcontroller or logic circuitry.

Part Context

The AMC23C14 belongs to Texas Instruments' family of isolated analog comparators designed for robust performance in power electronics. Unlike standard comparators, it integrates a reinforced isolation barrier, eliminating the need for external isolators. This integration simplifies board layout and reduces component count in high-voltage sensing applications where signal integrity and safety are critical.

Replacement Considerations

Public confirmed substitute part numbers: None identified in source data.