AMC23C15QDWVRQ1

Overview

The AMC23C15QDWVRQ1 is an automotive-grade, dual, fast-response, reinforced isolated window comparator with adjustable thresholds. It features a wide high-side supply range of 3V to 27V and a low-side supply range of 2.7V to 5.5V. The device provides two comparators: one with a fixed ±60mV threshold and another with an adjustable threshold from ±5mV to ±300mV via a single external resistor. It supports positive-comparator mode for monitoring positive voltage supplies. The component offers open-drain outputs, a typical propagation delay of 280ns, and a minimum common-mode transient immunity (CMTI) of 15V/ns. It is housed in an 8-pin SOIC package.

Feature Summary

• Dual window comparator architecture with one fixed threshold channel and one fully adjustable threshold channel controlled by a single external resistor.
• Reinforced galvanic isolation barrier certified to support up to 5kV RMS working voltage and 7000VPK peak isolation voltage per VDE and UL standards.
• High common-mode transient immunity of 15V/ns minimum, ensuring reliable operation in electrically noisy environments such as motor drives and inverters.
• Supports positive-comparator-only mode when the reference pin voltage exceeds 550mV, disabling negative comparators for unidirectional signal monitoring.

Applications

• Overcurrent or overvoltage detection in solid-state relays
• Protection circuits in motor drives and frequency inverters
• Fault detection in solar inverters and DC/DC converters

Procurement Notes

Verify that the ordering suffix matches the required tape-and-reel packaging configuration. Confirm the specific temperature grade and AEC-Q100 qualification status align with the target automotive application requirements. Ensure the selected variant meets the necessary insulation certification standards for the final equipment design.

Selection Notes

Select this component when designing systems requiring robust isolation between high-voltage power stages and low-voltage control logic. The adjustable threshold feature allows for precise trip-point customization using minimal external components. Consider the wide input voltage range and high CMTI specifications for applications involving rapid switching transients or significant ground potential differences.

Part Context

This part belongs to the AMC23C15-Q1 family of isolated window comparators designed specifically for automotive and industrial environments. It complements other Texas Instruments isolation products by providing a specialized solution for fault detection where both speed and safety isolation are critical constraints.

Replacement Considerations

AMC23C15QDRQ1