The AMC23C12-Q1 is an isolated window comparator with a short response time. The open-drain output is separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 5 kVRMS according to VDE 0884-17 and UL1577, and supports a working voltage of up to 1 kVPK.
The comparison window is centered around 0 V, meaning that the comparator trips if the absolute value of the input voltage exceeds the trip threshold value. The trip threshold is adjustable from 20 mV to 300 mV through a single external resistor and, therefore, the comparison window ranges from ±20 mV to ±300 mV. When the voltage on the REF pin is greater than 550 mV, the negative comparator is disabled and only the positive comparator is functional. The reference voltage in this mode can be as high as 2.7 V. This mode is particularly useful for monitoring voltage supplies.
The open-drain output on the device supports transparent mode (LATCH input tied to GND2) where the output follows the input state, or latch mode, where the output is cleared on the falling edge of the latch input signal.
The AMC23C12-Q1 is available in an 8-pin, wide-body SOIC package and is specified over the full automotive temperature range of –40°C to +125°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | AMC23C12-Q1 Automotive, Fast Response, Reinforced Isolated Window Comparator With Adjustable Threshold and Latch Function datasheet (Rev. A) | PDF | HTML | 14 Jul 2022 |
| Certificate | VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. S) | 29 Feb 2024 | ||
| Application brief | Utilizing AMC3311 to Power AMC23C11 for Isolated Sensing and Fault Detection | PDF | HTML | 09 Nov 2023 | |
| Technical article | Addressing the growing needs of fault detection in high-power systems | PDF | HTML | 01 Apr 2022 | |
| Circuit design | Isolated Overcurrent Protection Circuit | PDF | HTML | 24 Mar 2022 | |
| Analog Design Journal | Using isolated comparators for fault detection in electric motor drives | PDF | HTML | 14 Mar 2022 |
For additional terms or required resources, click any title below to view the detail page where available.
The AMC23C12 evaluation module (EVM) is an platform for evaluating the AMC23C12, which is an isolated window comparator with short response time and latch function. The comparator outputs are separated from the input circuitry by an isolation barrier that is certified to provide (...)
| Package | Pins | Download |
|---|---|---|
| SOIC (DWV) | 8 | View options |
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.