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AMC23C12-Q1

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Automotive, fast-response, reinforced, isolated window comparator with adjustable threshold

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Data sheet

AMC23C12-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Output type Open-drain Propagation delay time (µs) 0.29 CMTI (min) (kV/µs) 55 Rating Automotive Operating temperature range (°C) -40 to 125 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Transient isolation voltage (VIOTM) (VPK) 7070 Working isolation voltage (VIOWM) (Vrms) 750 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5
Number of channels 1 Output type Open-drain Propagation delay time (µs) 0.29 CMTI (min) (kV/µs) 55 Rating Automotive Operating temperature range (°C) -40 to 125 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5000 Transient isolation voltage (VIOTM) (VPK) 7070 Working isolation voltage (VIOWM) (Vrms) 750 Creepage (min) (mm) 8.5 Clearance (min) (mm) 8.5
SOIC (DWV) 8 67.275 mm² 5.85 x 11.5
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Wide high-side supply range: 3 V to 25 V
  • Low-side supply range: 2.7 V to 5.5 V
  • Adjustable threshold:
    • Window-comparator mode: ±20 mV to ±300 mV
    • Positive-comparator mode: 600 mV to 2.7 V
  • Reference for threshold adjustment: 100 µA, ±2%
  • Trip threshold error: ±1% (max) at 250 mV
  • Open-drain output with optional latch mode
  • Propagation delay: 280 ns (typ)
  • High CMTI: 55 V/ns (min)
  • Safety-related certifications:
    • 7000-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-VRMS isolation for 1 minute per UL1577
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Wide high-side supply range: 3 V to 25 V
  • Low-side supply range: 2.7 V to 5.5 V
  • Adjustable threshold:
    • Window-comparator mode: ±20 mV to ±300 mV
    • Positive-comparator mode: 600 mV to 2.7 V
  • Reference for threshold adjustment: 100 µA, ±2%
  • Trip threshold error: ±1% (max) at 250 mV
  • Open-drain output with optional latch mode
  • Propagation delay: 280 ns (typ)
  • High CMTI: 55 V/ns (min)
  • Safety-related certifications:
    • 7000-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-VRMS isolation for 1 minute per UL1577

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.

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.
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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
Application brief Verwendung von AMC3311 zur Stromversorgung des AMC23C11 für isolierte Sensorik und Fehlererkennung PDF | HTML 21 Aug 2024
Analog Design Journal Verwendung isolierter Komparatoren zur Fehlererkennung in Elektromotorantrieben PDF | HTML 07 Aug 2024
Analog Design Journal 전기 모터 드라이브의 오류 감지를 위해 절연 콤퍼레이터 사용 PDF | HTML 07 Aug 2024
Circuit design Isolierter Überstromschutzschaltkreis PDF | HTML 16 Jul 2024
Circuit design 절연 과전류 보호 회로 PDF | HTML 16 Jul 2024
Application brief AMC3311을 활용하여 절연 감지 및 고장 감지를 위해 AMC23C11 에 전원 공급 PDF | HTML 31 May 2024
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

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Evaluation board

AMC23C12EVM — AMC23C12 evaluation module for fast-response, reinforced, isolated window comparator

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 (...)

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