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隔離式比較器

AMC23C12

現行

具有可調閥值和閂鎖功能的快速回應強化型隔離窗型比較器

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產品規格表

AMC23C12

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Output type Open-drain Propagation delay time (µs) 0.29 CMTI (min) (kV/µs) 55 Rating Catalog 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 Catalog 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
  • Wide high-side supply range: 3 V to 27 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
  • Fully specified over the extended industrial temperature range: –40°C to +125°C
  • Wide high-side supply range: 3 V to 27 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
  • Fully specified over the extended industrial temperature range: –40°C to +125°C

The AMC23C12 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 is available in a 8-pin, wide-body SOIC package and is specified over the extended industrial temperature range of –40°C to +125°C.

The AMC23C12 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 is available in a 8-pin, wide-body SOIC package and is specified over the extended industrial temperature range of –40°C to +125°C.
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類型 標題 日期
* Data sheet AMC23C12 Fast Response, Reinforced Isolated Window Comparator With Adjustable Threshold and Latch Function datasheet (Rev. A) PDF | HTML 2022年 7月 14日
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. S) 2024年 2月 29日
Application brief Utilizing AMC3311 to Power AMC23C11 for Isolated Sensing and Fault Detection PDF | HTML 2023年 11月 9日
Certificate UL Certificate of Compliance Vol4 Sec5 E181974 (Rev. A) 2023年 1月 23日
Application note Design Considerations for Current Sensing in DC EV Charging Applications PDF | HTML 2022年 12月 13日
Application note DC+ Bus Power-Supply Solution Using Bootstrap Charge Pump Technique PDF | HTML 2022年 4月 6日
Technical article Addressing the growing needs of fault detection in high-power systems PDF | HTML 2022年 4月 1日
Circuit design Isolated Overcurrent Protection Circuit PDF | HTML 2022年 3月 24日
Analog Design Journal Using isolated comparators for fault detection in electric motor drives PDF | HTML 2022年 3月 14日

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開發板

AMC23C12EVM — 適用於快速回應強化型隔離窗型比較器的 AMC23C12 評估模組

AMC23C12 評估模組 (EVM) 是用於評估 AMC23C12 的平台，AMC23C12 則是具有短回應時間和閂鎖功能的隔離窗型比較器。比較器輸出由經認證的隔離層與輸入電路分離，提供高達 5 kVRMS 的強化電氣隔離，並支援高達 1.5 kVRMS 的工作電壓。

使用指南: PDF | HTML
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模擬型號

AMC23C12 PSPICE Model

SBAM500.ZIP (63 KB) - PSpice Model
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模擬型號

AMC23C12 TINA-TI Reference Design

SBAM478.TSC (11028 KB) - TINA-TI Reference Design
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