AMC22C12
- Wide high-side supply range: 3V to 27V
- Low-side supply range: 2.7V to 5.5V
- Adjustable threshold:
- Window-comparator mode: ±20mV to ±300mV
- Positive-comparator mode: 600mV to 2.7V
- Reference current for threshold adjustment: 100µA, ±1%
- Trip threshold error: ±1% (max) at 250mV
- Open-drain output with optional latch mode
- Propagation delay: 280ns (typ)
- High CMTI: 55V/ns (min)
- Safety-related certifications:
- 4250VPK basic isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 3000VRMS isolation for 1 minute per UL1577
- Fully specified over the extended industrial temperature range: –40°C to +125°C
The AMC22C12 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 galvanic isolation of up to 3kVRMS according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577, and supports a working voltage of up to 560VRMS.
The comparison window is centered around 0V, meaning that the comparator trips if the absolute value of the input voltage exceeds the trip threshold value. The trip threshold is adjustable from 20mV to 300mV through a single external resistor and, therefore, the comparison window ranges from ±20mV to ±300mV. When the voltage on the REF pin is greater than 550mV, the negative comparator is disabled and only the positive comparator is functional. The reference voltage in this mode can be as high as 2.7V. 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 AMC22C12 is available in a 8-pin SOIC package and is specified over the extended industrial temperature range of –40°C to +125°C.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | AMC22C12 Fast Response, Basic Isolated Window Comparator With Adjustable Threshold and Latch Function datasheet (Rev. B) | PDF | HTML | 2024年 12月 12日 |
| EVM User's guide | EVM User's Guide: AMC-AMP-50A-EVM (Rev. A) | PDF | HTML | 2025年 2月 6日 | |
| Application note | Design Considerations for Current Sensing in DC EV Charging Applications | PDF | HTML | 2022年 12月 13日 | |
| Certificate | UL Certificate of Compliance File E181974 Vol 4 Sec 1 (Rev. A) | 2022年 8月 5日 | ||
| Analog Design Journal | Using isolated comparators for fault detection in electric motor drives | PDF | HTML | 2022年 3月 14日 |
設計與開發
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AMC-AMP-50A-EVM — 適用於 ±50A AMCxx 放大器的評估模組
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 是具短回應時間和閂鎖功能的隔離式窗型比較器。比較器輸出由經認證的隔離層與輸入電路分離，提供高達 5kVRMS 的強化電隔離，並支援高達 1.5kVRMS 的工作電壓。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。