產品一覽
ACS71240整合式電流感測器
Allegro MicroSystems
ACS71240 汽車級電流隔離電流感測器 IC 非常適用於 PCB 空間有限的應用
Allegro MicroSystems 的 ACS71240 系列符合汽車 AEC-Q100 標準、單片霍爾效應電流感測器 IC 與廣受好評的 Allegro ACS711 系列電流感測器 IC 相比，具有新一代的改進。這些改進包含對雜散磁場 (由相鄰馬達或載流導線產生) 的輸出訊號耐受性、改善的輸出訊號準確度 (典型值小於 ±1.5%) 和輸出訊號對高雜訊電源電壓軌的耐受性。元件還具有專用的快速過電流故障輸出，典型響應時間為 1.5 μs。這種快速故障輸出可提供偵測短路事件的簡易方式，防止逆變器、馬達或其他開關電力電子應用中的 MOSFET 或 IGBT 損壞。
ACS71240 提供兩種非常小的封裝選項，每種封裝都提供不同級別的電流隔離。微小的 3 mm x 3 mm 可潤濕側翼 QFN 封裝可用於高達 120 VDC 的電壓軌，並可進行零 PPM 汽車應用所需的焊點檢測。標準覆蓋區 SOIC-8 封裝已通過 UL 認證，最高可達 2400 VRMS 隔離，並提供 420 VDC 或 297 VRMS 的工作電壓。
| Part Number | 通道數 | 頻率範圍 | 線性度 | 準確度 | 回應時間 | 靈敏度 | 额定电流 | 工作溫度 | 電源電壓 | 元件封裝 |
|---|---|---|---|---|---|---|---|---|---|---|
| ACS71240KEXBLT-010B3 | Analog | 120 kHz | ±1% | ±6% | 4µs | 132mV/A | 10A | -40 °C ~ 125 °C(TA) | 3.3 V | 12-lead QFN (3x3) |
| ACS71240KEXBLT-010B3-115 | Analog | 120 kHz | ±1% | ±6% | 4µs | 132mV/A | 10A | -40 °C ~ 125 °C(TA) | 3.3 V | 12-lead QFN (3x3) |
| ACS71240KEXBLT-030B3 | Analog | 120 kHz | ±1% | ±6% | 4µs | 44mV/A | 30A | -40 °C ~ 125 °C(TA) | 3.3 V | 12-lead QFN (3x3) |
| ACS71240KEXBLT-050U5 | Analog | 120 kHz | ±1% | ±6% | 4µs | 80mV/A | 50A | -40 °C ~ 125 °C(TA) | 5V | 12-lead QFN (3x3) |
| ACS71240LLCBTR-010B3 | Analog | 120 kHz | ±1% | ±6% | 4µs | 132mV/A | 10A | -40 °C ~ 150 °C(TA) | 3.3V | 8-lead SOIC |
| ACS71240LLCBTR-030B3 | Analog | 120 kHz | ±1% | ±6% | 4µs | 44mV/A | 30A | -40 °C ~ 150 °C(TA) | 3.3V | 8-lead SOIC |
| ACS71240LLCBTR-045B53 | Analog | 120 kHz | ±1% | ±6% | 4µs | 44.4mV/A | 45A | -40 °C ~ 150 °C(TA) | 5V | 8-lead SOIC |
| ACS71240LLCBTR-050U5 | Analog | 120 kHz | ±1% | ±6% | 4µs | 80mV/A | 50A | -40 °C ~ 150 °C(TA) | 5V | 8-lead SOIC |
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Datasheet Download on Sep, 2022
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