ACS709 전류 센서 -75A ~ 75A
(ACS709 Current Sensor Carrier -75A to +75A)
개요
- 본 제품은 Allegro사의 ±75A ACS709 전류센서를 탑재한 제품입니다.
- +/-75A 사이의 전류를 입력 받아 측정된 전류 값을 아날로그 전압으로 출력합니다.
- 3.3V 및 5V 시스템과 동작합니다.
특징
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Current sense: 0.018 V/A2 Minimum logic voltage: 3 V Maximum logic voltage: 5.5 V Supply current: 11 mA - Optimized accuracy for bidirectional input current from -37.5 A to 37.5 A, with a linear sensing range from -75 A to 75 A (see warning note below for thermal limitations).
- Conductive path internal resistance is typically 1.1 mΩ, and the PCB is made with 2-oz copper, so very little power is lost in the board.
- Integrated shield greatly reduces capacitive coupling from current conductor to die and prevents offset drift in high-side applications.
- Use of a Hall effect sensor means the IC is able to electrically isolate the current path from the sensor's electronics (up to 2.1 kV RMS), which allows the sensor to be inserted anywhere along the current path and to be used in applications that require electrical isolation.
- 120 kHz bandwith that can optionally be decreased by adding a capacitor across the board pins marked "FILT".
- High accuracy and reliability: typical total output error of 2% at room temperature with factory calibration, an extremely stable quiescent output voltage
- Automotive-grade operating temperature range of -40°C to 150°C.
- User-settable overcurrent threshold: FAULT pin output latches low when current exceeds the configured threshold for a duration that can be set through the addition of an external capacitor.