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ACS37800 Isolated Power Monitor Carriers
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We are offering these breakout boards with support from Allegro Microsystems as an easy way to use or evaluate their ACS37800KMACTR-030B3-I2C isolated power monitoring IC. The following list details some of the sensor’s key features:
- Measures voltage and current, both RMS and instantaneous
- Works in single-phase AC and DC systems
- Automatic zero-crossing detection and averaging
- Calculates active, reactive, and apparent power, as well as power factor
- 1 kHz bandwidth
- Hall effect-based current sensor with electrically isolated current path
- Sensor can be inserted anywhere along the current path
- Differential Hall sensing rejects errors from common-mode fields (e.g. Earth’s magnetic field)
- Low conductive path resistance (0.85 mΩ in ACS37800, PCB uses 2 oz copper)
- Board includes resistor network with isolation and sense resistors for measuring voltage
- Three configurable voltage measurement ranges optimized for 120 VAC, 240 VAC, and 480 VAC measurement
- 1206-size, high-voltage-rated resistors on input voltage dividers
- Interface: I²C, using JST SH-style 4-pin connectors (compatible with Qwiic and STEMMA QT) or 0.1″-pitch pins
- User configuration of the IC stored in on-chip EEPROM
- Programmable over-current, under-voltage, and over-voltage detection thresholds
- Compact 1.9″ ×1.8″ board size with a variety of connection options
- Optionally available with terminal block already soldered
- Routed slots for higher creepage
- Secondary isolation for I²C signals and logic power provides additional safety and measurement accuracy
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Products in category “ACS37800 Isolated Power Monitor Carriers”
| Pololu item #: 5410 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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This board is an integrated solution for monitoring voltage, current, power, and other parameters in AC and DC systems featuring Allegro’s ACS37800KMACTR-030B3-I2C isolated power monitoring IC. It provides bidirectional current measurements from −30 A to +30 A and can be configured to measure voltages up to 480 VRMS nominal (up to ±980 V peak). Our carrier board adds secondary isolation to the sensor’s I²C interface for additional safety and measurement accuracy.
| Pololu item #: 5411 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
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This board is an integrated solution for monitoring voltage, current, power, and other parameters in AC and DC systems featuring Allegro’s ACS37800KMACTR-030B3-I2C isolated power monitoring IC. It provides bidirectional current measurements from −30 A to +30 A and can be configured to measure voltages up to 480 VRMS nominal (up to ±980 V peak). Our carrier board adds secondary isolation to the sensor’s I²C interface for additional safety and measurement accuracy. This version has a soldered Amphenol YK4410403000G terminal block rated up to 300 V.
| Pololu item #: 5412 | |
| Brand: Pololu | supply outlook |
| Status: Active and Preferred | |
|
|
|
This board is an integrated solution for monitoring voltage, current, power, and other parameters in AC and DC systems featuring Allegro’s ACS37800KMACTR-030B3-I2C isolated power monitoring IC. It provides bidirectional current measurements from −30 A to +30 A and can be configured to measure voltages up to 480 VRMS nominal (up to ±980 V peak). Our carrier board adds secondary isolation to the sensor’s I²C interface for additional safety and measurement accuracy. This version has a soldered Amphenol YK4410403000G terminal block rated up to 300 V and is configured to measure 240 VRMS by default.
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