The ACS724 Current Sensor Carrier provides a compact breakout for Allegro's ±50A ACS724LLCTR-50AB Hall effect-based linear current sensor. It offers a low-resistance (~1.2 mΩ) current path and electrical isolation up to 2.4 kV RMS, making it suitable for high-current monitoring in motors, power supplies, and industrial applications.

This bidirectional sensor accepts current up to ±50A and outputs a proportional analogue voltage centred at 2.5V, which can be read directly by an Arduino or other microcontroller. The carrier board includes bypass capacitors and is designed for use in 5V systems.

Key Features

• ±50A Bidirectional Range – Measures high current flowing in both directions
• 40 mV/A Sensitivity – Proportional analogue output centred at 2.5V
• High Isolation – Electrical isolation up to 2.4 kV RMS
• Low Resistance – ~1.2 mΩ current path for minimal circuit impact
• High Accuracy – Typical error of ±0.8%
• Compact Carrier Board – Includes bypass capacitors, ready to use

Specifications

• Sensor IC: ACS724LLCTR-50AB
• Supply Voltage: 4.5V – 5.5V DC
• Current Range: -50A to +50A
• Sensitivity: 40 mV/A
• Output Voltage: 2.5V at 0A (ratiometric)
• Isolation: 2.4 kV RMS
• Path Resistance: ~1.2 mΩ
• Typical Error: ±0.8%

Also Available

• ACS711EX Current Sensor Carrier – ±31A
• ACS714 Current Sensor Carrier – ±5A
• ACS712 Current Sensor – 5A
• ACS712 Current Sensor – 20A
• Gravity: Analog Current Sensor 50A (AC/DC) V2

Ideal For

• High-current motor control and monitoring
• Industrial power supply monitoring
• Electric vehicle battery management
• Solar inverter current sensing
• Over-current protection in high-power circuits

Package Contents

• 1× ACS724 Current Sensor Carrier Board (±50A)