Product 產品介紹
Product 產品介紹
Current Sensor ACS724: Automotive-Grade, Galvanically Isolated With Common-Mode Field Rejection
Current Sensor ACS724: Automotive-Grade, Galvanically Isolated With Common-Mode Field Rejection
The Allegro™ ACS724 current sensor IC is an economical and precise solution for AC or DC current sensing in industrial, automotive, commercial, and communications systems. The small package is ideal for space-constrained applications while also saving costs due to reduced board area. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.

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Features and Benefits:
  • Differential Hall sensing rejects common-mode fields
  • 1.2 mΩ primary conductor resistance for low power loss and high inrush current withstand capability
  • Integrated shield virtually eliminates capacitive coupling from current conductor to die, greatly suppressing output noise due to high dv/dt transients
  • Industry-leading noise performance with greatly improved bandwidth through proprietary amplifier and filter design techniques
  • High-bandwidth 120 kHz analog output for faster response times in control applications
  • Filter pin allows user to filter the output for improved resolution at lower bandwidth
  • Patented integrated digital temperature compensation circuitry allows for near closed loop accuracy over temperature in an open loop sensor
  • Small footprint, low-profile SOIC8 package suitable for space-constrained applications
  • Filter pin simplifies bandwidth limiting for better resolution at lower frequencies
  • 5 V, single supply operation
  • Output voltage proportional to AC or DC current
  • Factory-trimmed sensitivity and quiescent output voltage for improved accuracy
  • Chopper stabilization results in extremely stable quiescent output voltage
  • Nearly zero magnetic hysteresis
  • Ratiometric output from supply voltage

Function Block Diagram:

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