ACHS-719X LINEAR CURRENT SENSOR ICS

Broadcom’s ACHS-719x sensor ICs have a compact, surface mountable, SO-8 package that meets worldwide regulatory safety standards

The BroadcomΒ ACHS-719xΒ (Β±10 A to Β±50 A) fully integrated Hall effect-based isolated linear current sensors are designed for AC or DC current sensing in industrial, commercial, and communications systems.

ACHS-719X LINEAR CURRENT SENSOR ICS

Inside each ACHS-719x IC is a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field that the differential Hall sensors convert into a proportional voltage. Device accuracy is optimized across the operating ambient temperature through the close proximity of the magnetic signal to the Hall sensors. A precise, proportional voltage is provided by the low-offset, chopper-stabilized CMOS Hall IC, programmed for accuracy after packaging. The output of the device has a positive slope (>VOUT(Q)) when an increasing current flows through the primary copper conduction path (from pins 1 and 2 to pins 3 and 4), which is the path used for current sampling. The internal resistance of this conductive path is 0.7 mΞ© typical, providing low power loss. The terminals of the conductive path are electrically isolated from the signal leads (pins 5 through 8). This performance is delivered in a compact, surface-mountable, SO-8 package that meets worldwide regulatory safety standards.

Features

  • Wide operating temperature: -40Β°C to +110Β°C
  • Internal conductor resistance: 0.7 mΞ© typ.
  • Sensing current range: Β±10 A ~ Β±50 A
  • Output sensitivity: 40 mV/A to 185 mV/A
  • Output voltage proportional to AC or DC currents
  • Ratiometric output from supply voltage
  • Single supply operation: 5.0 V
  • Low-noise analog signal path
  • Device bandwidth set via the FILTER pin
    • 80 kHz typ. bandwidth with 1 nF filter capacitor
  • Factory-trimmed for accuracy
  • Extremely stable output offset voltage
  • Near-zero magnetic hysteresis
  • Maximum output error of Β±6.0% across operating TA
  • >25 kV/Β΅s common mode transient immunity
  • Small footprint, low-profile SO-8 package
  • Worldwide safety approval: UL/cUL, IEC/EN 62368-1 (VIORMΒ = 567 VPEAK)

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