Broadcomβs 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.
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)
Read more: ACHS-719X LINEAR CURRENT SENSOR ICS