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Product Description
Broadcom Fully Integrated Hall-Effect Based Linear Current Sensor - SSO-12 Surface-Mount - UL1577 Approval - 80 Per Tube - ACHL-7348EU-000E
The Broadcom ACHL-7348xU is a fully integrated Hall-effect based isolated linear current sensor device that is designed for AC or DC current sensing in industrial applications. The ACHL-7348xU consists of 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 Hall IC converts into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer.
A precise, proportional voltage is provided by the low-offset, chopper-stabilized CMOS Hall IC, which is programmed for accuracy after packaging. The output of the device has a positive slope (>VOCM) when an increasing current flows through the primary copper conduction path (from pin 1 to pin 6), which is the path used for current sampling.
The internal resistance of this conductive path is 0.7 mΩ typical, providing low-power loss. The terminals of the conductive path are electrically isolated from the signal leads (pins 7 through 12). This performance is delivered in a compact, auto-insert, SSO-12 package that meets worldwide regulatory safety standards.
- Wide operating temperature: –40°C to +125°C
- Internal conductor resistance: 0.7 mΩ typical
- Output voltage proportional to AC or DC currents
- Current sensing range: ±80Apeak
- Sensitivity: 40 mV/A typical
- Ratiometric output from supply voltage
- Single supply operation: 5.0V
- Bandwidth: 600 kHz typical
- Overcurrent fault feedback: 0.8 μs typical
- Total output error: ±1% typical
- Common mode transient immunity: >25 kV/μs
- Small footprint, low-profile SSO-12 package
- Worldwide safety approval: IEC/EN62368-1, UL/cUL1577
- Isolation voltage: 4.24 kVrms, 1 minute
Applications
- Current sensing in AC and servo motor drives
- Current sensing for industrial robot
- Low-power inverter current sensing
- Motor phase and rail current sensing
- Output phase current sensing in photovoltaic inverters
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