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0 to 400 A Current Sensor ICs with Integrated Conductor

 

P/N: SCT XXX XX-3 Series

 

Descriptions:

 

The SCT XXX-3 family of current sensor ICs provides economical and precise solutions for AC or DC current sensing. Typical applications include motor control, load detection and management, power supply and DC-to-DC converter control, inverter control, and overcurrent fault detection.
The device consists of a precision, low-offset linear Hall circuit with a copper conduction path located near the die. Applied current flowing through this copper conduction path generates a magnetic field which 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 output voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy at the factory.
High-level immunity to current conductor dV/dt and stray electric fields, offered by Allegro proprietary integrated shield technology, provides low output voltage ripple and low offset drift in high-side, high-voltage applications.

 

Features and Benefits:

 

• Open-loop current sensor using Hall effect IC
• Single 3.3V supply
• Options for uni-direction DC or bi-direction AC
• Analog output
• Current detection range: ±50A - ±250A
• Operating temperature range：-40 °C to +125°C
• (150A: -40 °C to +105°C;200A/250: -40 °C to
• + 85°C)
• QVO (Zero current output)：
• - xR：QVO ratiometric to supply voltage VCC,Fixed Gain
• VQVO = VCC/2
• -xF：Fixed QVO and Gain
• VQVO = 1.65 or 0.50 Volts
• Good linearity, accuracy and temperature drift
• Supper low power loss

 

Applications：

 

• Inverters and UPS
• Switching Power Supply
• Motor Controller

 

Pin Table:

 

 

 

Application Circuit:

 

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