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HCPL-788J Integarted Circuts Chip IC Electronics ICs Chip

HCPL-788J Integarted Circuts Chip IC Electronics ICs Chip

Categories Electronic IC Chips
Brand Name: AVAGO
Model Number: HCPL-788J
Certification: Original Factory Pack
Place of Origin: Original
MOQ: 100pcs
Price: Negotiation
Payment Terms: T/T, Western Union,PayPal
Supply Ability: 5000PCS
Delivery Time: 1 Day
Packaging Details: REEL
Temperature Range: -40°C to +85°C
Payment Term: T/T, Paypal, Western Union
Voltage: 5V
Current: 10A
Package: SOP-16
Factory Package: REEL
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    HCPL-788J Integarted Circuts Chip IC Electronics ICs Chip

    HCPL-788J Integarted Circuts Chip IC Electronics ICs Chip

    Isolation Amplifier with Short Circuit and Overload Detection


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    Feature

    • Output Voltage Directly Compatible with A/D Converters (0 V to VREF)

    • Fast (3 µs) Short Circuit Detection with Transient Fault Rejection

    • Absolute Value Signal Output for Overload Detection

    • 1 µV/°C Offset Change vs. Temperature

    • SO-16 Package

    • -40°C to +85°C Operating Temperature Range

    • 25 kV/µs Isolation Transient Immunity

    • Regulatory Approvals (Pending): UL, CSA, VDE 0884 (891 Vpeak Working Voltage)


    Description

    The HCPL-788J isolation amplifier is designed for current sensing in electronic motor drives. In a typical implementation, motor currents flow through an external resistor and the resulting analog voltage drop is sensed by the HCPL-788J. A larger analog output voltage is created on the other side of the HCPL-788J’s optical isolation barrier. The output voltage is proportional to the motor current and can be connected directly to a singlesupply A/D converter. A digital over-range output (FAULT) and an analog rectified output (ABSVAL) are also provided. The wire OR-able over-range output (FAULT) is useful for quick detection of short circuit conFigure 1. Current Sensing Circuit. ditions on any of the motor phases. The wire-OR-able rectified output (ABSVAL), simplifies measurement of motor load since it performs polyphase rectification. Since the common-mode voltage swings several hundred volts in tens of nanoseconds in modern electronic motor drives, the HCPL-788J was designed to ignore very high common-mode transient slew rates (10 kV/µs).

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