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About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

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Application Circuit (Current sensing) of the TLP7920 Isolation Amplifier

This reference design provides design guide and example of simulation waveform for phase current detection with optical isolation amplifier for motor control of servo and inverter.

Application block diagram of application circuit (current sensing) of the TLP7920 isolation amplifier.
Application Block Diagram
Applicatoin Circuit Diagram of application circuit (current sensing) of the TLP7920 isolation amplifier.
Applicatoin Circuit Diagram

Description

  • Description of TLP7920 signature functions and features, especially common mode transient immunity, nonlenearity feature and low cosumption current
  • Design guide for the typical application circuit, current sensing circuit
  • Operation confirmation by Spice simulation

Features

  • Optically coupled isolation amplifier
  • Common mode noise imunity : 15kV/μs(Min)
  • Low comsumption current : Primary side 8.6mA(typ.), Secondary side 6.2mA(typ.)

Reference design files

Design, Document

“Design・Document” contains the documents listed below.

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Design, File

“Design・File” contains the contents listed below.

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Toshiba items

Part Number Device Category Portion Usage Description
TLP7920 Isolation amplifier signal amplifier・1 Isolation amplifier/Analog output/DIP8

Documents

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