TLP7820(D4-TP4,E

Overview

The TLP7820(D4-TP4,E) is an optically isolated amplifier manufactured by Toshiba Semiconductor and Storage. It utilizes sigma-delta analog-to-digital converter technology to provide high-accuracy isolation. The device features a single circuit with a differential analog output, housed in an 8-SO surface-mount package. Key electrical parameters include a -3dB bandwidth of 230 kHz, input offset voltage of 900 µV, supply current of 12mA, and input bias current of 5.5 nA. It operates within a temperature range of -40°C to 105°C and supports supply voltages between 4.5 V and 5.5 V.

Feature Summary

• Integrates sigma-delta analog-to-digital converter technology for high-precision signal isolation.
• Provides differential analog output for direct interface with downstream processing circuits.
• Ensures reliable galvanic isolation between input and output stages.

Applications

• Motor phase current sensing
• Inverter current and voltage sensing

Procurement Notes

Verify the complete part number including suffixes such as (D4-TP4,E) against official Toshiba documentation to ensure correct packaging and specifications. Confirm RoHS compliance status and safety certifications like UL or VDE if required for your specific application environment. Cross-reference datasheet revisions to confirm pinout and electrical characteristics match your design requirements before finalizing procurement.

Selection Notes

Select this component when high accuracy and wide bandwidth are required in isolated measurement applications. The sigma-delta architecture offers superior performance compared to traditional linear optocouplers. Ensure the system design accommodates the 8-SO package dimensions and thermal requirements. Verify that the supply voltage range aligns with the target power rails and that the operating temperature range covers the intended environmental conditions.

Part Context

This part belongs to the TLP7820 series of optically coupled isolation amplifiers from Toshiba. These devices are designed for applications requiring precise analog signal transmission across isolation barriers. The series leverages advanced modulation techniques to achieve high linearity and low noise, making it suitable for industrial and automotive control systems where signal integrity is critical.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Toshiba technical support or authorized distributors for qualified alternatives if this specific variant is unavailable.

FAQ

What type of output does the TLP7820(D4-TP4,E) provide?

It provides a differential analog output.

What technology is used for isolation in this device?

It uses sigma-delta analog-to-digital converter technology.