TLP7820(D4ATP4,E

Overview

The TLP7820(D4ATP4,E is an optically isolated amplifier manufactured by Toshiba Semiconductor and Storage. It utilizes sigma-delta analog-to-digital converter technology to provide high-precision signal isolation. The device features a gain accuracy of ±1% for the 'A' rank configuration. It operates with a supply voltage range of 3V to 5.5V and offers a bandwidth of 230 kHz. Key electrical parameters include a common-mode rejection ratio of 80 dB, an input offset voltage of 900 µV, and a minimum common-mode transient immunity of 15 kV/µs. The component is housed in an SO8L package.

Feature Summary

• High common-mode noise suppression capability ensures accurate signal transmission in electrically noisy environments.
• Sigma-delta modulation architecture provides high linearity and precision for analog signal isolation.
• Low power consumption design reduces thermal load in compact electronic motor drive applications.

Applications

• Motor phase current sensing in electronic motor drives
• Power inverter current and voltage sensing
• Industrial control systems requiring galvanic isolation

Procurement Notes

Verify the specific suffix 'D4ATP4' against official Toshiba documentation to confirm pinout compatibility and gain rank 'A' specifications. Ensure the ordering code matches the required safety certifications such as VDE or UL. Confirm package dimensions align with PCB land patterns before finalizing procurement orders.

Selection Notes

Select this component when high accuracy and fast response are required for isolated current sensing. The 'A' rank indicates tighter gain tolerance compared to other variants. Consider the SO8L package size for space-constrained designs. Evaluate the 230 kHz bandwidth against the switching frequency of the target application to ensure sufficient signal fidelity.

Part Context

This part belongs to the TLP7820 series of optically coupled isolation amplifiers. The series is designed specifically for high-performance industrial applications. It integrates optical isolation with analog signal processing on a single chip. The family includes various gain ranks and packaging options to suit different system requirements.

Replacement Considerations

Direct substitutes within the same series include TLP7820(D4BLF4,E and TLP7820(D4ALF4,E. Verify that the replacement variant maintains the required gain accuracy rank and package type. Cross-reference datasheets to ensure identical pin configurations and electrical characteristics before implementation.