TLP7820(D4A,TL,E

Overview

The TLP7820(D4A,TL,E) is a single-channel optically isolated amplifier manufactured by Toshiba Semiconductor and Storage. It utilizes sigma-delta analog-to-digital converter technology to provide high-accuracy signal isolation with an analog output interface. The device operates within a supply voltage range of 3 V to 5.5 V and features a bandwidth of 230 kHz. Key electrical specifications include a common-mode rejection ratio of 80 dB, an input offset voltage of 900 µV, and an insulation voltage rating of 5000 Vrms. It is housed in an SOIC-8 package and supports surface mount installation across a temperature range of -40°C to +105°C.

Feature Summary

• Integrates sigma-delta analog-to-digital conversion for precise isolation amplification
• Provides analog output interface for direct signal processing
• Ensures high-voltage safety compliance through optical coupling

Applications

• Motor phase current sensing
• Inverter voltage sensing
• Inverter current sensing

Procurement Notes

Verify the specific suffix configuration against official Toshiba documentation to ensure correct gain ranking and packaging options. Confirm that the requested variant matches the required safety certifications and lead frame finish specifications for your target application environment.

Selection Notes

Select this component when high-accuracy isolation is required for power electronics monitoring. The integrated sigma-delta architecture simplifies design by providing a linear analog output without external modulation circuits. Ensure the system voltage and thermal constraints align with the specified operating ranges.

Part Context

This part belongs to the TLP7820 series of optically coupled isolation amplifiers. These devices are designed for applications requiring galvanic isolation between high-voltage power stages and low-voltage control circuitry. The series emphasizes accuracy and stability in noisy industrial environments.

Replacement Considerations

Consult official Toshiba substitution guides for verified alternatives. Generic optocouplers lack the integrated sigma-delta modulation and analog output capabilities required for this specific function.