TLP7820(A-TP4,E

Overview

The TLP7820(A-TP4,E is a photocoupler isolation amplifier manufactured by Toshiba Semiconductor and Storage. It integrates an input LED, a photodiode array, and signal processing circuits to provide high-precision analog isolation. The device features a gain accuracy of ±0.5% for the B rank and supports a differential output configuration. It operates within a supply voltage range of 4.5 V to 5.5 V and maintains a bandwidth of 230 kHz. The component is housed in an 8-SO package with a wide operating temperature range from -40°C to 105°C.

Feature Summary

• Provides high-precision analog signal isolation with specified gain accuracy ranks.
• Features high common-mode transient immunity for noise rejection in motor drive environments.
• Utilizes a sigma-delta A/D conversion architecture for accurate signal transmission across the isolation barrier.
• Supports differential output configurations suitable for current and voltage sensing applications.

Applications

• Motor phase and rail current sensing in electronic motor drives
• Power inverter current and voltage sensing
• High-accuracy industrial control systems requiring galvanic isolation

Procurement Notes

Verify the specific suffix (A-TP4) against official Toshiba documentation to confirm the exact gain rank and packaging type. Ensure compatibility with the required isolation voltage standards and thermal management requirements for the target application environment before finalizing procurement.

Selection Notes

Select this component when precise analog isolation is required for motor control or power inversion. Consider the 230 kHz bandwidth and low supply current characteristics. Verify that the 8-SO package dimensions fit the PCB layout constraints and that the gain accuracy meets the system's tolerance requirements.

Part Context

This part belongs to the TLP7820 series of optically isolated amplifiers designed for high-performance industrial applications. The series addresses the need for precision sensing in modern energy-efficient systems like AC servo controllers and renewable energy inverters, offering integrated solutions for current and voltage monitoring.

Replacement Considerations

Consult Toshiba datasheets for direct pin-compatible alternatives within the TLP7820 family. Verify functional equivalence regarding gain accuracy, bandwidth, and isolation ratings before substituting with other manufacturers' isolation amplifiers.