TLP7820(A,E

Overview

The TLP7820(A,E) is a single-channel optically coupled isolation amplifier manufactured by Toshiba Semiconductor and Storage. It utilizes sigma-delta analog-to-digital converter technology to provide high-accuracy signal transmission across isolation barriers. The device features an analog output interface and operates within a supply voltage range of 3 V to 5.5 V. Key electrical specifications include a bandwidth of 230 kHz, an input offset voltage of 900 µV, and a common-mode rejection ratio of 80 dB. It is housed in an 8-SO (SO8L) surface-mount package and supports a wide operating temperature range from -40°C to +105°C.

Feature Summary

• Integrates sigma-delta analog-to-digital converter technology for high-precision isolation amplification
• Provides galvanic isolation with safety certifications including UL, cUL, and VDE standards
• Delivers differential analog output signals suitable for direct interfacing with downstream circuitry

Applications

• Motor phase current and voltage sensing
• Inverter current and voltage sensing
• Industrial control systems requiring isolated signal conditioning

Procurement Notes

Verify the specific suffix code against official Toshiba documentation to confirm pinout compatibility and packaging type. Ensure that the selected variant meets the required safety certification standards for your target application region. Cross-reference the datasheet revision history to confirm parameter consistency before finalizing procurement orders.

Selection Notes

Select this component when high accuracy and low drift are critical in isolated measurement applications. The sigma-delta architecture offers superior linearity compared to traditional pulse-width modulation isolators. Consider the 230 kHz bandwidth and 80 dB CMRR when designing for noisy industrial environments or high-frequency switching circuits.

Part Context

This part belongs to the TLP7820 series of optically coupled isolation amplifiers. The series is designed to replace traditional transformer-based isolators in modern power electronics. It integrates the optical coupling element and signal processing circuitry into a single compact package, simplifying board layout and reducing component count in isolation stages.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.