TPT7740F-SO3R

Overview

The TPT7740F-SO3R is a general-purpose digital isolator manufactured by 3PEAK. It features four forward channels with zero reverse channels, providing a default LOW output state. The device supports data rates up to 150 Mbps and offers a common-mode transient immunity (CMTI) of 150 kV/µs. It is rated for an isolation voltage of 3750 Vrms and is housed in a 16-pin SOIC package with a width of 0.154 inches (3.90 mm).

Feature Summary

• Four-channel digital isolation with unidirectional signal transmission.
• High-speed data processing capability supporting 150 Mbps transmission rates.
• Robust noise immunity characterized by 150 kV/µs common-mode transient rejection.
• Standardized safety isolation rating of 3750 Vrms for reliable operation.

Applications

• General-purpose digital isolation in industrial control systems.
• Signal isolation in measurement and testing equipment.
• Interface isolation in embedded computing platforms.

Procurement Notes

Verify the specific suffix SO3R against official datasheets to confirm pinout compatibility and package dimensions. Ensure that the default LOW output configuration aligns with system logic requirements. Cross-reference safety certifications such as UL 1577 or VDE standards if regulatory compliance is mandatory for the end application. Confirm operating temperature ranges match environmental conditions.

Selection Notes

Select this component when unidirectional isolation is sufficient for the design. The four-channel configuration reduces board space compared to discrete single-channel solutions. Consider the 150 Mbps speed limit for high-frequency applications. Evaluate the 3750 Vrms rating against system isolation needs. The default LOW output simplifies initialization logic in certain microcontroller interfaces.

Part Context

This part belongs to the TPT774x series of digital isolators from 3PEAK. The series utilizes proprietary isolation IP technology designed for low power consumption and high reliability. Other variants in the family may offer bidirectional channels or different channel counts. The SO3R suffix indicates a specific tape-and-reel packaging format suitable for automated assembly processes.

Replacement Considerations

Direct substitutes include other 4-channel unidirectional digital isolators with similar 3750 Vrms ratings and 150 Mbps speeds. Verify pin-to-pin compatibility before substitution. Alternative parts must support the same supply voltage range and default output states. Check for equivalent safety certifications if used in regulated industries.