ISO7310CDR

Overview

The ISO7310CDR is a low-power, single-channel digital isolator from Texas Instruments. It provides galvanic isolation up to 3000 Vrms for one minute per UL and 4242 Vpk per VDE standards. The device operates with a supply voltage range of 3 V to 5.5 V and supports data rates up to 25 Mbps. Key electrical parameters include a typical propagation delay of 32 ns, a maximum pulse width distortion of 4 ns, and a common-mode transient immunity (CMTI) of 25 kV/µs. It functions within an operating temperature range of -40°C to +125°C and is housed in an 8-SOIC package.

Feature Summary

• Provides robust electromagnetic compatibility performance suitable for noisy industrial environments
• Utilizes capacitive coupling technology for high-speed signal transmission across isolation barriers
• Offers low power consumption characteristics optimized for energy-efficient system designs

Applications

• Industrial automation systems requiring reliable signal isolation
• Medical equipment needing certified galvanic isolation
• Power metering applications involving high-voltage interfaces

Procurement Notes

Verify the specific suffix 'CDR' indicates tape-and-reel packaging when ordering. Confirm that the component meets RoHS3 compliance requirements for your region. Ensure the design accounts for the moisture sensitivity level specified in the datasheet. Check for any updated revision notes regarding pinout or electrical characteristics before finalizing the bill of materials.

Selection Notes

Select this component when a single-channel isolator with 25 Mbps speed is required. It is suitable for designs needing 3000 Vrms isolation without integrated power supplies. Consider the SOIC-8 footprint constraints during PCB layout. Evaluate the 25 kV/µs CMTI rating against the noise environment of the application circuit.

Part Context

This part belongs to the ISO7310C family of digital isolators. It shares core specifications with variants like ISO7310CD but differs in packaging format. The series is designed to replace traditional optocouplers in modern interface circuits. It complements other Texas Instruments isolation products offering multi-channel configurations.

Replacement Considerations

Direct substitutes include ISO7310CD for tube packaging. Verify pin-to-pin compatibility with legacy optocouplers if migrating existing designs. Ensure voltage ratings match the new isolation barrier requirements.