ISO7810FDWR

Overview

The ISO7810FDWR is a single-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It utilizes capacitive coupling technology to provide an insulation voltage of 5700 Vrms. The device supports data rates up to 100 Mb/s with a typical propagation delay of 10.7 ns and pulse width distortion of 600 ps. Operating on a supply voltage range of 2.25 V to 5.5 V, it draws a working current of 5.7 mA. The component functions within a temperature range of -55°C to +125°C and features unidirectional signal transmission without a shutdown mode.

Feature Summary

• Provides high-reliability galvanic isolation via capacitive coupling architecture
• Supports high-speed data transmission at rates up to 100 Mb/s
• Ensures signal integrity with low propagation delay and minimal pulse width distortion

Applications

• Industrial process control systems requiring isolated communication interfaces
• Medical equipment needing enhanced safety isolation barriers
• Power management circuits for monitoring and feedback loops
• Gate drive applications for power switches and inverters

Procurement Notes

Verify the specific suffix FDWR against official Texas Instruments documentation to confirm the exact packaging configuration and moisture sensitivity level. Ensure that the procurement source provides valid RoHS compliance details as indicated in the manufacturer specifications. Cross-reference the part number with the latest datasheet revision to confirm compatibility with required isolation ratings and operating temperature ranges before finalizing orders.

Selection Notes

Select this component when a single-channel unidirectional isolator with high voltage withstand capability is required. The ISO7810FDWR is suitable for designs prioritizing speed and reliability over multi-channel integration. Consider the 16-pin SOIC footprint for board space constraints. Evaluate the 5.7 mA quiescent current against system power budgets. This part is ideal for replacing legacy optocouplers where higher data rates and longer lifespans are necessary.

Part Context

The ISO7810FDWR belongs to the ISO78xx family of digital isolators from Texas Instruments. This series is designed to replace traditional optocouplers by offering superior performance characteristics including faster switching speeds and lower power consumption. The family shares common architectural features such as capacitive isolation technology and robust EMI immunity, providing a scalable solution for various industrial and commercial interface applications.

Replacement Considerations

Direct pin-to-pin replacements within the same family include the ISO7810DW variant, which differs primarily in packaging type rather than electrical function. Designers should verify that the alternative package meets the thermal and mechanical requirements of the target application. No functional changes occur between these variants, but layout adjustments may be necessary due to package dimension differences.