ISO7831DWW

Overview

The ISO7831DWW is a triple-channel digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It features capacitive coupling technology with a maximum insulation voltage of 5700 Vrms and supports data rates up to 100 Mb/s. The device operates within a supply voltage range of 2.25 V to 5.5 V, drawing a typical operating current of 13.2 mA. It provides bidirectional or unidirectional signal transmission with a propagation delay of 11 ns and a common-mode transient immunity of 100 kV/µs. The component functions reliably across an extended temperature range from -55°C to +125°C.

Feature Summary

• Provides high-reliability electrical isolation between circuits using capacitive coupling technology.
• Supports flexible signal routing with configurable bidirectional and unidirectional channel polarities.
• Ensures signal integrity in noisy environments through high common-mode transient immunity ratings.

Applications

• Industrial automation systems requiring robust galvanic isolation
• Medical equipment needing reinforced isolation for patient safety
• Power electronics interfaces for motor control and inverters

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and functional configuration. Ensure compatibility with system voltage levels and thermal requirements. Confirm moisture sensitivity level handling procedures during assembly. Validate that the SOIC-16 footprint matches the design layout constraints.

Selection Notes

Select this component when triple-channel isolation is required within a compact surface-mount package. Consider the 100 Mb/s data rate capability for high-speed communication needs. Evaluate the 5700 Vrms insulation rating against regulatory safety standards. Assess power consumption relative to the 13.2 mA operating current specification.

Part Context

This part belongs to the ISO7831 series of general-purpose digital isolators. It shares the same core isolation architecture as other members but offers three isolated channels. The DWW suffix denotes the standard SOIC-16 tube packaging variant. It complements single and quad-channel options in the broader interface IC portfolio.

Replacement Considerations

ISO7831DWWR serves as the reel-packaged equivalent. ISO7831FDWW offers identical functionality with updated manufacturing specifications. Verify pin compatibility before substituting with other triple-channel isolators.