ISO7330CDWR

Overview

The ISO7330CDWR is a low-power, triple-channel digital isolator from Texas Instruments, designed for automotive and industrial applications. It features capacitive coupling technology with a 3000 Vrms insulation voltage and 25 kV/µs common-mode transient immunity. Operating at data rates up to 25 Mb/s, it supports supply voltages between 3 V and 5.5 V with a typical quiescent current of 7 mA per channel. The device offers a propagation delay of 32 ns and functions within an extended temperature range of -40°C to +125°C. Packaged in a 16-pin SOIC (DW) surface-mount format, it provides reliable galvanic isolation for high-speed signal transmission.

Feature Summary

• Triple-channel unidirectional signal isolation using robust capacitive coupling technology
• High common-mode transient immunity of 25 kV/µs ensures signal integrity in noisy environments
• Low power consumption design suitable for battery-operated and energy-efficient systems
• Automotive-grade qualification supporting operation in harsh thermal conditions

Applications

• Automotive engine control units and sensor interfaces
• Industrial communication gateways and protocol converters
• Power monitoring systems requiring galvanic separation
• Medical equipment signal isolation

Procurement Notes

Verify the specific suffix 'CDWR' to confirm the commercial temperature grade (-40°C to +125°C) and reel packaging configuration. Ensure compatibility with the target application's voltage levels and isolation requirements. Cross-reference the datasheet for pinout consistency with existing designs. Confirm RoHS compliance status as indicated in official documentation before finalizing procurement orders.

Selection Notes

Select this component when triple-channel isolation is required with moderate speed capabilities up to 25 Mbps. It is appropriate for applications prioritizing low power consumption over ultra-high speed performance. Consider the 16-pin SOIC package constraints for PCB layout. Compare against single or dual-channel alternatives if fewer isolation points are sufficient for the system architecture.

Part Context

This part belongs to the ISO7330 family of digital isolators, which utilizes Texas Instruments' capacitive isolation technology. It serves as a modern replacement for traditional magnetic isolators, offering higher integration and lower power. The CDWR variant specifically denotes the commercial temperature range and tape-and-reel packaging, distinguishing it from other temperature grades or tube-packaged versions within the same series.

Replacement Considerations

Direct substitutes include the ISO7330CQDWRQ1 for enhanced automotive qualification or the ISO7330CDW for tube packaging. Verify that alternative parts maintain the same 3000 Vrms isolation rating and 25 Mbps data rate. Ensure pin-to-pin compatibility with the 16-SOIC footprint to facilitate seamless board upgrades without redesigning the schematic or layout.