ISOW7840FDWER

Overview

The ISOW7840FDWER is a high-performance, reinforced quad-channel digital isolator manufactured by Texas Instruments. It features four independent channels with a 4/0 input-to-output configuration and operates at data rates up to 100 Mbps. The device provides 5000 Vrms isolation voltage and supports a common-mode transient immunity (CMTI) of 100 kV/µs. It functions within a supply voltage range of 3 V to 5.5 V and includes shutdown functionality. Packaged in a 16-pin SOIC (DW) format with a 7.50 mm width, it ensures reliable signal transmission across isolated boundaries.

Feature Summary

• Provides reinforced insulation for safety-critical applications
• Integrates four independent unidirectional channels
• Supports high-speed data transmission up to 100 Mbps
• Features low propagation delay and pulse width distortion

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety barriers
• Power metering and energy management interfaces
• Inverter control circuits in motor drives

Procurement Notes

Verify the specific suffix 'WER' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 16-SOIC package dimensions align with the target PCB footprint. Ensure the operating temperature range meets the environmental specifications of the final application. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and current production status before procurement.

Selection Notes

Select this component when reinforced isolation ratings are mandatory for regulatory compliance. Choose this model over standard isolation devices if higher common-mode transient immunity is required. Consider the 4/0 channel configuration for applications needing multiple outputs from a single source. Evaluate power consumption requirements as the device draws significant current during operation compared to lower-channel variants.

Part Context

This device belongs to the ISOW784x family of digital isolators, which utilizes capacitive coupling technology combined with on-chip decoupling circuits. The family is designed to replace traditional optocouplers in high-speed, high-reliability applications. The ISOW7840FDWER specifically offers quad-channel capability within a compact surface-mount package, supporting modern industrial and medical interface standards.

Replacement Considerations

The ISOW7840FDWE is the tube-packaged equivalent of this reel-part. Verify pinout compatibility when substituting with other quad-channel isolators from the ISO784x series, noting differences in isolation ratings or CMTI specifications.