ISO5851DW

Isolators - Gate Drivers Overview

The ISO5851DW is a single-channel galvanically isolated gate driver from Texas Instruments, housed in a 16-SOIC package. It features capacitive coupling technology with a 5700 Vrms isolation voltage and supports output supply voltages from 15 V to 30 V. The device provides peak output currents of 2.7 A and 5.5 A, with maximum propagation delays of 110 ns and rise/fall times of 20 ns. Operating temperatures range from -40°C to +125°C.

Isolators - Gate Drivers Feature Summary

• Integrates active safety features including DESAT protection, Miller clamp, power good indication, fault output, and reset functionality.
• Utilizes high-speed capacitive coupling for reliable signal transmission across the isolation barrier.
• Offers configurable inverting and non-inverting logic configurations for flexible system integration.

Isolators - Gate Drivers Applications

• IGBT gate driving in industrial motor drives
• MOSFET gate driving in high-voltage power supplies
• Inverter systems requiring high common-mode transient immunity

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'DW' corresponds to the tube packaging format, as the 'DWR' variant indicates reel packaging. Confirm current production status, as some sources indicate potential obsolescence or lifecycle changes for this specific package type. Ensure compatibility with required insulation certifications such as UL, CSA, and VDE for your application's safety standards.

Isolators - Gate Drivers Selection Notes

Select this component when high common-mode transient immunity (CMTI) and integrated safety protections are critical. The 16-SOIC package suits surface-mount designs requiring robust isolation. Consider the peak drive current requirements and operating temperature range to ensure performance within specified limits for IGBT or MOSFET switching applications.

Isolators - Gate Drivers Part Context

The ISO5851DW belongs to the ISO5851 family of high-CMTI isolated gate drivers. This series is designed for demanding industrial and automotive applications where reliable isolation and fast switching are necessary. The device complements other Texas Instruments isolation products by providing integrated safety features typically found in discrete solutions.

Isolators - Gate Drivers Replacement Considerations

The ISO5851DWR serves as a direct functional substitute differing only in packaging (reel vs. tube). Verify pinout and electrical specifications match before substituting with other isolated gate drivers from different manufacturers.