SI823H9TC-ISR

Isolators - Gate Drivers Overview

The SI823H9TC-ISR is a single-channel galvanically isolated gate driver from Skyworks Solutions, designed for high-performance power switching applications. It features a 3.75 kV RMS isolation rating and operates within an extended temperature range of -40°C to +125°C. The device provides a symmetric drive capability with a peak output current of 4.0 A. Key electrical parameters include a maximum propagation delay of 30 ns for both low-to-high and high-to-low transitions. It utilizes an 8-SOIC surface-mount package and holds AEC-Q100 automotive qualification.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation between control and power sides using silicon technology
• Delivers symmetric 4.0 A peak drive current for efficient MOSFET or IGBT switching
• Ensures high noise immunity with a minimum common-mode transient immunity of 125 kV/µs
• Supports wide operating voltage ranges suitable for various industrial and automotive topologies

Isolators - Gate Drivers Applications

• Automotive motor control systems requiring AEC-Q100 qualified components
• Industrial inverter and converter circuits utilizing high-frequency switching
• Isolated gate driving for power modules in renewable energy inverters
• High-voltage bridge configurations in electric vehicle traction drives

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ISR' corresponds to the tape-and-reel packaging format when sourcing. Confirm that the 3.75 kV isolation rating meets the safety requirements of the target application. Ensure the 8-SOIC footprint matches the PCB layout constraints. Check for AEC-Q100 certification if the design mandates automotive-grade reliability standards. Validate input logic levels against the controller interface.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel driver with robust 125 kV/µs common-mode transient immunity is required. The 4.0 A symmetric drive current supports medium-power switching loads effectively. Consider the 30 ns propagation delay for timing-sensitive applications. The extended temperature range allows operation in harsh environments without derating. Compare against other Si823Hx variants if dual-channel functionality or different isolation voltages are needed.

Isolators - Gate Drivers Part Context

This part belongs to the Si823Hx family of digital isolators, which leverage Skyworks' proprietary silicon isolation technology. This technology replaces traditional optical or magnetic isolation methods, offering higher reliability and smaller form factors. The series is specifically engineered for demanding power electronics applications where signal integrity and isolation strength are critical.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes within the same family include SI823H9CC-AS and SI823H9CD-IS4R, though packaging and specific isolation ratings may vary. Verify pin compatibility and thermal characteristics before swapping. Alternative manufacturers offer similar isolated drivers, but parameter matching for CMTI and drive current is essential.