SI823H4CB-AS1R

Isolators - Gate Drivers Overview

The SI823H4CB-AS1R is a dual-channel, current-isolated gate driver from the Si823Hx series by Skyworks Solutions. It provides galvanic isolation for high-side and low-side switching applications with a 2.5 kVrms insulation rating. The device features a wide supply voltage range of 3 V to 5.5 V for the logic side and supports output voltages up to 30 V. It delivers a peak output current of 4 A with propagation delays as low as 30 ns. Designed for automotive environments, it operates between -40 °C and +125 °C and is housed in a compact DFN-14 package.

Isolators - Gate Drivers Feature Summary

• Provides robust 2.5 kVrms galvanic isolation between input and output circuits
• Delivers high peak drive current suitable for fast-switching power devices
• Optimized for automotive reliability with extended temperature operation capabilities

Isolators - Gate Drivers Applications

• Automotive motor control systems
• High-voltage DC/DC converter topologies
• Industrial inverter drives

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS1R against official Skyworks documentation to confirm reel packaging and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the DFN-14 package. Confirm that the 2.5 kV isolation rating meets system safety requirements. Validate operating temperature ranges for the intended environment.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with significant voltage separation is required. The dual-channel configuration simplifies half-bridge designs. Consider the 4 A output capability for driving medium-power MOSFETs or IGBTs. The automotive qualification makes it suitable for harsh electromagnetic environments where standard isolators may fail.

Isolators - Gate Drivers Part Context

This part belongs to the Si823Hx family of isolated gate drivers. These devices utilize Skyworks' proprietary capacitive isolation technology. The family offers various channel counts and isolation ratings. The SI823H4 variant specifically targets dual-channel applications requiring balanced performance for both high-side and low-side switches.

Isolators - Gate Drivers Replacement Considerations

Check Skyworks datasheets for direct pin-compatible alternatives within the Si823Hx series. Verify if other suffixes like AS1 offer identical electrical characteristics with different packaging options.