SI82B47AGE-IS4

Isolators - Gate Drivers Overview

The SI82B47AGE-IS4 is a single-channel isolated gate driver from Skyworks Solutions. It features capacitive coupling technology for signal transmission across the isolation barrier. The device provides a unidirectional channel with a 3.75 kVrms isolation rating. It delivers a peak output current of 6 A to drive power switches. The supply voltage range spans from 3 V to 20 V. It operates within a temperature range of -40°C to +125°C and is housed in an SSO-8 package.

Isolators - Gate Drivers Feature Summary

• Utilizes silicon dioxide (SiO2) capacitive coupling for high-speed signal isolation
• Provides robust 3.75 kVrms isolation capability between input and output domains
• Features a unidirectional signal path optimized for single-switch control applications

Isolators - Gate Drivers Applications

• Industrial motor drives requiring galvanic isolation
• Inverter circuits in renewable energy systems
• High-voltage switching power supplies

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'AGE' against official Skyworks documentation to confirm the exact isolation rating and pinout configuration. Ensure compatibility with the target PCB footprint, specifically the SSO-8 package dimensions. Cross-reference the datasheet for thermal management requirements given the 6 A output capability. Confirm that the 3.75 kVrms rating meets the safety standards required for the end application environment.

Isolators - Gate Drivers Selection Notes

Select this component when a unidirectional gate drive signal is sufficient for the design. The 3.75 kVrms isolation is suitable for applications where lower isolation stress exists compared to 5 kV or 6 kV variants. The 6 A output current supports medium-power MOSFETs and IGBTs. Consider the CMOS logic interface compatibility with the controlling microcontroller or DSP. Evaluate if the unidirectional nature aligns with the system's feedback or status monitoring needs.

Isolators - Gate Drivers Part Context

This part belongs to the SI82B4x series of isolated gate drivers. Unlike higher-rated siblings such as the SI82B40 or SI82B41 which offer 6 kV isolation, this variant specifies 3.75 kVrms. It shares the same SSO-8 package and 6 A drive strength as other members of the family but differs in its isolation specification and channel directionality.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes include SI82B47ABE-IS4 and SI82B47ACE-IS4. Verify that the alternative part number matches the required isolation voltage and unidirectional functionality. Check for any differences in propagation delay or rise/fall times if timing precision is critical.