SI82520BD-AS3

Isolators - Gate Drivers Overview

The SI82520BD-AS3 is an automotive-grade, current-output isolated gate driver featuring a 5.0 kV isolation rating. It integrates high-side and low-side drivers in a wide-body SOIC-14 package. The device supports dual-channel operation with non-inverting logic configuration. Operating parameters include a supply voltage range of 3 V to 5.5 V, output voltage up to 30 V, and peak output current of 5.9 mA. Propagation delay is typically 30 ns, with rise and fall times of 12 ns each. It functions within a temperature range of -40°C to +125°C.

Isolators - Gate Drivers Feature Summary

• Provides galvanic isolation for driving high-side and low-side power switches in automotive applications.
• Delivers current-output drive capability suitable for connecting to external power stages.
• Ensures signal integrity through high common-mode transient immunity inherent to capacitive isolation technology.

Isolators - Gate Drivers Applications

• Automotive motor control systems
• Inverter bridge driving
• Isolated power supply gate control

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS3 against the manufacturer's official datasheet to confirm the exact packaging type and tape/reel specifications. Ensure that the AEC-Q100 qualification status aligns with the target automotive application requirements. Cross-reference the pinout diagram with the PCB footprint to prevent installation errors during assembly.

Isolators - Gate Drivers Selection Notes

Select this component when a robust 5 kV isolation barrier is required for automotive environments. The wide-body SOIC-14 package facilitates thermal dissipation and ease of handling compared to standard packages. Consider the current-output topology if the design utilizes external MOSFETs or IGBTs requiring dedicated drive currents rather than integrated outputs.

Isolators - Gate Drivers Part Context

This part belongs to the SI82520 series of digital isolator gate drivers from Skyworks Solutions. The series is designed to replace traditional optocouplers in high-reliability applications. It combines digital isolation capabilities with gate drive functionality to reduce system complexity and improve switching performance in electric vehicle and industrial power electronics.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes may include other variants within the SI8252x family, such as the SI82521BD-AS3, depending on specific timing or configuration needs. Verify compatibility by comparing isolation ratings, package dimensions, and electrical characteristics with the original specification sheet.