SI8234BC-D-IS1

Isolators - Gate Drivers Overview

The SI8234BC-D-IS1 is a galvanically isolated dual-channel gate driver from the Si823x series by Skyworks Solutions. It features high common-mode transient immunity and operates within an industrial temperature range of -40°C to +125°C. The device provides 3.75 kVrms isolation voltage with an 8 V under-voltage lockout (UVLO). Key electrical parameters include a maximum propagation delay of 45 ns, rise and fall times of 12 ns each, and a peak output current capability of 4 A. It consumes 3.5 mA of operating supply current and dissipates up to 1.2 W of power. The component is housed in a 16-SOIC narrow package.

Isolators - Gate Drivers Feature Summary

• Provides complete galvanic isolation between input and output circuits for safe signal transmission.
• Features high electromagnetic immunity to ensure reliable operation in noisy industrial environments.
• Integrates two independent drivers within a single compact package for space-efficient designs.

Isolators - Gate Drivers Applications

• Industrial motor control systems
• Power supply gate driving
• Inverter applications

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'IS1' corresponds to the tube packaging configuration rather than reel variants like 'IS1R'. Confirm that the 3.75 kVrms insulation rating matches the system requirements, distinguishing it from lower-rated versions such as the SI8234BB series which offers 2.5 kVrms. Ensure compatibility with TTL logic inputs and check for moisture sensitivity handling during assembly.

Isolators - Gate Drivers Selection Notes

Select this part when 3.75 kVrms isolation is required alongside high-speed switching capabilities. It is suitable for applications demanding low propagation delay and high peak output current. Compare against the SI8234BB series if lower isolation voltage is acceptable to potentially reduce cost. Consider the SOIC-16 footprint constraints and thermal dissipation limits of 1.2 W during design.

Isolators - Gate Drivers Part Context

This component belongs to the Si823x family of isolated gate drivers, designed for robust performance in harsh environments. The BC suffix indicates the specific insulation voltage rating of 3.75 kVrms. It serves as a modern replacement for older capacitive coupling technologies, offering improved reliability and higher common-mode transient immunity compared to legacy solutions.

Isolators - Gate Drivers Replacement Considerations

The SI8234BD-C-IS is listed as obsolete with the SI8234BD-D-IS identified as a direct substitute. Verify pinout and parameter compatibility before swapping. The SI8234BB-D-IS1 is a similar device but with reduced 2.5 kVrms isolation, requiring validation of insulation requirements.