SI8238AB-D-IS1R

Isolators - Gate Drivers Overview

The SI8238AB-D-IS1R is a dual isolated gate driver from the Si823x family, manufactured by Skyworks Solutions Inc. It features two independent channels with a peak output current of 4 A and an isolation voltage of 2.5 kVrms. The device operates within a supply voltage range of 6.5 V to 24 V and supports TTL logic inputs. Key electrical parameters include a maximum propagation delay of 45 ns, rise/fall times of 12 ns, and a working supply current of 3.5 mA. It is housed in a 16-SOIC package, rated for temperatures from -40°C to +125°C, and holds AEC-Q100 qualification.

Isolators - Gate Drivers Feature Summary

• Utilizes proprietary silicon isolation technology for high electromagnetic immunity
• Provides galvanic isolation between input and output domains
• Features TTL-compatible inputs with hysteresis for noise rejection
• Supports flexible grounding configurations for outputs

Isolators - Gate Drivers Applications

• Industrial motor drives
• Inverter systems
• Power supply control circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix IS1R corresponds to the 2.5 kVrms isolation rating and SOIC-Narrow-16 package configuration. Confirm AEC-Q100 automotive qualification status if required for the application. Check datasheet for moisture sensitivity level (MSL) handling requirements during assembly. Ensure input voltage limits (2.7 V to 5.5 V) match the control logic interface.

Isolators - Gate Drivers Selection Notes

Select this component when a dual-channel driver with 4 A peak current and 2.5 kVrms isolation is needed. Compare against SI8238AD variants if higher 5 kVrms isolation is required. Consider the 16-SOIC footprint for PCB layout constraints. Verify that the 45 ns propagation delay meets the switching speed requirements of the target power devices.

Isolators - Gate Drivers Part Context

This part belongs to the Si823x series of isolated gate drivers, which combines high integration with low propagation delay. The series includes variants with 0.5 A and 4.0 A output currents. The SI8238AB specifically denotes the dual-driver configuration with 4.0 A capability and 2.5 kVrms isolation, distinct from high-side/low-side or higher isolation versions.

Isolators - Gate Drivers Replacement Considerations

SI8238AD-D-IS1R offers 5 kVrms isolation with similar electrical characteristics. SI8238AB-D-IS3R uses a wider 14-pin package. Verify pinout compatibility and isolation voltage requirements before substituting.