SI83416BFA-IFR

Overview

The SI83416BFA-IFR is a dual-channel isolated smart switch from the Si834xx series, manufactured by Skyworks Solutions Inc. It integrates high-side and low-side power switches with digital isolation in a single package. The device supports a load supply voltage range of 2.25 V to 32 V and operates within an ambient temperature range of -40 °C to +125 °C. It features a DFN-32 surface-mount package and utilizes SPI communication for control. Key electrical parameters include a maximum on-resistance of 280 mΩ per channel, a continuous output current of 700 mA, and a current limit of 880 mA. Typical switching times are 2.3 µs for turn-on and 2.9 µs for turn-off.

Feature Summary

• Integrates dual-channel isolated smart switches with high-side and low-side configurations
• Provides digital isolation between control logic and power load circuits
• Features integrated overcurrent protection and thermal shutdown mechanisms
• Supports serial peripheral interface (SPI) communication for configuration and status monitoring

Applications

• Industrial motor control systems requiring isolated switching
• Power distribution units in automated manufacturing equipment
• Isolated load switching in automotive infotainment or body control modules
• Smart relay replacement applications in harsh industrial environments

Procurement Notes

Verify the specific suffix 'IFR' against official Skyworks documentation to confirm reel packaging and tape-and-reel specifications. Ensure compatibility with existing SPI bus protocols and voltage levels. Confirm that the DFN-32 footprint matches the target PCB design. Check for any regional export restrictions or RoHS compliance requirements relevant to the destination market before finalizing procurement.

Selection Notes

Select this component when dual-channel isolated switching is required with moderate current capabilities up to 700 mA. The wide input voltage range accommodates various system architectures. Consider the DFN-32 package size for space-constrained designs. Verify that the SPI interface speed and pinout align with the microcontroller or controller unit being used in the application design.

Part Context

The SI83416BFA-IFR belongs to the Si834xx family of isolated smart switches. This series combines power switching functionality with digital isolation technology. The family offers various channel counts and current ratings to suit different power distribution needs. The BFA variant specifically denotes the dual-channel configuration with integrated protection features.

Replacement Considerations

Consult official Skyworks documentation for verified cross-reference part numbers. Ensure any substitute maintains equivalent isolation voltage, current rating, and package dimensions. Verify SPI compatibility and pinout alignment before substitution.