ChipApex | Global Electronic Components Supplier
SI83418BFA-IF
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：DGTL ISO 1.5KV 4CH SPI 32-VFDFN
- Series：Si834x
- Mfr：Skyworks Solutions Inc.
- Package：Tray
- Switch Type：General Purpose
- Number of Outputs：4
- Ratio - Input:Output：4 x 1:1
- Output Configuration：High Side
- Output Type：N-Channel
- Interface：Parallel, SPI
- Voltage - Load：9V ~ 32V
- Voltage - Supply (Vcc/Vdd)：2.25V ~ 5.5V
- Current - Output (Max)：700mA
- Rds On (Typ)：155mOhm
- Input Type：Non-Inverting
- Features：Slew Rate Controlled
- Fault Protection：Current Limiting (Fixed), Over Temperature, UVLO
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-DFN (9x9)
- Package / Case：32-VFDFN Exposed Pad
- Grade：-
- Qualification：-
Download product information
Overview
The SI83418BFA-IF is a four-channel isolated smart switch IC from Skyworks Solutions, designed for power distribution applications. It integrates high-side and low-side N-channel switches with SPI digital isolation. The device supports a control supply voltage of 2.25 V to 5.5 V and a load supply voltage of 9 V to 32 V. Each channel provides an output current of 700 mA with a maximum on-resistance of 155 mOhms. Current limiting is set at 880 mA. Operating temperatures range from -40°C to +125°C in a 32-pin DFN package.
Feature Summary
- Integrates four independent isolated smart switches with SPI interface for precise control
- Provides galvanic isolation between control logic and high-voltage load circuits
- Includes built-in protection features such as over-current limiting and thermal shutdown
Applications
- Industrial automation power distribution systems
- Isolated motor control circuits
- Smart sensor node power management
Procurement Notes
Verify the specific suffix IF against official Skyworks documentation to confirm pinout and packaging details. Ensure compatibility with SPI communication protocols and voltage levels. Check for moisture sensitivity labeling if storage conditions are critical. Confirm RoHS compliance status through manufacturer datasheets before integration into regulated products.
Selection Notes
Select this component when four isolated channels are required within a compact footprint. Compare with SI83418AFA-IF if sinking vs sourcing configurations differ for your load type. Verify that the 700 mA per channel rating meets peak load demands. Consider thermal performance in enclosed environments due to the DFN package constraints.
Part Context
Part of the Si834xx family of isolated smart switches. Designed for robust industrial environments requiring reliable power switching with digital isolation. Replaces discrete MOSFET and isolator combinations, reducing board space and design complexity.
Replacement Considerations
SI83418AFA-IF offers similar functionality but may differ in sourcing/sinking capabilities or internal protection thresholds. Verify electrical parameters and pin compatibility before substitution.
