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SI83406BFA-IF
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Product Detailed Parameters
- Description：DGTL ISO 1.5KV 2CH SPI 32-VFDFN
- Series：Si834x
- Mfr：Skyworks Solutions Inc.
- Package：Tray
- Switch Type：General Purpose
- Number of Outputs：2
- Ratio - Input:Output：2 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)：1.25A
- Rds On (Typ)：78mOhm
- 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：-
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Overview
The SI83406BFA-IF is a dual-channel isolated smart switch from Skyworks Solutions, designed for power distribution applications. It integrates high-side and low-side N-channel MOSFETs with digital isolation. The device supports an output current of 1.25 A per channel and features a maximum on-resistance of 155 mΩ. Operating voltage ranges from 2.25 V to 5.5 V for the control side and 9 V to 32 V for the load side. Key timing parameters include a maximum turn-on time of 2.5 µs and a maximum fall time of 3.5 µs. It operates within a temperature range of -40°C to +125°C.
Feature Summary
- Integrates dual-channel isolated smart switches with integrated digital isolation for galvanic separation between control and load sides.
- Combines high-side and low-side switching capabilities in a single compact package for flexible power routing.
- Features fast switching speeds with defined turn-on and fall times to support high-frequency PWM control applications.
Applications
- Industrial automation power distribution systems
- Automotive electronic control units (ECUs)
- Robotics actuator control interfaces
Procurement Notes
Verify the specific suffix 'IF' indicates the tape-and-reel packaging format when ordering. Confirm that the 32-DFN (9x9) package dimensions align with your PCB footprint requirements. Ensure thermal management strategies account for the 125°C maximum junction temperature rating during operation. Cross-reference the datasheet revision date to confirm compatibility with your design specifications.
Selection Notes
Select this component when dual-channel isolated switching is required with moderate current handling up to 1.25 A. Compare against the SI83408BFA-IF if four channels are needed instead of two. Consider the 32-DFN package size constraints relative to available board space. Verify input voltage compatibility with the 9 V to 32 V load supply range before integration.
Part Context
This part belongs to the Si834xx family of isolated smart switches from Skyworks Solutions. These devices are engineered to replace traditional discrete MOSFET and gate driver combinations, reducing component count and board area. The family offers various channel configurations and package options to suit diverse power distribution needs in industrial and automotive sectors.
Replacement Considerations
The SI83406BFA-IFR is the reel-pack equivalent of this tray-packed component. For higher channel counts, consider the SI83408BFA-IF. Lower channel variants like the SI83404BFA-IF may be suitable if only two channels are utilized, though pinout compatibility must be verified.
