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SI83412BCA-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
- 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 SI83412BCA-IF is a dual-channel isolated smart switch from the Si834xx series, manufactured by Skyworks Solutions Inc. It integrates two independent high-side and low-side power switches with integrated digital isolation. The device supports sourcing and parallel channel configurations with individual channel status indicators and VDD2 warning capabilities. It operates within a supply voltage range of 2.25 V to 5.5 V for the control side and 9 V to 32 V for the load side. The component features an on-resistance of 155 mΩ maximum and handles up to 1.25 A per channel. It is housed in a 32-lead DFN (9x9 mm) package.
Feature Summary
- Integrates dual isolated smart switches with independent high-side and low-side control channels
- Provides real-time channel status indicators and VDD2 warning functionality for system monitoring
- Supports sourcing and parallel output configurations for flexible load driving applications
Applications
- Industrial motor control systems requiring isolated switching
- Power distribution units in automation equipment
- Smart relay replacement in industrial control panels
Procurement Notes
Verify the specific suffix 'IF' indicates the tape-and-reel packaging variant when ordering. Confirm that the 32-lead DFN footprint matches your PCB layout requirements. Ensure thermal management solutions are adequate for the operating temperature range of -40°C to +125°C. Cross-reference the datasheet for exact pinout definitions to prevent integration errors during assembly.
Selection Notes
Select this component when dual-channel isolated switching is required with integrated fault indication. Compare against single-channel alternatives if only one load needs control. Consider the 155 mΩ on-resistance for power loss calculations. Verify compatibility with SPI or GPIO control interfaces used in the target system design.
Part Context
This part belongs to the Si834xx family of isolated smart switches, designed for robust power management in noisy environments. It combines power switching capability with high-voltage isolation in a compact form factor. The series is intended for applications demanding reliable switching with diagnostic feedback.
Replacement Considerations
Check for parametric equivalents such as the SI83412BBA-IFR for reel-based procurement. Verify pin-to-pin compatibility before substituting with other dual-channel isolated switches from different manufacturers.
