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SI83404ABA-IFR
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Product Detailed Parameters
- Description：DGTL ISO 1.5KV 4CH SPI 32-VFDFN
- Series：Si834x
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR)
- 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
- 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：-
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Overview
The SI83404ABA-IFR is a four-channel isolated smart switch from the Si834xx series by Skyworks Solutions. It integrates high-side and low-side power switches with digital isolation, supporting an input voltage range of 2.25 V to 32 V. The device delivers a continuous output current of 700 mA per channel with a maximum on-resistance of 280 mOhms. It features fast switching times, with typical turn-on and turn-off delays around 2.1 us and 2.2 us respectively. Operating within a temperature range of -40°C to +125°C, it utilizes a 32-lead DFN package for compact surface-mount integration.
Feature Summary
- Integrates four independent high-side and low-side power switches with galvanic isolation
- Provides overcurrent protection with defined current limiting capabilities
- Supports wide input voltage ranges suitable for various industrial applications
- Features fast switching speeds for efficient power distribution control
Applications
- Industrial automation power distribution systems
- Motor control circuitry requiring isolated switching
- Power supply unit load management
- Telecommunications equipment power routing
Procurement Notes
Verify the specific suffix 'IFR' indicates reel packaging when ordering. Confirm RoHS compliance status through official datasheets. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Cross-reference pinouts with the latest Skyworks documentation to match PCB layout requirements accurately.
Selection Notes
Select this component for designs requiring integrated isolation and power switching in a single package. Compare on-resistance values against thermal dissipation needs. Evaluate switching speed requirements against system timing constraints. Consider the 32-DFN footprint for space-constrained layouts compared to larger packages.
Part Context
This part belongs to the Si834xx family of isolated smart switches. It combines digital isolators with power MOSFETs to simplify board design. The series offers multiple channel configurations and voltage ratings. This specific model provides four channels with balanced high-side and low-side control capabilities.
Replacement Considerations
SI83404AAA-IFR is a documented parametric equivalent within the same series. Verify electrical parameters such as on-resistance and switching times before substitution. Check package compatibility and pinout alignment. Consult manufacturer guidelines for any functional differences between variants.
