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SI83405BDA-IFR
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Product Detailed Parameters
- Description：DGTL ISO 1.5KV 1CH SPI 32-VFDFN
- Series：Si834x
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR)
- Switch Type：General Purpose
- Number of Outputs：1
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：N-Channel
- Interface：SPI
- Voltage - Load：9V ~ 32V
- Voltage - Supply (Vcc/Vdd)：2.25V ~ 5.5V
- Current - Output (Max)：2.5A
- Rds On (Typ)：41mOhm
- 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 SI83405BDA-IFR is a single-channel isolated smart switch from Skyworks Solutions, designed for power distribution applications. It features an N-channel output capable of handling up to 2.5 A with a maximum on-resistance of 38 mΩ. The device operates within a supply voltage range of 2.25 V to 32 V and supports SPI input control. It is housed in a compact 32-DFN (9x9 mm) package and functions across an industrial temperature range of -40°C to +125°C.
Feature Summary
- Integrates high-side and low-side switching capabilities within a single channel
- Provides digital isolation for safe control interface operation
- Includes built-in protection mechanisms against overcurrent and thermal events
Applications
- Industrial automation power distribution systems
- Automotive electronic control unit load management
- Telecommunications infrastructure power switching
Procurement Notes
Verify the specific suffix 'IFR' indicates reel packaging when sourcing components. Confirm that the 32-DFN footprint matches your PCB layout requirements. Ensure compatibility with SPI communication protocols used in your system design before finalizing procurement orders.
Selection Notes
Select this component for applications requiring a single high-current isolated switch. Compare its 2.5 A current rating against load requirements. Consider the 38 mΩ on-resistance for efficiency calculations. Verify that the 32-DFN package size fits within the available board space constraints.
Part Context
This part belongs to the Si834xx series of isolated smart switches. These devices combine power switching with digital isolation technology. The series offers various channel configurations and current ratings. This specific model provides a robust solution for managing loads in electrically noisy environments.
Replacement Considerations
Check datasheets for alternative Skyworks models with similar current ratings. Verify pinout compatibility for direct replacement. Ensure isolation voltage specifications meet or exceed original design requirements.
