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SI83418ADA-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：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：-
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Overview
The Si83418ADA-IFR is a four-channel power distribution IC featuring sinking outputs and SPI input control with channel status indicators. It operates within a supply voltage range of 2.25 V to 5.5 V for logic and 9 V to 32 V for loads. Each channel delivers an output current of 700 mA with a maximum current limit of 880 mA. The device exhibits a maximum on-resistance of 155 mOhms, with typical turn-on and turn-off times of 2.7 µs. It is housed in a 32-pin DFN package and functions across a temperature range of -40°C to +125°C.
Feature Summary
- Integrates four independent sinking power switches with digital SPI interface for precise control and monitoring.
- Provides real-time channel status feedback through dedicated indicator outputs for system diagnostics.
- Features low on-resistance for efficient power delivery and fast switching speeds for dynamic load management.
Applications
- Industrial automation systems requiring isolated smart switch control
- Power distribution units in embedded computing environments
- Automotive electronic control modules needing robust power switching
Procurement Notes
Verify the specific suffix IFR against official Skyworks documentation to confirm tape-and-reel packaging and moisture sensitivity level requirements. Ensure compatibility with SPI bus voltage levels and check for any regional distribution restrictions or lead time variations before finalizing procurement plans.
Selection Notes
Select this component when four-channel sinking output capability with integrated status reporting is required. Compare on-resistance and switching speed against alternatives like the Si83404AAA-IFR if lower resistance is not critical. Confirm that the 32-DFN package fits the thermal and spatial constraints of the target PCB design.
Part Context
This part belongs to the Si834xx series of isolated smart switches from Skyworks Solutions. It complements other variants such as the Si83418ADA-KIT evaluation board and the Si83414AAA-IF, offering similar functionality with specific packaging and interface configurations tailored for high-density power distribution applications.
Replacement Considerations
The Si83418ADA-DC serves as a daughter card kit alternative for development purposes. For direct replacement, verify pinout compatibility with the Si83414AAA-IF, noting differences in on-resistance and switching characteristics between these family members.
