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SI83401BBA-IF
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Product Detailed Parameters
- Description：DGTL ISO 1.5KV 1CH SPI 32-VFDFN
- Series：Si834x
- Mfr：Skyworks Solutions Inc.
- Package：Tray
- Switch Type：General Purpose
- Number of Outputs：1
- Ratio - Input:Output：1:01
- 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)：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 SI83401BBA-IF is a single-channel isolated smart switch from Skyworks Solutions, designed for power distribution applications. It integrates a high-side N-channel power switch with an SPI digital isolator, providing galvanic isolation up to 1500Vrms. The device supports a supply voltage range of 2.25 V to 32 V and delivers a continuous output current of 2.5 A. Key electrical parameters include a maximum on-resistance of 90 mOhms, a current limit of 3.2 A, and typical propagation delays of 2.1 µs for turn-on and 2.2 µs for turn-off. It operates within a temperature range of -40°C to +125°C and is housed in a compact 32-pin DFN package.
Feature Summary
- Integrates a high-side power switch with an SPI-controlled digital isolator for simplified system design
- Provides robust galvanic isolation to protect low-voltage control circuitry from high-voltage loads
- Features built-in protection mechanisms including overcurrent limiting and thermal shutdown
Applications
- Industrial motor control systems requiring isolated switching
- Power distribution units in automation equipment
- Smart grid infrastructure and energy metering devices
Procurement Notes
Verify the specific suffix IF against official Skyworks documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with SPI interface requirements and isolation voltage ratings for your target application environment before finalizing procurement decisions.
Selection Notes
Select this component when a single-channel isolated high-side switch is required with integrated digital isolation. It is suitable for applications needing high current capacity up to 2.5 A and robust protection features. Consider the 32-pin DFN package size and thermal performance constraints during PCB layout planning.
Part Context
This part belongs to the Si834xx family of isolated smart switches, which combine power switching capabilities with digital isolation technology. The family is designed to replace discrete solutions, reducing board space and complexity in power distribution networks.
Replacement Considerations
Consult official Skyworks substitution guides for verified alternatives. Generic equivalents may not match the integrated isolation or SPI control specifications.
