ChipApex | Global Electronic Components Supplier
SI83405BDA-IF
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
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：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：-
Download product information
Overview
The SI83405BDA-IF is a single-channel isolated smart power switch manufactured by Skyworks Solutions Inc. It features an N-channel output capable of delivering 2.5 A with a maximum on-resistance of 76 mOhms and a current limit of 3.56 A. The device operates within a supply voltage range of 2.25 V to 32 V and supports temperatures from -40°C to +125°C. Packaged in a 32-DFN (9x9 mm) surface-mount format, it integrates SPI control and channel status indicators for high-side and low-side applications.
Feature Summary
- Integrates digital isolation between control logic and power stage
- Provides SPI interface for configuration and monitoring
- Includes built-in channel status indicators for fault detection
Applications
- Industrial motor control systems
- Automotive lighting distribution networks
- High-reliability power switching infrastructure
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels due to potential counterfeiting risks. Confirm the specific suffix matches the required package and temperature grade. Request original datasheets and test reports to ensure compliance with specified electrical parameters before integration into production designs.
Selection Notes
Select this component when single-channel isolated switching with SPI programmability is required. Ensure the 2.5 A continuous current rating meets load demands. Verify that the 32-DFN footprint fits the PCB layout constraints. Consider thermal management requirements given the 76 mOhm resistance under operating conditions.
Part Context
This part belongs to the Si83405 family of isolated smart switches designed for robust power distribution. It combines high-voltage isolation with precise digital control, suitable for environments requiring reliable switching without galvanic connection between control and load sides.
Replacement Considerations
Check official Skyworks documentation for confirmed substitute part numbers with identical pinout and electrical specifications. Generic equivalents may lack the integrated digital isolation or SPI functionality.
