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SI83402BBA-IFR
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Product Detailed Parameters
- Description：DGTL ISO 1.5KV 2CH SPI 32-VFDFN
- Series：Si834x
- Mfr：Skyworks Solutions Inc.
- Package：Tape & Reel (TR)
- Switch Type：General Purpose
- Number of Outputs：2
- Ratio - Input:Output：2 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)：1.25A
- Rds On (Typ)：78mOhm
- 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 SI83402BBA-IFR is a dual-channel isolated smart switch from Skyworks Solutions. It integrates high-side and low-side power switches with digital isolation, supporting a supply voltage range of 2.25 V to 32 V. The device delivers an output current of 1.25 A per channel with a maximum on-resistance of 160 mΩ. It features fast switching times, with a typical turn-on time of 1.2 µs and turn-off time of 1.5 µs. Current limiting is set at 1.7 A. Operating temperatures span from -40°C to +125°C in a 32-pin DFN package.
Feature Summary
- Integrates dual independent high-side and low-side power switches within a single isolated package
- Provides robust digital isolation between control logic and power stages for noise immunity
- Includes integrated current limiting protection to safeguard connected loads during fault conditions
Applications
- Industrial motor control systems requiring isolated switching
- Power distribution units in automation equipment
- Solid-state relay replacements in control panels
Procurement Notes
Verify the specific suffix IFR indicates reel packaging when ordering. Confirm the 32-DFN footprint matches your PCB layout requirements. Ensure input voltage levels align with the specified 2.25 V to 32 V operating range. Check thermal management needs given the 125°C maximum junction temperature rating. Validate isolation voltage specifications against system safety standards.
Selection Notes
Select this component for applications requiring dual-channel isolated switching with moderate current capabilities. Compare against single-channel variants if only one output is needed. Consider the DFN package size constraints relative to available board space. Evaluate thermal dissipation requirements based on load current and ambient temperature conditions.
Part Context
This part belongs to the Si834xx family of isolated smart switches. It complements other models like the SI83404AAA-IFR which offers four channels. The series focuses on integrating power switching and isolation to reduce component count in industrial designs.
Replacement Considerations
SI83402BBA-IF is the non-reel variant of the same device. SI83404AAA-IFR provides four channels instead of two.
