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SI82394BD-IS3

SI82394BD-IS3

Skyworks Solutions Inc.
4A Gate Driver Capacitive Coupling 3250Vrms 2 Channel 14-SOIC
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Overview

The Skyworks Solutions Si82394BD-IS3 is a 4A, two-channel, isolated gate driver utilizing capacitive coupling technology. It provides robust isolation up to 3250Vrms and is designed for high-power switching applications. This device features a safe delayed startup time and includes UVLO fault detection with feedback.

Why Choose This Part

This gate driver offers high peak output current of 4A, enabling fast switching of large power MOSFETs and IGBTs. The 3250Vrms isolation voltage provides strong galvanic isolation for safety and noise immunity. Features like UVLO fault detection, automatic shutdown, and programmable dead time enhance system reliability and simplify design for critical power applications.

Applications

Brushless DC (BLDC) Motor Control
Driving power MOSFETs or IGBTs in three-phase BLDC motor control systems, providing isolated gate signals for high-side and low-side switches.
Switched-Mode Power Supplies (SMPS)
Controlling the primary-side switching elements in high-voltage DC-DC converters and isolated power supplies, ensuring safe operation and efficiency.
Industrial Inverters
Providing isolated gate drive for power semiconductors in industrial inverter applications such as variable frequency drives for AC motors.
Electric Vehicle (EV) Chargers
Managing power delivery in onboard and offboard EV charging systems, where reliable isolation and high current capability are essential.
Solar Power Inverters
Driving the power switches in solar inverters to convert DC power from solar panels into AC power for the grid, with necessary isolation for safety.

Key Specifications

Technology Capacitive Coupling
Mounting Type Surface Mount
Package / Case 14-SOIC (0.295", 7.50mm Width)
Approval Agency CQC, CSA, UR, VDE
Number of Channels 2
Voltage - Isolation 3250Vrms
Current - Peak Output 4A
Operating Temperature -40degC ~ 125degC
Rise / Fall Time (Typ) 12ns, 12ns (Max)
Supplier Device Package 14-SOIC
Voltage - Output Supply 10V ~ 24V
Current - Output High, Low 2A, 4A
Pulse Width Distortion (Max) 5.6ns
Propagation Delay tpLH / tpHL (Max) 55ns, 40ns
Common Mode Transient Immunity (Min) 35kV/us

Getting Started

To get started with the Si82394BD-IS3, engineers should refer to Skyworks Solutions' comprehensive datasheet and application notes. Evaluation boards, often available from the manufacturer, can help demonstrate the driver's performance and facilitate rapid prototyping. It is crucial to correctly implement the dead time programming and ensure proper power supply decoupling for optimal operation.