SI8271AB-IS

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SI8271AB-IS

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DGTL ISO 2.5KV 1CH GT DVR 8SOIC

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Specifications

Attribute Value
Series Si827x
Part Status Active
Technology RF Coupling
Number of Channels 1
Voltage - Isolation 2500Vrms
Common Mode Transient Immunity (Min) 150kV/µs
Propagation Delay tp LH / tp HL (Max) 60ns, 60ns
Pulse Width Distortion (Max) 8ns
Rise / Fall Time (Typ) 10.5ns, 13.3ns
Current - Output High, Low 1.8A, 4A
Current - Peak Output 4A
Voltage - Output Supply 4.6V ~ 30V
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Approval Agency CQC, CSA, UR, VDE
Base Product Number SI8271

Overview

Description

The SI8271AB-IS is an isolated gate driver designed by Silicon Labs. It is commonly used in applications that require galvanic isolation and efficient power switching, such as inverters, motor drives, and power supplies. The device features robust isolation capabilities, rated at 2.5 kV RMS, enabling it to protect sensitive circuits from high voltage transients and noise.
This gate driver supports a wide range of input voltages and provides strong output drive capabilities, making it compatible with various power transistors, including MOSFETs and IGBTs. The SI8271AB-IS offers fast switching speeds, enhancing overall system efficiency and performance.
Key features include low propagation delay, high common-mode transient immunity (CMTI), and short-circuit protection. The device is available in a compact SOIC package, making it easy to integrate into tight PCB layouts. Additionally, it meets international safety standards, ensuring reliability in critical applications.
Overall, the SI8271AB-IS is a versatile and reliable choice for engineers designing systems that demand high voltage isolation and efficient power control.

Equivalent

The SI8271AB-IS is a digital isolator commonly used for isolation in power electronics applications. Equivalent products might include:
1. TI ISO7320
2. ADI ADuM1201
3. Broadcom ACPL-M61L
4. Maxim MAX12931
These alternatives offer similar isolation capabilities and data transmission characteristics. However, exact equivalency in specifications, such as isolation voltage, data rate, and package type, should be verified based on application requirements.

Features

The SI8271AB-IS is a high-performance isolated gate driver designed for applications requiring robust isolation and precise control of power devices like MOSFETs and IGBTs. Key features include:
1. Isolation: It provides up to 2.5 kV RMS isolation, ensuring safety and reliability in high-voltage applications.
2. Output Channels: The device features dual-output channels, allowing for independent or complementary control of two power transistors.
3. Drive Strength: The SI8271AB-IS offers high drive strength with peak output currents up to 4 A, enabling fast switching of power devices.
4. Protection Features: Includes undervoltage lockout (UVLO) protection to prevent malfunction under low power conditions.
5. High-Speed Performance: It supports fast data rates with a maximum propagation delay of 60 ns, ensuring minimal latency and high efficiency.
6. Wide Temperature Range: Designed to operate across a wide temperature range from -40°C to +125°C, making it suitable for harsh environments.
7. Compact Package: Comes in a compact SOIC package, facilitating easy integration into various designs.
These features make the SI8271AB-IS ideal for industrial, automotive, and renewable energy applications.

Pinout

The SI8271AB-IS is a digital isolator designed by Silicon Labs, primarily used for isolating high-speed digital signals. It typically comes in a 16-pin SOIC package. Its primary function is to provide galvanic isolation between different sections of a circuit, enabling safe data transfer without direct electrical contact. This is particularly useful in applications where signal integrity must be maintained across different voltage domains or in environments with high electrical noise. The SI8271AB-IS isolates input and output signals, ensuring that disturbances on one side do not affect the other, improving safety and system reliability.

Manufacturer

The SI8271AB-IS is manufactured by Skyworks Solutions, Inc. Skyworks is a semiconductor company that specializes in the production of analog and mixed-signal semiconductors. Their products are widely used in wireless communications, automotive, broadband, and various other industrial applications. The company focuses on enabling the connectivity of various technologies, which is critical in the growing field of Internet of Things (IoT) and 5G infrastructure. Skyworks is known for its innovation and high-performance solutions, catering to a range of global markets with its broad portfolio of semiconductor products.

Application

The SI8271AB-IS is an isolated gate driver used primarily in power electronics applications. Key application areas include motor drives, renewable energy systems like solar inverters and wind turbines, power supplies, and industrial automation. It is particularly useful in applications requiring high-speed switching and enhanced noise immunity, such as inverters, DC-DC converters, and AC-DC converters. The device is well-suited for driving IGBTs and MOSFETs in these systems, providing isolation between the control and power stages to ensure safety and reliability.

Package

The SI8271AB-IS is an isolated driver IC typically used for driving power transistors. It comes in an 8-pin narrow-body SOIC (Small Outline Integrated Circuit) package, which is surface-mountable and suitable for compact designs.

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