SI8621BB-B-IS

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SI8621BB-B-IS

+BOM

DGTL ISOLTR 2.5KV 2CH GP 8-SOIC

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Specifications

Attribute Value
Part Status Active
Base Product Number SI8621
Technology Capacitive Coupling
Type General Purpose
Isolated Power No
Number of Channels 2
Inputs - Side 1 / Side 2 1/1
Channel Type Unidirectional
Voltage - Isolation 2500Vrms
Common Mode Transient Immunity (Min) 35kV/µs
Data Rate 150Mbps
Propagation Delay tp LH / tp HL (Max) 13ns, 13ns
Pulse Width Distortion (Max) 4.5ns
Rise / Fall Time (Typ) 2.5ns, 2.5ns
Voltage - Supply 2.5V ~ 5.5V
Operating Temperature -40°C ~ 125°C
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Packaging Tube

Overview

Description

The SI8621BB-B-IS is a digital isolator manufactured by Silicon Labs. It is designed for applications requiring electrical isolation between different parts of a system, offering enhanced safety and signal integrity. This device uses Silicon Labs' proprietary capacitive isolation technology, which enables high data rates and reliability while minimizing energy consumption.
Key features of the SI8621BB-B-IS include:
1. Isolation Rating: It provides a robust isolation barrier, typically rated at 2.5 kVRMS.
2. Data Rate: Supports high-speed communication, with data rates up to 150 Mbps.
3. Low Propagation Delay: Ensures minimal delay in signal transmission, crucial for timing-sensitive applications.
4. CMR Performance: Offers excellent Common Mode Rejection (CMR), enhancing noise immunity.
5. Low Power Consumption: Optimized for energy efficiency, which is beneficial for battery-powered devices.
6. Wide Temperature Range: Suitable for use in demanding environments, typically supporting a range from -40°C to 125°C.
Common applications include industrial automation, power supplies, and motor control systems. Its compact design and reliability make it a preferred choice for engineers looking to implement robust isolation in their designs.

Equivalent

The SI8621BB-B-IS is a digital isolator from Silicon Labs. Possible alternatives might include the following digital isolators from other manufacturers:
1. ADUM1201 from Analog Devices.
2. ISO7421 from Texas Instruments.
These alternatives offer similar isolation and channel configuration features. However, it’s important to verify specifications like data rate, isolation voltage, and package type to ensure compatibility with your specific application.

Features

The SI8621BB-B-IS is a digital isolator component known for its robust isolation capabilities. Key features include:
1. Isolation Rating: It provides a high isolation voltage rating, typically around 2.5 kV RMS, making it suitable for applications requiring strong electrical isolation between systems.
2. Data Rate: Capable of supporting data rates up to 150 Mbps, ensuring high-speed data transmission across the isolation barrier.
3. Low Propagation Delay: Features minimal propagation delay and pulse-width distortion, which helps maintain the integrity of high-speed data signals.
4. Supply Voltage: Operates with a wide supply voltage range, often between 2.5 V to 5.5 V, providing flexibility in various applications.
5. Temperature Range: It functions reliably over a broad temperature range, typically from -40°C to +125°C, making it suitable for industrial environments.
6. Package Options: Available in compact and standard packages, facilitating integration into different design footprints.
These features make the SI8621BB-B-IS ideal for a range of applications, including industrial automation, power supplies, and communication interfaces where reliable isolation and high-speed data transfer are critical.

Pinout

The SI8621BB-B-IS is a digital isolator manufactured by Silicon Labs. It typically comes in an 8-pin package. The primary function of this component is to provide galvanic isolation between different parts of a circuit, especially useful in applications requiring isolation for safety or noise reduction.
Key features include:
- Isolation Rating: It provides up to 5 kV RMS isolation.
- Data Rate: Supports data rates up to 150 Mbps.
- Channel Configuration: It features a single channel in one direction (unidirectional).
- Power Supply: Operates over a wide supply voltage range, typically from 2.5 V to 5.5 V.
This isolator ensures signal integrity by using capacitive coupling technology, which is robust against electromagnetic interference (EMI) and minimizes crosstalk. Each pin on the device is designated for specific signal or power connections necessary for its operation. Always refer to the specific datasheet of the device for detailed pin assignments and circuit integration guidelines.

Manufacturer

The SI8621BB-B-IS is manufactured by Skyworks Solutions. Skyworks Solutions is a technology company that specializes in semiconductors and is known for producing analog semiconductors, primarily for radio frequency (RF) and mobile communications systems. The company develops a variety of components used in wireless communication, including amplifiers, modulators, and other analog and mixed-signal devices. Skyworks serves a wide range of markets, including mobile communications, automotive, broadband, and the Internet of Things (IoT), providing essential components that enable connectivity and communication technologies across various applications.

Application

The SI8621BB-B-IS is a digital isolator used in applications requiring electrical isolation and signal integrity. Key application areas include industrial automation, power supply systems, communications infrastructure, and medical equipment. It is used to provide circuit protection and improve the reliability of systems by isolating different sections of a circuit, thus preventing noise and surges from affecting sensitive components. Additionally, it is often employed in motor control systems and renewable energy applications such as solar inverters, where robust isolation is crucial for safety and performance.

Package

The SI8621BB-B-IS is an isolator device packaged in a narrow-body SOIC-8 (Small Outline Integrated Circuit) form. This package type is commonly used for isolators to provide a compact and efficient means of integrating the component onto a circuit board.

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