SI8421BB-D-IS

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SI8421BB-D-IS

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DGTL ISOLTR 2.5KV 2CH GP 8-SOIC

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Spécifications

Attribut Valeur
Part Status Not For New Designs
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) 25kV/µs (Typ)
Data Rate 150Mbps
Propagation Delay tpLH / tpHL (Max) 9.5ns, 9.5ns
Pulse Width Distortion (Max) 2.5ns
Rise / Fall Time (Typ) 3.8ns, 2.8ns
Voltage - Supply 2.7V ~ 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
Base Product Number SI8421

Présentation

Description

The SI8421BB-D-IS is a digital isolator device typically used in applications requiring electrical isolation between different parts of a circuit. It belongs to the family of Silicon Labs' digital isolators, which are designed to provide high noise immunity and reliable data transfer across isolation barriers. This model specifically offers two channels of isolation and operates with low power consumption, making it suitable for use in industrial automation, medical equipment, and power supply systems.
Key features of the SI8421BB-D-IS include:
1. Isolation Voltage: It provides galvanic isolation up to a specified voltage level, usually around 2.5 kV RMS.
2. Data Rate: Supports high-speed data rates, often up to a few Mbps, ensuring efficient data communication.
3. Temperature Range: Typically operates over a wide temperature range, accommodating various environmental conditions.
4. Compact Package: Comes in a small form factor, facilitating easy integration into space-constrained designs.
These features make the SI8421BB-D-IS an effective solution for applications needing robust isolation and reliable data transmission.

Equivalent

The SI8421BB-D-IS is a digital isolator. Equivalent products include the Texas Instruments ISO7421, Analog Devices ADuM1210, and Broadcom ACPL-M21L. These products offer similar isolation voltage ratings and channel configurations, though specific electrical characteristics may vary. Always check the datasheets to ensure compatibility in terms of operating temperature, isolation voltage, data rate, and supply voltage before making a substitution.

Features

The SI8421BB-D-IS is a digital isolator from Silicon Labs designed for signal isolation in industrial applications. Key features include:
1. Isolation Technology: It uses Silicon Labs' proprietary CMOS-based isolation technology to provide robust signal isolation.
2. Data Rate: The device supports high-speed data rates up to 150 Mbps, making it suitable for a wide range of applications.
3. Isolation Voltage: It offers a high isolation voltage, typically rated at 2.5 kVrms, ensuring safety and performance in electrically noisy environments.
4. Channels: The SI8421BB-D-IS provides two independent unidirectional channels for data transfer.
5. Low Power Consumption: It is designed for low power consumption, aiding in efficient energy use.
6. Wide Temperature Range: The device operates across a broad temperature range, typically from -40°C to +125°C, making it suitable for demanding industrial conditions.
7. Compact Package: Available in a compact SOIC package, facilitating easy integration into existing designs.
These features make the SI8421BB-D-IS ideal for applications requiring reliable isolation and high-speed data transfer in industrial and other demanding environments.

Pinout

The SI8421BB-D-IS is a digital isolator from Silicon Labs, part of the Si84xx series. It is designed to provide high-speed digital signal isolation with a robust isolation barrier. This device typically features a dual-channel configuration and offers bidirectional communication capabilities.
The SI8421BB-D-IS comes in an 8-pin package. The pin functions are generally as follows:
1. VDD1 - Power supply for the input side.
2. GND1 - Ground for the input side.
3. A1 - Input channel 1.
4. A2 - Input channel 2.
5. VDD2 - Power supply for the output side.
6. GND2 - Ground for the output side.
7. B1 - Output channel 1.
8. B2 - Output channel 2.
The SI8421BB-D-IS ensures electrical isolation between its input and output sides and is commonly used in applications requiring signal isolation for noise reduction or safety purposes, such as in industrial automation, power supply systems, and communication interfaces.

Manufacturer

The SI8421BB-D-IS is manufactured by Silicon Labs (Silicon Laboratories Inc.). Silicon Labs is a technology company that specializes in the design and development of semiconductors, software, and solutions for a wide range of applications, including Internet of Things (IoT), industrial automation, consumer electronics, and other areas. They are known for providing integrated circuits (ICs) and other technological solutions that offer energy efficiency, connectivity, and performance. The company focuses on developing products that serve industries such as communication, industrial, and automotive, aiming to enable innovation and connectivity in a wide variety of devices and systems.

Application

The SI8421BB-D-IS is a digital isolator used in various applications requiring signal isolation. Key application areas include industrial automation systems, where it ensures safe communication between different system components. It is also used in power supply and control systems, providing isolation to protect sensitive circuits. Additionally, it finds applications in medical devices, offering isolation to maintain patient safety. Other areas include data communication systems and renewable energy systems like solar or wind power installations.

Package

The SI8421BB-D-IS is an isolator IC from Silicon Labs, typically provided in a compact 8-pin Wide Body SOIC (Small Outline Integrated Circuit) package. This package type is designed for applications requiring robust isolation and compact PCB footprint.

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