FOD817BSD

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FOD817BSD

+物料清單

OPTOISOLATOR 5KV 1CH TRANS 4-SMD

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規格

屬性 價值
Part Status Active
Number of Channels 1
Voltage - Isolation 5000Vrms
Current Transfer Ratio (Min) 130% @ 5mA
Current Transfer Ratio (Max) 260% @ 5mA
Rise / Fall Time (Typ) 4µs, 3µs
Input Type DC
Output Type Transistor
Voltage - Output (Max) 70V
Current - Output / Channel 50mA
Voltage - Forward (Vf) (Typ) 1.2V
Current - DC Forward (If) (Max) 50 mA
Vce Saturation (Max) 200mV
Operating Temperature -55°C ~ 110°C
Mounting Type Surface Mount
Package / Case 4-SMD, Gull Wing
Supplier Device Package 4-SMD

概述

Description

The FOD817BSD is an optoisolator, also known as an optocoupler, which is commonly used in electronic circuits to provide electrical isolation between different sections of a system. It achieves this by using a light-emitting diode (LED) and a photodetector, such as a phototransistor, housed together in a single package.
The main function of the FOD817BSD is to allow signal transmission between two isolated circuits without a direct electrical connection, thus protecting sensitive components from high voltages or noise. This isolation is crucial in preventing ground loops and ensuring safety in high-voltage applications.
The FOD817BSD is designed for a wide range of applications, including switch mode power supplies, microprocessor system interfaces, and industrial control systems. It typically features a high isolation voltage between the input and output, a fast response time, and reliability across various environmental conditions. The device is often used in digital systems for signal isolation, level shifting, and interfacing different logic levels.

Equivalent

The FOD817BSD is an optocoupler with a phototransistor output. Equivalent products include the 4N35, EL817, PC817, and LTV-817. These alternatives offer similar functionality and specifications, such as input-output isolation and current transfer ratios, but ensure to verify specific parameters like input current, output voltage, and response time to match your application's requirements. Always consult the datasheets for precise compatibility and performance details.

Features

The FOD817BSD is a phototransistor optocoupler that is used for isolating different electrical circuits, providing protection and signal transmission between components operating at different voltage levels. Key features include:
1. Isolation Voltage: It offers a high isolation voltage of 5,000 Vrms, ensuring effective separation between input and output circuits.
2. Compact Package: Comes in a 4-pin DIP (Dual In-line Package) format, making it suitable for space-constrained applications.
3. Wide Operating Temperature Range: The device can operate within a temperature range of -55°C to +110°C, suitable for various environmental conditions.
4. High Collector-Emitter Voltage: The phototransistor can handle a collector-emitter voltage up to 80V.
5. Input-Output Coupling: The coupling is achieved using an LED and a phototransistor, ensuring reliable signal transmission.
6. UL Recognized: It is recognized by Underwriters Laboratories (UL), which attests to its safety and reliability.
These features make the FOD817BSD ideal for applications requiring electrical isolation like power supplies, microcontrollers, and other sensitive equipment.

Pinout

The FOD817BSD is an optocoupler, which is a component used to transfer electrical signals using light waves to provide isolation between its input and output. It typically comes in a 4-pin package. Here is a brief overview of its pin functions:
1. Pin 1 (Anode): This is the anode of the input LED. When current flows through this pin to the cathode, the LED emits light.
2. Pin 2 (Cathode): This is the cathode of the input LED. It completes the circuit for the LED when connected to a lower potential compared to the anode.
3. Pin 3 (Emitter): This pin is the emitter of the phototransistor on the output side. It is usually connected to the ground or the negative side of the output circuit.
4. Pin 4 (Collector): This pin is the collector of the phototransistor. It is connected to the positive side of the output circuit and is responsible for carrying the output current when the phototransistor is activated by the LED light.
The FOD817BSD is designed for applications requiring electrical isolation while allowing a signal to pass through.

Manufacturer

The FOD817BSD is manufactured by ON Semiconductor, which is now known as onsemi. onsemi is a leading global supplier of semiconductor-based solutions. The company designs and manufactures a wide range of products, including power and signal management, logic, discrete, and custom devices. These products are used in various applications across different sectors, such as automotive, industrial, consumer electronics, computing, and communications. onsemi focuses on providing energy-efficient innovations, contributing to a sustainable ecosystem with their advanced technologies.

Application

The FOD817BSD is an optoisolator used primarily for isolating different sections of a circuit to prevent high voltages from affecting the system receiving the signal. Its applications include:
1. Switching Power Supplies: Used for feedback control in switching regulators.
2. Microprocessor System Interfaces: Provides isolation for microcontroller inputs and outputs.
3. Signal Isolation: Useful in isolating low voltage and high voltage systems.
4. Data Communication: Ensures safe communication between systems operating at different voltage levels.
5. Industrial Controls: Used in PLCs and motor control applications for safety and noise immunity.
6. Consumer Electronics: Provides isolation in devices to protect user interfaces from power surges.
These applications benefit from its ability to maintain signal integrity while ensuring safety and reliability.

Package

The FOD817BSD is an optocoupler with a DIP-4 package type, meaning it has a dual in-line package with 4 pins.

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