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LTV-817S-TA1

Name: LTV-817S-TA1
Rating: 4.7 (12 reviews)

OPTOISOLATOR 5KV 1CH TRANS 4-SMD

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規格

Series	LTV-8x7
Part Status	Active
Number of Channels	1
Voltage - Isolation	5000Vrms
Current Transfer Ratio (Min)	50% @ 5mA
Current Transfer Ratio (Max)	600% @ 5mA
Rise / Fall Time (Typ)	4µs, 3µs
Input Type	DC
Output Type	Transistor
Voltage - Output (Max)	35V
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
Base Product Number	LTV-817

概述

Description

The LTV-817S-TA1 is an optoisolator, also known as an optocoupler, designed for high-speed switching applications. It features a gallium arsenide (GaAs) infrared LED and a photodetector, typically a phototransistor, within a single package. The device provides electrical isolation between input and output, making it ideal for protecting sensitive components in circuits.
Key specifications include a high isolation voltage of up to 5,000 Vrms, a forward current of around 20 mA for the LED, and a typical CTR (current transfer ratio) ranging from 50% to 600%. The LTV-817S-TA1 operates over a wide temperature range, making it suitable for various environments.
Common applications include signal isolation in data communication, feedback circuits in power supplies, and interfacing between different voltage levels in electronic systems. Its compact size and robust performance make it a popular choice in consumer electronics, automotive, and industrial applications.

Features

The LTV-817S-TA1 is an optoisolator featuring a phototransistor output. Key features include:
1. Isolation Voltage: It provides a high isolation voltage of 5000 Vrms, ensuring safety between input and output circuits.
2. Input Current: The device operates with a low input current, typically around 10 mA, making it energy efficient.
3. Output Current: It supports a maximum output collector current of 50 mA, suitable for driving loads.
4. Temperature Range: The operational temperature range is -40°C to +100°C, accommodating various environmental conditions.
5. Switching Speed: It has a fast switching speed with a rise time of approximately 5 µs and a fall time of about 5 µs, enabling high-frequency applications.
6. Compact Package: Packaged in a 6-pin DIP, it allows for space-saving designs and easy integration into circuits.
Overall, the LTV-817S-TA1 is suitable for applications requiring signal isolation, such as in industrial controls, telecommunications, and consumer electronics.

Package

The LTV-817S-TA1 is an optoisolator packaged in a 4-pin DIP (Dual In-line Package). This package type allows for easy integration into circuits, providing electrical isolation between input and output.

Pinout

The LTV-817S-TA1 is an optoisolator (or optocoupler) with a total of 4 pins. Its primary function is to transmit signals while providing electrical isolation between its input (LED) and output (phototransistor) components.
Pin Configuration:
1. Pin 1: Anode of the input LED.
2. Pin 2: Cathode of the input LED.
3. Pin 3: Collector of the output phototransistor.
4. Pin 4: Emitter of the output phototransistor.
When a current flows through the LED (pins 1 and 2), it generates light that activates the phototransistor (pins 3 and 4), allowing current to flow from the collector to the emitter, effectively transferring the signal while maintaining electrical isolation between the two circuits. The LTV-817S-TA1 is commonly used in applications such as data communication, switching power supplies, and microcontroller interfaces.

Manufacturer

The LTV-817S-TA1 is manufactured by Lite-On Technology Corporation, a Taiwanese company known for producing optoelectronic components, including LEDs, photodetectors, and optoisolators. Founded in 1975, Lite-On operates in the electronics industry, providing a wide range of products for various applications, such as consumer electronics, automotive, and communication technologies. The company is recognized for its innovation in optoelectronics and aims to enhance connectivity and efficiency in electronic devices.

Application

The LTV-817S-TA1 is an optoisolator (photocoupler) commonly used in applications such as signal isolation, data communication, and switching power supplies. It is ideal for interfacing microcontrollers with high-voltage systems, protecting sensitive electronics from voltage spikes, and enabling safe communication between different circuit sections. Its high isolation voltage and fast switching speed make it suitable for industrial automation, telecommunications, and consumer electronics.

Equivalent

The LTV-817S-TA1 is an optoisolator (optocoupler) from Lite-On. Equivalent products include the Sharp PC817, Vishay VO617A, and Broadcom HCPL-817. These alternatives generally offer similar isolation voltage, input/output configurations, and performance characteristics. Always verify specifications to ensure compatibility for your specific application.