FOD270L Allicdata Electronics
Allicdata Part #:

FOD270L-ND

Manufacturer Part#:

FOD270L

Price: $ 0.00
Product Category:

Isolators

Manufacturer: ON Semiconductor
Short Description: OPTOISO 5KV DARL W/BASE 8DIP
More Detail: Optoisolator Darlington with Base Output 5000Vrms ...
DataSheet: FOD270L datasheetFOD270L Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Output Type: Darlington with Base
Supplier Device Package: 8-DIP
Package / Case: 8-DIP (0.300", 7.62mm)
Mounting Type: Through Hole
Operating Temperature: -40°C ~ 85°C
Vce Saturation (Max): --
Current - DC Forward (If) (Max): 20mA
Voltage - Forward (Vf) (Typ): 1.35V
Current - Output / Channel: 60mA
Voltage - Output (Max): 7V
Series: --
Input Type: DC
Rise / Fall Time (Typ): --
Turn On / Turn Off Time (Typ): 3µs, 50µs
Current Transfer Ratio (Max): 7000% @ 500µA
Current Transfer Ratio (Min): 400% @ 500µA
Voltage - Isolation: 5000Vrms
Number of Channels: 1
Part Status: Obsolete
Packaging: Tube 
Description

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Optoisolators, also known as optocouplers, photocouplers, photoMOS, optical isolators, or optical couplers, are used to isolate two circuits electrically, while still allowing for the transfer of signals between them. The FOD270L is a type of optoisolator known as a Transistor Photovoltaic Output (TPO) device, which utilizes a light-emitting diode (LED) to transmit information across two separate circuits while providing excellent isolation between them. A detailed examination of the FOD270L’s basic operation and application field is provided below.

Introduction to the FOD270L

The FOD270L is a high-performance optoisolator specifically designed for applications that require isolation and high common-mode transient immunity. The device consists of an LED input, a transistor output, and a zener diode between them. It offers isolation of 11.4 kVrms with a breakdown voltage of 1.5 kVrms, making it suitable for use in high-voltage applications.

The FOD270L is packaged in a small 8-pin dual in-line package (DIP), making it ideal for applications where space is an issue. It is available in two operating temperature ranges, 0 to +70°C and -40 to +105°C, so it can be used in a variety of operating environments. The device is also equipped with an integral lead frame slug which ensures good thermal contact between the device and the printed circuit board (PCB).

Working Principle of the FOD270L

The FOD270L operates on a very simple principle. An LED is used to transmit light across two circuits. On one circuit, the LED is connected to an input voltage. On the other circuit, the LED is connected to a transistor. When the LED is illuminated, the transistor receives the light and is activated. This in turn activates the output transistor on the second circuit, providing electrical isolation between the two circuits.

The FOD270L also has a zener diode connected between the LED and the transistor. This diode helps to protect the LED and the transistor from damage due to excessive voltage. The zener diode also regulates the voltage across the LED and the transistor, keeping them within an optimal operating range.

Applications of the FOD270L

The FOD270L is used primarily in applications that require optical isolation and high common-mode transient immunity. It is commonly used in medical devices to provide reliable isolation between critical patient circuits, such as oxygen level sensors and monitoring equipment. It is also used in instrumentation systems, communication systems, power supplies, switch-mode power supplies, and in many other types of equipment.

The FOD270L can also be used as a detector to detect the presence of a light source. For example, it can be used to detect the presence of a laser beam and then turn on a circuit to sound an alarm. It can also be used as a basic switch to detect the presence of an object and then turn on an LED.

Conclusion

The FOD270L is a versatile optoisolator that can be used in a variety of applications. Its LED input, transistor output, and integral zener diode provide reliable isolation and high common-mode transient immunity. It is available in two different temperature ranges, which makes it suitable for a variety of operating environments. Additionally, its small 8-pin DIP package makes it an ideal choice for space-constrained applications.

The specific data is subject to PDF, and the above content is for reference

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