K844P

Series:	--
Packaging:	Tube
Part Status:	Active
Number of Channels:	4
Voltage - Isolation:	5000Vrms
Current Transfer Ratio (Min):	20% @ 5mA
Current Transfer Ratio (Max):	300% @ 5mA
Turn On / Turn Off Time (Typ):	6µs, 5µs
Rise / Fall Time (Typ):	3µs, 4.7µs
Input Type:	AC, DC
Output Type:	Transistor
Voltage - Output (Max):	70V
Current - Output / Channel:	50mA
Voltage - Forward (Vf) (Typ):	1.25V
Current - DC Forward (If) (Max):	60mA
Vce Saturation (Max):	300mV
Operating Temperature:	-40°C ~ 100°C
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-DIP

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Optoisolators - Transistor, Photovoltaic Output

Optoisolators, sometimes referred to as optocouplers, are a type of electronic component designed to isolate the input/output circuit from each other. Optoisolators interact with their components through the use of light. These components typically have both an electrical input and an optical output. The main purpose of using an optoisolator is to protect the circuitry from high-voltage surges and noise, as well as to reduce ground loops and protect against electromagnetic interference (EMI). One type of optoisolator is the K844P, a special type of optoisolator which incorporates an n-channel Field Effect Transistor (nFET) photovoltaic output. This type of output is designed to provide fast turn-on and turn-off times, making it suitable for high speed applications. The K844P optoisolator consists of an infrared LED and a phototransistor, both of which are encapsulated in a single package. When the LED emits light, it excites the phototransistor, which then drives the nFET. When the LED is off, the nFET is turned off. The nFET then controls a transistor, boosting the current flows through it. The K844P can be used in many different types of applications. It can be used to isolate a controlling power supply from a controlled power supply, as a wireless link between two electronic components, or as a transceiver link in a communication network. In addition, it can be used to connect a microcontroller to an external circuit, providing isolation from interference. The working principle of the K844P optoisolator is quite simple. The infrared LED is connected to an electrical input, while the phototransistor is connected to the electrical output. When the LED is energized, it emits light which is detected by the phototransistor. This excites the phototransistor and, in turn, the nFET. The nFET then controls a transistor, boosting the current flows through it. Once the LED is turned off, the nFET is also turned off, thus shutting off the current flows and isolating the two circuits.The K844P optoisolator also offers several advantages when compared to traditional optoisolators. It is a much smaller package, allowing it to be easily integrated into circuits. Additionally, it offers higher switching speeds and longer life spans than traditional optoisolators. In conclusion, the K844P optoisolator is an ideal solution for a variety of applications. It offers high levels of isolation, fast switching speeds, low power consumption, and a small package size. Its versatility makes it suitable for a wide range of applications, from controlling power supplies to connecting microcontrollers to external circuits. Additionally, its photovoltaic output ensures that it can be used in high-speed applications. The K844P optoisolator is sure to be a valuable addition to any electronic design.

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