PC817X3NIP1B this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PC817X3NIP1B price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for PC817X3NIP1B to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.
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Core Functions of the PC817X3NIP1B
- Effective Isolation: The chip's principal function is to offer electrical isolation, which is crucial for safeguarding sensitive electronics from high voltage spikes.
- Optical Signal Transfer: It utilizes an LED and a phototransistor to transfer signals optically, eliminating the need for direct electrical connection.
- Operational Characteristics: The PC817X3NIP1B generally functions within a 5V to 35V range, and the LED's forward current is usually about 50mA.
Common Usage Scenarios
- Safety in Power Systems: It is often used in power supply circuits for isolating control circuitry from higher voltages.
- Microcontroller Applications: Suitable for interfacing microcontrollers with higher voltage or electrically noisy systems while ensuring the microcontroller's safety.
Circuit Example: Isolating a Sensor from a Microcontroller
Let's explore a detailed application of the PC817X3NIP1B in isolating a sensor from a microcontroller:
1. Purpose of the Circuit
- Aim: To isolate a sensor operating at a higher voltage from a microcontroller, preventing voltage spikes from affecting the microcontroller.
2. Connection on the Input Side
- Sensor to Optocoupler: Connect the sensor output to the anode of the PC817X3NIP1B's internal LED through a current-limiting resistor. The cathode should be tied to the ground.
3. Output Side Linkage
- Optocoupler to Microcontroller: The phototransistor section of the PC817X3NIP1B is connected to a microcontroller input. The collector pin should be connected to a positive voltage source, with a pull-up resistor, and the emitter to the ground.
4. Design Considerations
- Resistor Calculation: Crucial for determining the appropriate current through the optocoupler's LED, based on the sensor's output characteristics.
- Voltage Compatibility: Ensure that the microcontroller's input voltage levels are compatible with the output of the phototransistor.
- Optocoupler Specifications: Check that the PC817X3NIP1B's isolation voltage and current ratings are sufficient for the sensor's voltage levels.
In this application, the PC817X3NIP1B acts as an essential barrier, allowing a higher voltage sensor to interface with a low-voltage microcontroller while maintaining electrical isolation. This highlights the optocoupler's critical role in modern electronic design, especially in scenarios where electrical safety and signal integrity are paramount. When designing circuits with this optocoupler, it's vital to consider the electrical specifications of both the input and output devices to ensure optimal functionality and safety.
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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of PC817X3NIP1B.
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