PC817X0NIP1B this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PC817X0NIP1B 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 PC817X0NIP1B 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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Principal Role of PC817X0NIP1B
- Isolation Provider: The chip's essential function is to provide electrical isolation, protecting sensitive low-voltage components from high-voltage transients.
- Optical Communication Mechanism: Utilizes an LED and a phototransistor for signal transmission, ensuring no electrical connection between input and output.
- Key Specifications: The PC817X0NIP1B typically operates within a 5V to 35V range, with a forward current for the LED of around 50mA.
Applications Context
- Use in Power Supplies: Regularly employed in power supply units to isolate control logic from higher voltages.
- Microcontroller Integration: Apt for connecting microcontrollers to higher voltage or electrically noisy circuits while preserving the microcontroller's safety.
Circuit Application: Digital Signal Isolation
Here's an in-depth application of the PC817X0NIP1B in isolating a digital signal:
1. Objective of the Circuit
- Purpose: To isolate a digital signal from a sensor or other input device from a microcontroller, safeguarding the microcontroller from potential high-voltage spikes.
2. Input Side Connection
- Sensor to Optocoupler: Link the sensor's output to the anode of the PC817X0NIP1B's internal LED via a current-limiting resistor. Connect the cathode to the ground.
3. Output Side Configuration
- Optocoupler to Microcontroller: The phototransistor of the PC817X0NIP1B connects to a microcontroller input. The collector is tied to a positive voltage through a pull-up resistor, and the emitter goes to the ground.
4. Circuit Design Considerations
- Determining Resistor Value: Essential for setting the correct current through the LED, based on the sensor's output voltage and the LED's specifications.
- Microcontroller Input Compatibility: Ensure that the voltage level at the phototransistor's output matches the microcontroller's input requirements.
- Optocoupler Specifications Check: The isolation voltage and current ratings of the PC817X0NIP1B must be suitable for the digital signal's characteristics.
In this setup, the PC817X0NIP1B is used to provide vital isolation between a sensor (or other input devices) and a microcontroller. It exemplifies the optocoupler's crucial role in modern electronics, particularly in scenarios demanding robust electrical isolation. Designing circuits with this optocoupler requires careful consideration of the electrical properties of both the input and output devices, as well as the optocoupler's own ratings, to ensure safe and effective operation.
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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.
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