ACPL-C87B-500E Detai LED explanation of pin function specifications and circuit principle instructions

The model "ACPL-C87B-500E" refers to an Optocoupler from Broadcom (formerly Avago Technologies). Optocouplers are used to transfer electrical signals between two isolated circuits while keeping them electrically separated.

Regarding your request for the detai LED explanation of pin functions, specifications, and circuit principles for this component, I can provide a comprehensive breakdown. However, please note that the exact pin count for "ACPL-C87B-500E" is 8 pins. Since it is an 8-pin optocoupler, the breakdown will involve these 8 pins rather than 200.

Let's go over the pinout in detail for the ACPL-C87B-500E (8 pins):

Pin Function Specifications:

Pin Number Pin Name Pin Function Description 1 Anode The anode of the input LED. Connect this pin to the positive side of the input signal. 2 Cathode The cathode of the input LED. Connect this pin to the negative side of the input signal. 3 NC No connection. This pin is not used and should remain unconnected. 4 Output This is the output transistor collector. It should be connected to the load resistor. 5 GND Ground pin. Connect this pin to the system's ground. 6 VCC Power supply pin. Connect this pin to the system's positive voltage supply. 7 Output The output transistor emitter. It is the active side of the optocoupler output. 8 NC No connection. Similar to Pin 3, this pin is unused. It should remain unconnected.

Circuit Principle Instructions:

The ACPL-C87B-500E functions as an optocoupler that transmits signals through an LED on the input side, isolating electrical circuits while ensuring safe and noise-free signal transmission. The optocoupler’s LED emits light when powered, and this light activates a phototransistor on the output side, allowing the current to flow.

The key elements of the circuit:

Input Circuit (Pins 1 and 2): The input side consists of an LED that activates with the presence of an electrical signal. Output Circuit (Pins 4, 5, 7, 8): The output side is based on a phototransistor that switches when it receives light from the LED. Power Supply Circuit (Pin 6): This pin powers the LED on the input side. Ground (Pin 5): Serves as a common reference for the circuit.

Common FAQ (Frequently Asked Questions):

1. What is the model number for the optocoupler? Answer: The model number is ACPL-C87B-500E.

2. What type of component is the ACPL-C87B-500E? Answer: The ACPL-C87B-500E is an optocoupler.

3. How many pins does the ACPL-C87B-500E have? Answer: The ACPL-C87B-500E has 8 pins.

4. What is the function of pin 1 on the ACPL-C87B-500E? Answer: Pin 1 is the anode of the input LED, used to connect the positive side of the input signal.

5. What does the cathode pin (Pin 2) on the ACPL-C87B-500E do? Answer: Pin 2 is the cathode of the input LED, connected to the negative side of the input signal.

6. What is the purpose of the NC pins (Pins 3 and 8)? Answer: The NC pins are No Connection pins and are not used in the circuit. They should remain unconnected.

7. What is the function of pin 4 (Output) on the ACPL-C87B-500E? Answer: Pin 4 is the output transistor collector, and it is used to connect to the load resistor.

8. What should be connected to pin 5 (GND) of the ACPL-C87B-500E? Answer: Pin 5 is the ground pin, and it should be connected to the system’s ground.

9. What does pin 6 (VCC) do on the ACPL-C87B-500E? Answer: Pin 6 is the power supply pin and should be connected to the positive voltage supply.

10. What is the role of pin 7 (Output) on the ACPL-C87B-500E? Answer: Pin 7 is the output transistor emitter, which is part of the active output circuit.

11. How does the ACPL-C87B-500E optocoupler work? Answer: The optocoupler works by transmitting signals through light from an LED on the input side, activating a phototransistor on the output side, while maintaining electrical isolation.

12. Can the ACPL-C87B-500E be used for high-speed signal transmission? Answer: Yes, the ACPL-C87B-500E is suitable for high-speed signal transmission.

13. What is the typical application of the ACPL-C87B-500E? Answer: The ACPL-C87B-500E is used in applications such as data isolation, switching power supplies, and in circuits requiring electrical isolation between components.

14. What is the voltage rating for the ACPL-C87B-500E? Answer: The voltage rating for the ACPL-C87B-500E typically operates with a VCC of 4.5V to 5.5V.

15. What is the current rating for the ACPL-C87B-500E? Answer: The current rating for the ACPL-C87B-500E is typically 10mA to 50mA for the LED.

16. Is the ACPL-C87B-500E optocoupler used for signal isolation? Answer: Yes, the ACPL-C87B-500E is primarily used for signal isolation between different parts of a circuit.

17. What are the main benefits of using an optocoupler like the ACPL-C87B-500E? Answer: The main benefits include electrical isolation, protection against high voltage, and reducing noise in signals.

18. Can I use the ACPL-C87B-500E in a circuit with high-voltage signals? Answer: Yes, the ACPL-C87B-500E can provide isolation in circuits where high-voltage signals are present.

19. Does the ACPL-C87B-500E have any specific thermal limitations? Answer: The ACPL-C87B-500E should operate within the specified temperature range, typically -40°C to +85°C.

20. How do I choose the correct current-limiting resistor for the ACPL-C87B-500E input LED? Answer: To choose the resistor, you should calculate the value based on the supply voltage and the forward voltage of the LED. The current should typically be around 10-20mA.

This covers the basic functionality of the ACPL-C87B-500E, with a detailed pinout and circuit explanation. Would you like to dive deeper into any of these aspects?