ACPL-C790-500E Detai LED explanation of pin function specifications and circuit principle instructions

The part number "ACPL-C790-500E" belongs to Broadcom, a well-known technology company. It is a High-Speed Optocoupler designed for data transmission, typically used in communications and industrial applications.

1. Package Type and Pin Count:

The ACPL-C790-500E typically comes in a SO-8 (Small Outline Package), which has 8 pins. This part is designed for high-speed, low-voltage differential signaling (LVDS) applications.

2. Pin Function List and Circuit Explanation:

Here is the complete list of the 8 pins for ACPL-C790-500E along with their detai LED functions:

Pin Number Pin Name Function Description 1 Anode This is the anode pin for the LED within the optocoupler. Current flows from this pin to the cathode, enabling optical transmission. 2 Cathode This is the cathode pin for the LED. The LED emits light based on the current supplied through the anode pin. 3 Ground (GND) This pin is the ground or negative connection. It connects to the low potential or common reference of the circuit. 4 Vcc This is the supply voltage pin for the optocoupler. It powers the internal circuitry of the optocoupler. 5 Output Pin 1 This is one of the output pins that carry the optically transmitted data from the photodiode within the optocoupler. 6 Output Pin 2 This is another output pin carrying the other differential data line for the LVDS communication. 7 Vcc Output This pin supplies a voltage for the operation of the photodiode. 8 Ground Output This is the ground connection for the internal photodiode of the optocoupler.

3. Pin Function Detailed Description:

Anode (Pin 1): The current entering this pin activates the internal LED, which then emits light. Cathode (Pin 2): The cathode pin is where the current flows out of the LED, completing the optical circuit. Ground (Pin 3): This pin connects to the common ground of the system, providing a reference point for the other pins. Vcc (Pin 4): The power supply pin which provides the operating voltage for the optocoupler. Output Pin 1 (Pin 5): This is the positive output pin of the optocoupler, used for receiving the photodetector output signal. Output Pin 2 (Pin 6): The negative output pin is the second differential signal line. Vcc Output (Pin 7): A secondary Vcc pin used for supplying voltage to the photodiode circuit. Ground Output (Pin 8): This pin provides the ground for the photodiode and its associated circuitry inside the optocoupler.

4. FAQs on the ACPL-C790-500E:

Q: What is the primary function of the ACPL-C790-500E optocoupler? A: The primary function of the ACPL-C790-500E is to transmit data optically through high-speed differential signaling (LVDS) in communication systems. Q: How many pins are in the ACPL-C790-500E? A: The ACPL-C790-500E has 8 pins. Q: What is the package type of the ACPL-C790-500E? A: The ACPL-C790-500E comes in a SO-8 package. Q: How do I power the ACPL-C790-500E? A: The ACPL-C790-500E is powered through its Vcc pin (Pin 4). Q: Can the ACPL-C790-500E handle high-speed data transmission? A: Yes, the ACPL-C790-500E is designed for high-speed data transmission using LVDS signaling. Q: Is the ACPL-C790-500E suitable for industrial applications? A: Yes, it is suitable for industrial applications requiring optical isolation and high-speed data transmission. Q: What is the voltage supply range for the ACPL-C790-500E? A: The ACPL-C790-500E operates typically within a supply voltage range of 3.3V to 5V. Q: What kind of data is transmitted using the ACPL-C790-500E? A: It transmits high-speed, differential data signals using LVDS. Q: What are the output signal types from the ACPL-C790-500E? A: The output signals are differential LVDS signals, which are suitable for high-speed communication. Q: Can the ACPL-C790-500E be used for isolated data communications? A: Yes, it is designed for isolated data communications between circuits with different ground potentials. Q: How is the optical isolation provided in the ACPL-C790-500E? A: The ACPL-C790-500E uses an LED and photodiode to provide optical isolation, preventing electrical noise from affecting the signal. Q: What is the role of Pin 5 (Output Pin 1)? A: Pin 5 is the positive output of the differential signal line, transmitting the received data. Q: What is the role of Pin 6 (Output Pin 2)? A: Pin 6 is the negative output of the differential signal line, complementing Pin 5 in the differential data transmission. Q: Is the ACPL-C790-500E designed for low-voltage systems? A: Yes, it is designed for low-voltage systems, typically operating at 3.3V or 5V. Q: How does the ACPL-C790-500E achieve high-speed data transfer? A: The ACPL-C790-500E uses LVDS (Low-Voltage Differential Signaling) to achieve high-speed, low-power data transmission. Q: What is the significance of the ground pins (Pin 3 and Pin 8)? A: Pins 3 and 8 provide the necessary ground reference for the LED and photodiode components inside the optocoupler. Q: Can the ACPL-C790-500E be used in harsh environments? A: Yes, it is suitable for industrial and automotive environments due to its robustness and optical isolation. Q: What is the typical data rate supported by the ACPL-C790-500E? A: The ACPL-C790-500E can support high-speed data rates, typically up to 200 Mbps or higher. Q: Can the ACPL-C790-500E be used for communication between separate circuit boards? A: Yes, it is ideal for isolating signals between separate circuit boards or systems. Q: What is the function of Pin 7 (Vcc Output)? A: Pin 7 is used to supply voltage to the internal photodiode circuitry, supporting the signal conversion process.

This concludes the detailed description for the ACPL-C790-500E. If you have any other specific questions or need further clarification, feel free to ask!