The part number "HCPL-0201-500E" refers to a high-speed optocoupler produced by Broadcom (previously Avago Technologies). This optocoupler is specifically designed for providing isolation between different parts of a circuit while allowing signal transmission through an optical medium, primarily used in communication systems and various other electronic applications.
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Pin Function and Specifications
The HCPL-0201-500E is an optocoupler with an 8-pin Dual In-line Package (DIP) configuration. The following table lists all 8 pins and their specific functions:
Pin Number Pin Name Pin Function Description 1 Anode (LED) Connects to the anode of the internal LED (Light Emitting Diode ) 2 Cathode (LED) Connects to the cathode of the internal LED 3 No connection This pin is unused and should be left unconnected 4 Output 1 (Collector) Output pin for the photo transistor collector (connected to the load or circuit requiring signal transmission) 5 Output 1 (Emitter) Output pin for the phototransistor emitter 6 No connection This pin is unused and should be left unconnected 7 Vcc ( Power Supply) This pin is used to provide the supply voltage for the internal circuit of the optocoupler 8 GND (Ground) Ground connection for the internal circuit and the device’s return pathDetailed Explanation of Package and Pinout:
The HCPL-0201-500E comes in a DIP-8 package, which has the following specifications:
Package Type: 8-pin Dual In-line Package (DIP) Dimensions: Standard DIP-8 form factor Mounting Type: Through-hole Temperature Range: -40°C to +85°C operating temperature Lead Material: Typically, the leads are made of tin-lead (SnPb) for reliable soldering.Functionality of Each Pin:
Pin 1 (Anode - LED): The anode of the LED inside the optocoupler is connected to this pin. This LED is the light-emitting element that provides optical isolation between the input and output sides of the device. Pin 2 (Cathode - LED): The cathode is connected to this pin, completing the circuit for the LED. The current flowing through the LED determines the optical signal's strength. Pin 3 (No connection): This is an unused pin and should be left open or unconnected. Pin 4 (Output 1 - Collector): This is the collector pin of the phototransistor. It is used to interface with the output stage of the circuit that receives the signal from the LED via light transmission. Pin 5 (Output 1 - Emitter): This is the emitter pin of the phototransistor. This pin is used to return the current when the transistor is conducting. Pin 6 (No connection): This is an unused pin and should be left unconnected. Pin 7 (Vcc - Power Supply): This pin provides the necessary voltage to power the internal circuitry of the optocoupler. Pin 8 (GND - Ground): This is the ground pin for the internal circuit, providing a return path for the current.20 Common FAQs Regarding the HCPL-0201-500E:
Q: What is the package type of HCPL-0201-500E? A: The HCPL-0201-500E comes in an 8-pin Dual In-line Package (DIP-8).
Q: How many pins does the HCPL-0201-500E have? A: The HCPL-0201-500E has 8 pins.
Q: What is the primary function of the HCPL-0201-500E? A: The primary function is optical isolation, where it separates the input and output circuits electrically but allows signal transmission via light.
Q: What is the operating temperature range of the HCPL-0201-500E? A: The operating temperature range is from -40°C to +85°C.
Q: Which pin connects to the LED anode? A: Pin 1 connects to the LED anode.
Q: What is the voltage range required for Vcc (Pin 7)? A: The voltage range for Vcc is typically 4.5V to 5.5V.
Q: Can I use HCPL-0201-500E for high-speed applications? A: Yes, this optocoupler is designed for high-speed data transmission applications.
Q: Which pins are unconnected in the HCPL-0201-500E? A: Pins 3 and 6 are unconnected and should be left open.
Q: How should I connect the load to the optocoupler? A: The load is typically connected to pins 4 (collector) and 5 (emitter), which are the output pins of the phototransistor.
Q: What is the maximum current rating for the LED (Pin 1 and 2)? A: The maximum LED current is typically 20mA.
Q: What is the role of the phototransistor in the HCPL-0201-500E? A: The phototransistor converts the optical signal from the LED into an electrical signal.
Q: Can I use the HCPL-0201-500E for isolating AC signals? A: Yes, it can be used to isolate AC signals, provided the voltage ratings are within the device's limits.
Q: What is the typical power supply for HCPL-0201-500E? A: The typical power supply is 5V DC.
Q: How does the HCPL-0201-500E achieve optical isolation? A: It uses an internal LED to generate light, which is detected by a phototransistor on the output side, effectively isolating the input and output circuits.
Q: What should I do if the optocoupler is not responding? A: Check the input current to the LED, verify the Vcc power supply, and ensure there is proper connection to the load.
Q: What is the response time of the HCPL-0201-500E? A: The typical rise time is 25ns, and the fall time is 25ns, making it suitable for high-speed data transmission.
Q: Is HCPL-0201-500E suitable for industrial applications? A: Yes, it is suitable for industrial applications due to its wide operating temperature range and reliability.
Q: How do I calculate the current-limiting resistor for the LED? A: The resistor can be calculated using Ohm’s Law, considering the LED forward voltage and the input voltage.
Q: Can the HCPL-0201-500E be used in noisy environments? A: Yes, it is designed to provide electrical isolation and signal integrity in noisy environments.
Q: What is the isolation voltage of HCPL-0201-500E? A: The isolation voltage is typically 2500V RMS.
This concludes a thorough description of the HCPL-0201-500E optocoupler with all pin functions, specifications, and a set of frequently asked questions.
