Overview
The FOD814ASD, produced by onsemi, is a 4-pin dual in-line package (DIP) phototransistor optocoupler. It consists of two gallium arsenide infrared emitting diodes connected in inverse parallel, which drive a silicon phototransistor output. This configuration allows for AC input response, making it suitable for various applications requiring isolation and signal transfer between different voltage levels.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Storage Temperature | −55 to +150 | °C |
| Operating Temperature | −55 to +105 | °C |
| Junction Temperature | −55 to +125 | °C |
| Lead Solder Temperature | 260 | °C (for 10 s) |
| Input Current (IS,INPUT) | 400 | mA |
| Output Power (PS,OUTPUT) | 700 | mW |
| Collector-Emitter Voltage (VCEO) | 70 | V |
| Current Transfer Ratio (CTR) | 50–150% | |
| Input-Output Isolation Voltage (VISO) | 5000 | VACRMS |
| Isolation Resistance (RISO) | 5x10^10 to 1x10^11 | Ω |
Key Features
- AC Input Response: Suitable for applications requiring AC signal handling.
- Current Transfer Ratio: Available in various CTR options, including 50–150% for the FOD814ASD.
- Safety and Regulatory Approvals: Compliant with UL1577, 5,000 VACRMS for 1 minute, and DIN EN/IEC60747-5-5.
- Pb-Free: Environmentally friendly packaging.
- High Isolation Voltage: Ensures safe electrical insulation with an input-output isolation voltage of 5000 VACRMS.
Applications
- AC Line Monitor: Ideal for monitoring AC power lines.
- Unknown Polarity DC Sensor: Can handle DC signals with unknown polarity.
- Telephone Line Interface: Suitable for interfacing with telephone lines.
- Power Supply Regulators: Can be used in power supply regulation circuits.
- Digital Logic Inputs: Applicable in digital logic circuits and microprocessor inputs.
Q & A
- What is the FOD814ASD used for?
The FOD814ASD is used for applications requiring isolation and signal transfer between different voltage levels, such as AC line monitoring, unknown polarity DC sensing, and telephone line interfaces.
- What is the package type of the FOD814ASD?
The FOD814ASD comes in a 4-pin dual in-line package (DIP).
- What is the current transfer ratio (CTR) range for the FOD814ASD?
The CTR range for the FOD814ASD is 50–150%.
- What are the safety and regulatory approvals for the FOD814ASD?
The FOD814ASD is compliant with UL1577, 5,000 VACRMS for 1 minute, and DIN EN/IEC60747-5-5.
- What is the maximum input-output isolation voltage for the FOD814ASD?
The maximum input-output isolation voltage is 5000 VACRMS.
- What is the operating temperature range for the FOD814ASD?
The operating temperature range is −55 to +105°C.
- Is the FOD814ASD Pb-Free?
- What is the collector-emitter voltage (VCEO) for the FOD814ASD?
The collector-emitter voltage (VCEO) is 70 V.
- What is the isolation resistance (RISO) for the FOD814ASD?
The isolation resistance (RISO) is 5x10^10 to 1x10^11 Ω.
- How is the FOD814ASD typically used in power supply regulators?
The FOD814ASD can be used in power supply regulators to provide isolation between the input and output stages, ensuring safe and reliable operation.
