Overview
The FOD3150AS is a high-performance gate drive optocoupler produced by Fairchild Semiconductor, now part of ON Semiconductor. This component is designed to drive most 800 V / 20 A IGBTs or MOSFETs, making it ideal for fast switching applications in motor control inverters and high-performance power systems. It utilizes Fairchild’s patented Optoplanar® coplanar packaging technology and an optimized IC design to achieve high noise immunity, characterized by high common mode rejection.
The FOD3150AS features a gallium aluminum arsenide (AlGaAs) light emitting diode optically coupled to an integrated circuit with a high-speed driver for a push-pull MOSFET output stage. This design ensures reliable and efficient operation in demanding environments.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| Output Current | - | - | - | 2.5 A | A |
| Supply Voltage Range | - | 15 V | - | 30 V | V |
| Propagation Delay | VDD = 30 V, VSS = Ground, TA = 25°C | - | - | 500 ns | ns |
| Pulse Width Distortion | VDD = 30 V, VSS = Ground, TA = 25°C | - | - | 300 ns | ns |
| Operating Temperature Range | - | -40°C | - | 100°C | °C |
| Input Forward Voltage | IF = 10 mA | 1.2 V | 1.5 V | 1.8 V | V |
| Common Mode Rejection | - | 20 kV/µs | - | - | kV/µs |
Key Features
- High noise immunity characterized by 20 kV/µs minimum common mode rejection.
- Use of P-channel MOSFETs at the output stage enables output voltage swing close to the supply rail.
- Wide supply voltage range from 15 V to 30 V.
- Fast switching speed with maximum propagation delay of 500 ns and maximum pulse width distortion of 300 ns.
- Under Voltage LockOut (UVLO) with hysteresis.
- Extended industrial temperature range of -40°C to 100°C.
- Safety and regulatory approvals including UL1577, 5000 V RMS for 1 minute and DIN EN/IEC60747-5-2.
- More than 8.0 mm clearance and creepage distance (option ‘T’).
Applications
- Industrial inverters.
- Uninterruptible power supplies (UPS).
- Induction heating systems.
- Isolated IGBT/Power MOSFET gate drive.
Q & A
- What is the maximum output current of the FOD3150AS?
The maximum output current of the FOD3150AS is 2.5 A.
- What is the operating temperature range of the FOD3150AS?
The operating temperature range is from -40°C to 100°C.
- What is the common mode rejection of the FOD3150AS?
The common mode rejection is a minimum of 20 kV/µs.
- What is the supply voltage range for the FOD3150AS?
The supply voltage range is from 15 V to 30 V.
- What are the safety and regulatory approvals for the FOD3150AS?
The FOD3150AS has approvals including UL1577, 5000 V RMS for 1 minute, and DIN EN/IEC60747-5-2.
- What is the propagation delay of the FOD3150AS?
The maximum propagation delay is 500 ns.
- What type of MOSFETs are used in the output stage of the FOD3150AS?
The output stage uses P-channel MOSFETs.
- What is the purpose of the Under Voltage LockOut (UVLO) feature?
The UVLO feature prevents the device from operating below a certain voltage threshold, ensuring stable operation.
- What are some typical applications of the FOD3150AS?
Typical applications include industrial inverters, uninterruptible power supplies, induction heating systems, and isolated IGBT/Power MOSFET gate drive.
- What packaging options are available for the FOD3150AS?
The FOD3150AS is available in DIP 8-pin and SMT 8-pin (lead bend) packages, with various packing methods including tubes and tape and reel.
