TLP250 Optocoupler Power Mosfet Gate Driver DIP-8

TLP250 Optocoupler Power MOSFET Gate Driver DIP-8 is a high-speed optically isolated gate driver used to control power MOSFETs and IGBTs. It integrates a GaAlAs infrared LED and a high-gain photodetector IC in a single 8-pin DIP package, providing strong isolation between input and output. Commonly used in inverter circuits, motor drives, and switching power supplies.

Key Features:

• High-Speed Switching: Capable of driving power MOSFETs and IGBTs at high frequencies.
• Built-in Amplifier Stage: Reduces external component count by including buffer and amplifier circuitry.
• High Isolation Voltage: Provides 2500Vrms isolation between input and output.
• Wide Supply Range: Operates from 10V to 30V on the output side.
• DIP-8 Package: Standard through-hole design for easy PCB integration.

Technical Specifications:

• Input Side: GaAlAs infrared LED
• Output Side: Integrated photodetector and amplifier circuit
• Isolation Voltage: 2500 Vrms (minimum)
• Supply Voltage: 10V to 30V (Vcc)
• Output Current: ±1.5A peak (sourcing and sinking)
• Propagation Delay: ~500ns (typical)
• Input Forward Current: 16mA (recommended)
• Operating Frequency: Up to 25kHz (typical), can go higher with careful design

Mechanical Specifications:

• Package Type: DIP-8 through-hole
• Pin Pitch: 2.54mm standard DIP
• Body Material: Molded epoxy, flame retardant
• Lead Material: Tin-plated copper
• Dimensions: Approx. 9.7mm × 6.5mm × 3.6mm

Mounting Options:

• Through-Hole Mount: Designed for traditional soldered PCB applications.
• Socket Compatible: Can be used with 8-pin IC sockets for quick replacement.

Schematic Diagram, Connection, Wiring and Pinout:

• Pin 1: Anode
• Pin 2: Cathode
• Pin 3: NC (Not connected)
• Pin 4: GND (Output side ground)
• Pin 5: V_O (Output to gate)
• Pin 6: V_O (Output to gate)
• Pin 7: V_CC (Power supply for output)
• Pin 8: NC

Datasheet and Documentation:

• Download TLP250 Datasheet (PDF)

Applications:

• MOSFET and IGBT Gate Driving: Used in high-power circuits for driving switching devices.
• Switch Mode Power Supplies (SMPS): Ensures safe isolation between control and power sections.
• DC-AC Inverters: Common in UPS and solar inverters.
• Motor Drivers: Used for high-side and low-side gate driving of H-bridges.
• Industrial Automation: Protects control systems from high-voltage environments.

Equivalent Models:

• HCPL-3120: Optically isolated gate driver with similar specs
• 6N137: High-speed logic gate driver (for logic-level signals)
• IR2110: Non-isolated dual MOSFET driver alternative

Package Includes:

• 1 x TLP250 Optocoupler Gate Driver DIP-8