The TLP250 is a high speed gate drive optocoupler IC. This IC is widely used in many power electronic circuits. The internal structure of this IC consists of Infrared LED and integrated photo detector. This optocoupler IC provides galvanic isolation between the low voltage control circuit and high voltage section. Due to its high current carrying capability, it is used IGBT and power MOSFET gate driving. This article describes the Pinout, Specifications and Equivalent optocoupler IC for replacement.
What is TLP250 Optocoupler?
This TLP250 semiconductor is designed for driving the power electronic circuits like MOSFET and IGBT driving. This IC is comes in 8 pin DIP packaging. This IC includes a high gain amplifier stage which will allow the high gate current and it provides electrical isolation up to 2500Vrms. This IC is commonly used in,
✔ Inverters
✔ Motor drives
✔ SMPS
✔ UPS systems
✔ Industrial power control circuits
TLP250 Optocoupler Pinout
To check the pinout of the optocoupler IC, you just hold the IC numbering is facing front side. Notice the dot or notch in the IC and keep it comes in the upper left position and count the pin number from left top to bottom. then the pinout is given below,
TLP250 Optocoupler Power Mosfet Gate Driver-Package DIP-8
As an Amazon Associate, I earn from qualifying purchases.
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | NC | No Connection |
| 2 | Anode | LED Anode (Input +) |
| 3 | Cathode | LED Cathode (Input −) |
| 4 | NC | No Connection |
| 5 | GND | Output Ground |
| 6 | VO | Output |
| 7 | VO | Output |
| 8 | VCC | Supply Voltage |
Specifications
- Input Threshold Current maximum is 5mA
- Recommended Input Current is 7 to 10mA
- Dc supply Voltage (VCC) 10 to 35V
- Output Peak Current 1.5A
- Recommended Output Current is 0.5A
- Switching Time is 0.5µs
- Operating Frequency is Up to 25kHz
- Isolation Voltage is 2500Vrms
- Output Voltage is up to 35V
- Operating Temperature is –20 degree Celsius to +85 degree Celsius
- Package Type is 8-Pin DIP
Equivalent Optocouplers
Equivalent optocoupler IC for replacements are HCPL-3120, ACPL-3120, FOD3180, VO3120 and TLP350.
Advantages
Their are many advantages are available to select TLP250 as an optocoupler for your projects, which are High output drive capability, Excellent electrical isolation, Fast switching speed, Low input current requirement and Reliable operation in industrial environments
Applications
- IGBT gate driver circuits.
- Power MOSFET gate isolation.
- Industrial inverters.
- Air conditioner inverter boards.
- SMPS primary side isolation.
- Motor control and VFD systems.
