Overview
The TLP250, produced by Toshiba Semiconductor and Storage, is an optically isolated gate driver IC designed for driving the gate terminals of high-voltage switches such as IGBTs (Insulated Gate Bipolar Transistors) and power MOSFETs. This component integrates an infrared emitting diode and a photodetector within an 8-lead DIP package, providing electrical isolation between the low and high power circuits. This isolation is crucial for ensuring safe and reliable operation in high-voltage applications.
Key Specifications
| Characteristic | Symbol | Min | Typ. | Max | Unit |
|---|---|---|---|---|---|
| Input Threshold Current | IF | - | - | 5 mA | - |
| Supply Current | - | - | - | 11 mA | - |
| Supply Voltage | VCC | 10 V | - | 35 V | - |
| Output Current | IOPH, IOPL | - | - | ±1.5 A | - |
| Switching Time (tpLH/tpHL) | tpLH, tpHL | - | 0.15 μs | 0.5 μs | - |
| VISO | 2500 Vrms | - | - | - | |
| Propagation Delay Time | tpLH, tpHL | - | 0.15 μs | 0.5 μs | - |
Key Features
- Optical isolation between input and output sides, ensuring electrical safety and reliability.
- Integrated GaAlAs light-emitting diode and photodetector.
- Suitable for both high and low side drive configurations of IGBTs and power MOSFETs.
- High output current capability of ±1.5 A.
- Fast switching times with propagation delay times of up to 0.5 μs.
- UL, cUL, and VDE-approved for compliance with various safety standards.
- 8-lead DIP package for easy integration into various circuits.
Applications
- Gate driving circuits for IGBTs and power MOSFETs in industrial inverters and power supplies.
- Solar inverters and power inverters, including pure sine wave and modified sine wave inverters.
- Induction heating systems.
- Air conditioner and other high-voltage appliance control systems.
Q & A
- What is the TLP250 used for? The TLP250 is used for driving the gate terminals of high-voltage switches such as IGBTs and power MOSFETs.
- What type of package does the TLP250 come in? The TLP250 comes in an 8-lead DIP package.
- What is the maximum output current of the TLP250? The maximum output current of the TLP250 is ±1.5 A.
- What is the isolation voltage of the TLP250? The isolation voltage of the TLP250 is 2500 Vrms.
- What are the typical applications of the TLP250? Typical applications include solar inverters, induction heating systems, and gate driving circuits for IGBTs and power MOSFETs.
- What safety certifications does the TLP250 have? The TLP250 is UL, cUL, and VDE-approved.
- How does the TLP250 achieve electrical isolation? The TLP250 achieves electrical isolation through optical coupling using a light-emitting diode and a photodetector.
- What is the supply voltage range for the TLP250? The supply voltage range for the TLP250 is 10-35 V.
- What is the switching time of the TLP250? The switching time (tpLH/tpHL) of the TLP250 is up to 0.5 μs.
- Why is electrical isolation important in the TLP250? Electrical isolation is crucial for ensuring safe and reliable operation in high-voltage applications by preventing electrical noise and voltage spikes from affecting the control circuitry.
