Overview
The TLP250(LF5,F) is a photocoupler produced by Toshiba Semiconductor and Storage. It consists of a GaAlAs light emitting diode and an integrated optical detector, making it suitable for various high-performance applications. This component is particularly designed for gate driving circuits of IGBTs (Insulated Gate Bipolar Transistors) and power MOSFETs. The TLP250 is packaged in an 8-lead DIP (Dual In-Line Package) or 8-SMD (Surface Mount Device) with a gull wing structure, ensuring high isolation and reliability.
Key Specifications
| Characteristic | Symbol | Min | Typ. | Max | Unit |
|---|---|---|---|---|---|
| Input Forward Current | IF | - | - | 20 | mA |
| Supply Voltage | VCC | 10 | - | 35 | V |
| Output Current | IOPH, IOPL | - | - | ±1.5 | A |
| Switching Time (tpLH/tpHL) | - | 0.15 | 0.5 | μs | |
| Isolation Voltage | - | - | 2500 | Vrms | |
| Propagation Delay Time (L→H/H→L) | tpLH/tpHL | 0.15 | 0.5 | μs | |
| Junction Temperature | Tj | - | - | 125 | °C |
Key Features
- High Isolation Voltage: The TLP250 offers an isolation voltage of 2500 Vrms, ensuring high reliability and safety in applications requiring electrical isolation.
- Strong Drive Capability: It can drive output currents up to ±1.5 A, making it suitable for IGBT and power MOSFET gate driving circuits.
- Fast Switching Speed: The component features fast switching times with propagation delays as low as 0.15 μs, which is crucial for high-speed applications.
- Compact Package: Available in 8-lead DIP and 8-SMD gull wing packages, making it versatile for various design needs.
Applications
- IGBT Gate Drive: The TLP250 is widely used in gate driving circuits for IGBTs, particularly in high-power applications such as industrial inverters and power supplies.
- Power MOSFET Gate Drive: It is also suitable for driving power MOSFETs in various power management and control systems.
- Inverter Air Conditioners: The component is used in inverter air conditioners and other HVAC systems that require high-performance and reliable gate driving.
- Transistor Inverters: It is applied in transistor inverters for three-phase voltage source inverters, enabling functions like automatic torque compensation and overcurrent protection.
Q & A
- What is the TLP250(LF5,F) used for?
The TLP250(LF5,F) is used for gate driving circuits of IGBTs and power MOSFETs, particularly in high-power applications such as industrial inverters and power supplies.
- What is the isolation voltage of the TLP250?
The isolation voltage of the TLP250 is 2500 Vrms.
- What is the maximum output current of the TLP250?
The maximum output current of the TLP250 is ±1.5 A.
- What are the typical switching times of the TLP250?
The typical switching times (tpLH/tpHL) of the TLP250 are 0.15 μs to 0.5 μs.
- What package types are available for the TLP250?
The TLP250 is available in 8-lead DIP and 8-SMD gull wing packages.
- What is the junction temperature rating of the TLP250?
The junction temperature rating of the TLP250 is 125°C.
- Is the TLP250 UL-recognized?
Yes, the TLP250 is UL-recognized under UL 1577, File No.E67349.
- What are some common applications of the TLP250?
Common applications include IGBT gate drive, power MOSFET gate drive, inverter air conditioners, and transistor inverters.
- Does the TLP250 require any external components for operation?
Yes, a ceramic capacitor (0.1 μF) should be connected from pin 8 to pin 5 to stabilize the operation of the high gain linear amplifier.
- What is the input forward current rating of the TLP250?
The input forward current rating of the TLP250 is 20 mA.
