Overview
The TLP127, produced by Toshiba Semiconductor and Storage, is a high-performance photocoupler that integrates an infrared emitting diode (IRED) optically coupled to a Darlington photo transistor with an integral base-emitter resistor. This component is designed for surface mount assembly and is particularly suited for applications requiring high isolation and reliability.
The TLP127 features a small outline package, making it ideal for space-constrained designs. It is widely used in various industrial and telecommunications applications, including programmable controllers and DC-output modules.
Key Specifications
| Characteristic | Symbol | Rating | Unit |
|---|---|---|---|
| Collector-emitter voltage | VCEO | 300 V (min) | V |
| Current transfer ratio | CTR | 1000 % (min) | % |
| Isolation voltage | BVS | 2500 Vrms (min) | Vrms |
| Forward current | IF | 50 mA | mA |
| Forward voltage | Vf | 1.3 V (typ) | V |
| Collector current | IC | 150 mA | mA |
| Collector-emitter saturation voltage | VCE(sat) | 1.2 V (max) | V |
| Operating temperature range | Topr | -55°C to 100°C | °C |
| Package type | 4-Pin MFSOP | ||
| Mounting style | SMD/SMT |
Key Features
- High Isolation Voltage: The TLP127 offers an isolation voltage of 2500 Vrms, ensuring high electrical isolation between the input and output circuits.
- High Current Transfer Ratio: With a minimum current transfer ratio of 1000%, this photocoupler provides efficient signal transfer.
- Darlington Photo Transistor: The integral base-emitter resistor in the Darlington photo transistor enhances the component's switching characteristics.
- Compact Package: The 4-Pin MFSOP package is suitable for surface mount assembly, making it ideal for space-constrained designs.
- Wide Operating Temperature Range: The component operates reliably over a temperature range of -55°C to 100°C.
- UL, cUL, and VDE Approvals: The TLP127 is recognized by UL 1577, cUL, and VDE-approved, ensuring compliance with various safety standards.
Applications
- Programmable Controllers: The TLP127 is often used in programmable logic controllers (PLCs) to provide isolation between the control circuit and the output devices.
- Telecommunications: It is used in telecommunications equipment to ensure high isolation and reliability in signal transmission.
- Industrial Control Systems: The component is suitable for various industrial control systems where high isolation and efficient signal transfer are required.
- DC-Output Modules: The TLP127 is used in DC-output modules to provide a reliable and isolated interface between the input and output circuits.
Q & A
- What is the isolation voltage of the TLP127?
The isolation voltage of the TLP127 is 2500 Vrms.
- What is the current transfer ratio of the TLP127?
The minimum current transfer ratio of the TLP127 is 1000%.
- What is the maximum collector-emitter voltage of the TLP127?
The maximum collector-emitter voltage of the TLP127 is 300 V.
- What is the forward current rating of the TLP127?
The forward current rating of the TLP127 is 50 mA.
- What is the operating temperature range of the TLP127?
The operating temperature range of the TLP127 is -55°C to 100°C.
- What package type does the TLP127 come in?
The TLP127 comes in a 4-Pin MFSOP package.
- Is the TLP127 UL recognized?
Yes, the TLP127 is recognized by UL 1577 and also has cUL and VDE approvals.
- What is the typical forward voltage of the TLP127?
The typical forward voltage of the TLP127 is 1.3 V.
- What is the maximum collector current of the TLP127?
The maximum collector current of the TLP127 is 150 mA.
- What are some common applications of the TLP127?
The TLP127 is commonly used in programmable controllers, telecommunications, industrial control systems, and DC-output modules.
