Specifications
| Attribute | Value |
| Package / Case | Tube |
| Series | TinySwitch®-II |
| Part Status | Not For New Designs |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Flyback |
| Duty Cycle | 65% |
| Frequency - Switching | 132kHz |
| Power (Watts) | 23 W |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Short Circuit |
| Control Features | EN |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Supplier Device Package | 8-PDIP-B |
Overview
Description
TNY268PN is a model from the TinySwitch-II series, produced by Power Integrations. It is used in power supply designs to deliver efficient, cost-effective power conversion. The device integrates a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry onto a monolithic IC. This integration allows for fewer components, reducing overall system complexity and cost. TNY268PN is commonly used in low-power applications, such as chargers, adapters, and standby power supplies.
Key features include its EcoSmart technology for energy efficiency, providing excellent standby power performance. The adjustable current limit offers flexibility in design, allowing optimization for thermal performance or overload power. Its auto-restart feature provides output short-circuit and open-loop protection. The TNY268PN also supports under-voltage and over-temperature protection, enhancing reliability.
Operating over a wide input voltage range, the TNY268PN is suitable for global power systems. Its compact DIP-8 package makes it convenient for space-constrained designs, offering engineers a practical solution for developing compact, efficient power supplies.
Key features include its EcoSmart technology for energy efficiency, providing excellent standby power performance. The adjustable current limit offers flexibility in design, allowing optimization for thermal performance or overload power. Its auto-restart feature provides output short-circuit and open-loop protection. The TNY268PN also supports under-voltage and over-temperature protection, enhancing reliability.
Operating over a wide input voltage range, the TNY268PN is suitable for global power systems. Its compact DIP-8 package makes it convenient for space-constrained designs, offering engineers a practical solution for developing compact, efficient power supplies.
Equivalent
The TNY268PN is part of the TinySwitch-II series by Power Integrations and is used for low-power offline switcher applications. Equivalent or similar products include other models from the TinySwitch series such as TNY266, TNY267, and TNY269, depending on the specific application and power requirements. Additionally, similar functionalities can be found in chips from other manufacturers like the LNK series by Power Integrations or Fairchild's FSD series. Always check the datasheets for compatibility.
Features
The TNY268PN is a member of the TinySwitch-II family, produced by Power Integrations, which integrates a 700V power MOSFET, oscillator, high voltage switched current source, current limit, and thermal shutdown circuitry onto a single CMOS chip. Key features include:
1. High Efficiency: It features a high-voltage power MOSFET with a low RDS(on), contributing to low energy consumption.
2. Design Flexibility: Offers a wide input voltage range and can be used for various power supply applications, simplifying design requirements.
3. Built-in Protection: Integrated thermal shutdown, current limit, and auto-restart functions protect the device from damage due to overload conditions.
4. Low Component Count: The integrated solution reduces the number of external components required, minimizing the overall size and cost.
5. EcoSmart Technology: Designed for low standby power consumption, making it energy-efficient and suitable for compliance with energy-saving regulations.
6. Applications: Ideal for use in chargers, adapters, and auxiliary supplies in PC and industrial applications.
These features make the TNY268PN a versatile and efficient option for power supply design.
1. High Efficiency: It features a high-voltage power MOSFET with a low RDS(on), contributing to low energy consumption.
2. Design Flexibility: Offers a wide input voltage range and can be used for various power supply applications, simplifying design requirements.
3. Built-in Protection: Integrated thermal shutdown, current limit, and auto-restart functions protect the device from damage due to overload conditions.
4. Low Component Count: The integrated solution reduces the number of external components required, minimizing the overall size and cost.
5. EcoSmart Technology: Designed for low standby power consumption, making it energy-efficient and suitable for compliance with energy-saving regulations.
6. Applications: Ideal for use in chargers, adapters, and auxiliary supplies in PC and industrial applications.
These features make the TNY268PN a versatile and efficient option for power supply design.
Pinout
The TNY268PN is a member of the TinySwitch-II family of integrated off-line switcher ICs designed for low-power switch-mode power supply applications. It is typically housed in an 8-pin DIP (Dual Inline Package).
Here is a brief overview of its pin functions:
1. BP/M (Bypass/Multi-Function): Connects to an external bypass capacitor. It also provides a means for programming operating frequency.
2. D (Drain): The high-voltage power MOSFET drain connection. It is connected to the primary winding of the transformer.
3. S (Source): The power MOSFET source connection. This pin is the return path for the primary winding current.
4. EN/UV (Enable/Undervoltage): This pin is used to enable or disable the switching operation and also for undervoltage lockout.
The remaining pins may be designated for other operational or support features, such as additional connections for the source, but the main functional pins are listed above. The TNY268PN is designed for efficiency and compact design in power supplies, offering features like auto-restart for short-circuit protection and frequency jittering for EMI reduction.
Here is a brief overview of its pin functions:
1. BP/M (Bypass/Multi-Function): Connects to an external bypass capacitor. It also provides a means for programming operating frequency.
2. D (Drain): The high-voltage power MOSFET drain connection. It is connected to the primary winding of the transformer.
3. S (Source): The power MOSFET source connection. This pin is the return path for the primary winding current.
4. EN/UV (Enable/Undervoltage): This pin is used to enable or disable the switching operation and also for undervoltage lockout.
The remaining pins may be designated for other operational or support features, such as additional connections for the source, but the main functional pins are listed above. The TNY268PN is designed for efficiency and compact design in power supplies, offering features like auto-restart for short-circuit protection and frequency jittering for EMI reduction.
Manufacturer
The TNY268PN is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that specializes in the development and production of high-performance electronic components used in high-voltage power conversion. The company is known for its innovative solutions that improve the efficiency and reliability of power supplies and electronic systems. Its products are widely used in various applications, including consumer electronics, communication devices, home appliances, and industrial equipment. Power Integrations focuses on providing energy-efficient and cost-effective solutions to meet the growing demand for advanced power management technologies.
Application
The TNY268PN is a highly integrated switch-mode power supply chip used primarily in power conversion applications. It is commonly employed in:
1. Consumer Electronics: For powering small appliances, chargers, and adapters.
2. LED Lighting: In LED drivers for efficient energy conversion.
3. Industrial Controls: For power management in control systems.
4. Home Appliances: Used in power circuits of devices like microwaves and refrigerators.
5. Standby Power Supplies: To maintain high efficiency in low-load conditions.
Its benefits include reduced component count, high efficiency, and cost-effectiveness, making it suitable for a variety of low-power applications.
1. Consumer Electronics: For powering small appliances, chargers, and adapters.
2. LED Lighting: In LED drivers for efficient energy conversion.
3. Industrial Controls: For power management in control systems.
4. Home Appliances: Used in power circuits of devices like microwaves and refrigerators.
5. Standby Power Supplies: To maintain high efficiency in low-load conditions.
Its benefits include reduced component count, high efficiency, and cost-effectiveness, making it suitable for a variety of low-power applications.
Package
The TNY268PN is a power IC from the TinySwitch-II family, manufactured by Power Integrations. It comes in a DIP-8 (Dual Inline Package with 8 pins) form factor, which is suitable for through-hole mounting on printed circuit boards.
