TNY280PN

The TNY280PN is a power integrated circuit (IC) from the TinySwitch-II series by Power Integrations. It is designed for use in low-power, off-line switch-mode power supplies. The IC combines a high-voltage power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry into a single monolithic device. This integration simplifies the design and reduces the component count for power supply manufacturers.
Key features of the TNY280PN include its ability to deliver up to 23 watts of power with high efficiency, typically used in applications such as chargers, adapters, and consumer electronics. It operates with a fixed frequency, which helps minimize noise and EMI, and features auto-restart protection to safeguard against overloads, open loops, and excessive temperatures.
The TNY280PN is housed in a DIP-8 package, which is easy to handle and suitable for through-hole PCB mounting. Its design allows for a compact, cost-effective power supply solution with excellent thermal performance and high reliability.

Equivalent products for the TNY280PN chip, a TinySwitch-II switcher IC by Power Integrations, include:
1. LNK562PN by Power Integrations: Part of the LinkSwitch-TN family.
2. VIPer22A by STMicroelectronics: A similar off-line switcher IC.
3. NCP1014 by ON Semiconductor: Integrates a 700V MOSFET with a current-mode controller.
4. TOPSwitch series by Power Integrations: Such as TOP223PN, offering similar functionalities.
Ensure compatibility in electrical specifications and application requirements when considering these alternatives.

The TNY280PN is a member of the TinySwitch-II family, designed for off-line switcher applications. Key features include:
1. Power Integration: It integrates a 700 V power MOSFET, oscillator, high-voltage switching current source, current limit, and thermal shutdown circuitry onto a single monolithic device.
2. EcoSmart Technology: Offers energy efficiency, reducing no-load and standby power consumption.
3. Frequency Modulation: Typically operates at 132 kHz but employs frequency jittering to reduce EMI and the size of the EMI filter.
4. Auto-Restart Protection: Provides safety by shutting down the device in a fault condition, such as output short or open loop.
5. Cycle-by-Cycle Current Limiting: Ensures reliable operation under overload conditions.
6. Under-Voltage Lockout (UVLO): Prevents erratic operation by shutting down the MOSFET when input voltage is too low.
7. Thermal Shutdown: Protects the device from overheating by automatically shutting down.
These features make the TNY280PN an efficient and reliable solution for low-power, high-efficiency power supply designs.

The TNY280PN is a member of the TinySwitch-II family of integrated circuits used for power supply applications. It comes in an 8-pin DIP package. Here's a brief overview of its pin functions:
1. DRAIN (Pin 1, 2, 8): These pins are internally connected and serve as the high-voltage power MOSFET drain connection. They are used for switching the primary winding of the transformer.
2. BYPASS/MULTI-FUNCTION (Pin 3): This pin is used to connect an external bypass capacitor for the internal regulator. It also serves multiple functions, including selecting current limit and enabling/disabling the line under-voltage function.
3. FEEDBACK (Pin 4): This input is used to control the duty cycle of the MOSFET, thereby regulating the output voltage. It is connected to an optocoupler or other feedback mechanism from the secondary side.
4. SOURCE (Pin 5, 6, 7): These pins are internally connected and act as the ground reference for the IC. They are connected to the source of the internal MOSFET.
The TNY280PN is designed for efficient AC-DC conversion with minimal external components.

The TNY280PN is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that focuses on the development and production of high-performance electronic components used in power conversion. Their products are primarily used in applications such as power supplies, LED lighting, motor drives, and renewable energy systems. The company is known for its innovative solutions that integrate high-voltage analog and mixed-signal circuits with digital control, enhancing the efficiency and reliability of electronic devices.

The TNY280PN is commonly used in power supply applications due to its integration of a high-voltage power MOSFET and a power controller on a single chip. Its application areas include:
1. AC-DC Converters: Efficiently converts AC power to DC, suitable for low-power applications.
2. Adapters and Chargers: Used in power adapters for devices like phones and laptops, ensuring compact design and energy efficiency.
3. Home Appliances: Powers small appliances, providing reliable energy conversion.
4. LED Drivers: Facilitates the powering of LED lighting with stable and efficient outputs.
5. Standby and Auxiliary Supplies: Supports standby power needs in larger systems with minimal energy usage.
These applications leverage its high efficiency, compact form factor, and protective features like over-temperature and overcurrent protection.

The TNY280PN is a Power Integrations TinySwitch-II family IC, and it comes in a DIP-8 (Dual Inline Package with 8 pins) package type. This package is commonly used for through-hole mounting on printed circuit boards.