TNY290PN AC/DC Switching Converter IC DIP-7

The TNY290PN is a highly integrated AC/DC switching converter IC from Power Integrations. It combines a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry. Housed in a DIP-7 package, it is ideal for low-power offline switcher applications including chargers, adapters, and household electronics.

Key Features of TNY290PN AC/DC Switching Converter IC:

• Integrated 700V Power MOSFET: Provides high-voltage switching capability.
• High Efficiency: Features auto-restart for enhanced energy savings and fault protection.
• Low Standby Power: Consumes less than 150mW at no load.
• Thermal Shutdown: Built-in thermal sensing protects the IC from overheating.
• Frequency Jittering: Reduces EMI and improves product reliability.

Technical Specifications of TNY290PN:

• Input Voltage Range: 85V to 265V AC
• Output Power: Up to 10W in open frame designs
• Switching Frequency: 132kHz (with jittering)
• Drain Voltage (Max): 700V
• Operating Temperature: -40°C to +150°C (junction)
• Package Type: DIP-7 Through-Hole

Mechanical Specifications of TNY290PN:

• Package: DIP-7 (Dual In-line Package)
• Mounting: Through-hole mounting
• Lead Pitch: 2.54mm standard spacing
• Body Width: Approx. 7.62mm

Dimensions:

• Body Length: 9.27mm
• Body Width: 7.62mm
• Body Height: 3.30mm
• Lead Length: 3.30mm – 5.20mm

Mounting Options:

• Through-Hole PCB: Designed for easy integration in standard PCBs.
• Sockets: Can also be inserted into compatible DIP-7 sockets for easy replacement.

Schematic Diagram, Connection, Wiring and Pinout of TNY290PN:

• Pin 1 (BP/M): Bypass/Multi-function
• Pin 2–3 (S): Source (Ground Reference)
• Pin 5–6 (D): Drain (High-voltage switching output)
• Pin 7 (NC): No connection
• Connection: Connect AC input through a rectifier and bulk capacitor; output via transformer and feedback circuit.

Datasheet of TNY290PN:

• Download TNY290PN Datasheet (PDF)

Applications of TNY290PN AC/DC Switching Converter IC:

• Mobile and Tablet Chargers: High-efficiency power conversion for portable devices.
• Set-Top Boxes: Compact and thermally stable SMPS design.
• LED Drivers: Used in driver circuits for high-efficiency LED lighting systems.
• Home Appliances: Embedded in control boards and power regulators.
• Industrial Controls: For low-power offline AC to DC conversion.

Equivalent of TNY290PN:

• TNY280PN: Lower power variant in the same family.
• TNY268PN: Alternative for slightly lower power applications.
• LNK304PN: Similar application profile with different architecture.

Package Includes:

• 1 x TNY290PN AC/DC Switching Converter IC DIP-7