Power Integrations TNY264PN TinySwitch-II Off-Line Switcher DIP8

Power Integrations TNY264PN is an off-line switcher with an integrated 700V power MOSFET in an 8-pin DIP package, designed for energy-efficient low-power power supply designs.

Overview

The TNY264PN is a member of the TinySwitch-II series of EcoSmart, enhanced energy-efficient low-power off-line switchers. The device integrates a 700V power MOSFET, an oscillator, a high-voltage switched current source, and current limit and thermal shutdown circuitry onto a single monolithic chip. It derives its start-up and operating power directly from the voltage on the DRAIN pin, removing the need for a bias winding and its associated circuitry, which simplifies design and reduces component count.

The TinySwitch-II architecture includes auto-restart, line undervoltage sensing, and frequency jittering. Its simple ON/OFF control scheme is designed to minimise audio frequency components, which helps keep audible noise to a minimum even with standard taped or varnished transformer construction. During output short circuit or open loop faults, the integrated auto-restart circuit limits output power, supporting system safety and reliability.

Key Features

• High efficiency that meets CEC, Energy Star, and EU energy efficiency requirements
• Up to 9W at 230VAC (6W from 85-265VAC) in an open-frame design
• Up to 5.5W at 230VAC (4W from 85-265VAC) in a non-ventilated enclosed adapter
• Quiet operation with ordinary dip-varnished transformers
• Operates at 132kHz, allowing a reduced transformer size with EF12.6 or EE13 cores
• Built-in current limiting and thermal shutdown for improved application safety
• Very tight tolerances and negligible temperature variation

Specifications

• Package: 8-pin DIP (DIP8)
• Width: 3
• Depth: 2.5
• Height: 4
• Weight: 0.001 gm

Choose the Power Integrations TNY264PN when a compact, energy-efficient off-line switcher in an 8-pin DIP package is required for open-frame or enclosed adapter power supply designs.