Power Integrations TOP247YN TOPSwitch-GX Off-Line Switcher TO-220-6

The Power Integrations TOP247YN is an off-line switcher from the TOPSwitch-GX EcoSmart series, supplied in a 6-pin TO-220 package and rated for 165 W open frame output at 230 VAC.

Overview

This highly integrated device combines a high-voltage power MOSFET, PWM control, comprehensive fault protection and other control circuitry onto a single CMOS chip. The integration is intended to streamline power supply design, reduce overall system cost and support enhanced performance, design flexibility and energy efficiency.

Key Features

• Soft start for reduced inrush current
• Frequency jittering to lower electromagnetic interference (EMI)
• Wider maximum duty cycle (DCMAX) for greater power delivery
• Allows the use of smaller input capacitors
• Regulates down to zero load without the need for dummy loading
• Switching frequency of 132 kHz, enabling the use of smaller transformers and a more compact design
• Hysteretic thermal shutdown with a large thermal hysteresis for automatic fault recovery
• Current limit, frequency and PWM gain parameters with tighter temperature and absolute tolerances

Thermal and Reliability

The hysteretic thermal shutdown provides automatic fault recovery and helps prevent overheating of the printed circuit board (PCB). The device has an operating junction temperature range of -40 °C to 150 °C.

Specifications

• Output power (open frame): 165 W at 230 VAC; 125 W from 85 VAC to 265 VAC
• Output power (enclosed adapter): 85 W at 230 VAC; 55 W from 85 VAC to 265 VAC
• Input voltage range: 85 VAC to 265 VAC
• Switching frequency: 132 kHz (frequency pin to source) or 66 kHz (frequency pin to control)
• Power switch rating: 700 V, 2.2 mA
• Topology: Flyback
• Isolation: Isolated
• Package: 6-pin TO-220

Applications

The TOP247YN is suited to off-line power supply designs, including open frame power supplies and enclosed adapters. Its input voltage range of 85 VAC to 265 VAC and flyback topology support a range of mains-connected power supply designs.

Choose the Power Integrations TOP247YN when you need a highly integrated off-line switcher with built-in soft start, frequency jittering and thermal protection in a compact 6-pin TO-220 package.