Power Integrations TOPSwitch-GX AC/DC Converter IC 85-265V AC DIP-7

The Power Integrations TOPSwitch-GX AC/DC Converter IC is an integrated offline switched mode power supply chip for 85-265V AC input, supplied in a through-hole DIP-7 package with a 132kHz switching frequency.

The device is a flyback converter IC from the TOPSwitch-GX family. It integrates a high voltage power MOSFET, PWM control, fault protection, and other control circuitry onto a single CMOS chip. It converts a current at the control input to a duty cycle at the open drain output of the high voltage power MOSFET. During normal operation, the duty cycle decreases linearly as CONTROL pin current increases. Many functions are integrated to support design flexibility, performance, and energy efficiency.

Key Features

• Extended power range for higher power output
• Fully integrated soft-start for minimum stress and overshoot
• Externally programmable accurate current limit
• Wider duty cycle for more power and smaller input capacitor
• Line under-voltage detection prevents turn-OFF glitches
• Line overvoltage shutdown extends line surge limit
• Line feed-forward with maximum duty cycle reduction rejects line ripple
• Frequency jittering reduces EMI and EMI filtering
• Regulates to zero load without dummy loading
• Hysteretic thermal shutdown for automatic fault recovery and prevents PC board overheating
• Frequency lowered with load for high standby efficiency
• Shutdown and wake-up via LAN or input port
• Extremely low consumption in remote OFF mode (80mW at 110VAC, 160mW at 230VAC)

Dimensions and Weight

The device measures 40 mm x 30 mm x 25 mm and weighs 5.897 grams. Its through-hole DIP-7 package suits offline AC/DC switched mode power supply designs that require the features listed above.