AC/DC Converter IC, TOPSwitch-GX Family, 210W, TO-220-6

The POWER INTEGRATIONS TOPSwitch-GX Family AC/DC Converter IC offers an extended power design with exceptional flexibility for off-line switching applications. Building upon a proven topology, this integrated device combines a high-voltage power MOSFET, PWM control, fault protection, and other essential control circuitry onto a single CMOS chip. This integration significantly reduces system cost and complexity by eliminating or minimising the need for external components.

Key Features and Benefits

This advanced converter IC incorporates a range of features designed to enhance performance and energy efficiency. Line feed-forward with maximum duty cycle reduction effectively rejects line ripple and limits the duty cycle at high line voltages. A fully integrated soft-start function ensures minimal stress and overshoot during start-up, whilst the externally programmable accurate current limit provides precise control. The wider duty cycle capability allows for increased power delivery with a smaller input capacitor.

Robust Protection Mechanisms

Reliability is paramount, and this device delivers with comprehensive protection features. Line under-voltage detection prevents turn-off glitches, and line over-voltage shutdown extends the line surge limit. The IC regulates smoothly down to zero load without the need for dummy loading. Additionally, a hysteretic thermal shutdown ensures automatic fault recovery, and large thermal hysteresis prevents printed circuit board overheating. With dimensions of 40 mm x 30 mm x 25 mm and a lightweight design of just 4.1 grams, it is suitable for compact installations.

Specifications

• Input Voltage Range: 85V AC to 265V AC
• Topology: Flyback
• Isolation: Isolated
• Power Switch Voltage Rating: 700V
• Switching Frequency: 132kHz
• Package: TO-220-6
• Mounting: Through Hole
• Operating Temperature Range: -40°C to 150°C