TNY278GN

The TNY278GN is an energy-efficient, Off-line Switcher IC with enhanced flexibility and extended power range. It incorporates a 700V power MOSFET, oscillator, high voltage switched current source, current limit (user selectable) and thermal shutdown circuitry. It uses an ON/OFF control scheme and offers a design flexible solution with a low system cost and extended power capability.

• Higher current limit extends peak power or in open frame applications, maximum continuous power
• Lower current limit improves efficiency in enclosed adapters/chargers
• Tight I²f parameter tolerance reduces system cost
• Maximizes MOSFET and magnetic power delivery
• No bias winding or bias components self-biased
• Frequency jittering reduces EMI filter cost
• Pin-out simplifies heat sinking to PCB
• SOURCE pins are electrically quiet for low EMI
• Output overvoltage shutdown with optional Zener
• Line under-voltage detect threshold set using a single optional resistor
• Extended creepage between DRAIN and all other pins improves field reliability

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Consumer Electronics, Industrial