TNY277GN-TL

TNY277GN-TL is a TinySwitch™-III energy-efficient, off-line switcher 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. This IC family uses an ON/OFF control scheme and offers a design flexible solution with a low system cost and extended power capability. The application includes chargers/adapters for cell/cordless phones, PDAs, digital cameras, MP3/portable audio, shavers, etc, PC standby and other auxiliary supplies, DVD/PVR and other low power set-top decoders, supplies for appliances, industrial systems, metering, etc.

• Self-biased: no bias winding or bias components, frequency jittering reduces EMI filter costs
• Pin-out simplifies heatsinking to the PCB, SOURCE pins are electrically quiet for low EMI
• Output overvoltage shutdown with optional zener
• Line undervoltage detect threshold set using a single optional resistor
• High bandwidth provides fast turn on with no overshoot and excellent transient load response
• Extended creepage between DRAIN and all other pins improves field reliability
• Easily meets all global energy efficiency regulations
• Output frequency in standard mode is 132KHz typical at (TJ = 25°C)
• DRAIN supply current is 365µA typical at (TJ = -40 to 125°C)
• Operating junction temperature range from -40°C to 150°C