LNK364PN IC AC-DC Offline Switcher IC
LNK364PN IC Energy efficient off line switcher IC
LNK364PN is specifically designed to replace all linear and capacitor-fed (cap dropper) non-isolated power supplies at equal system cost while offering much higher performance and energy efficiency.
LNK364PN IC integrates a 700 V power MOSFET, oscillator, simple On/Off control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The start-up and operating power are derived directly from the voltage on the DRAIN pin, eliminating the need for a bias supply and associated circuitry in buck or flyback converters. The fully integrated auto-restart circuit in the LNK364 IC safely limits output power during fault conditions such as short-circuit or open loop,reducing component count and system-level load protection cost. A local supply provided by the IC allows use of a nonsafety graded optocoupler acting as a level shifter to further enhance line and load regulation performance in buck and buck-boost converters, if required.
LNK364PN AD-DC offline switcher IC combines a high-voltage power MOSFET switch with a power supply controller in one device. Unlike conventional PWM (pulse width modulator) controllers a simple ON/OFF control to regulate the output voltage. The controller consists of an oscillator, feedback (sense and logic) circuit, 5.8 V regulator, BYPASS pin undervoltage circuit, over-temperature protection, frequency jittering, current limit circuit, leading edge blanking and a 700 V power MOSFET. The LNK364PN AC-DC Off Line Switcher IC incorporates additional circuitry for auto-restart.
If you are in Nashik you can buy this Electronic Component at our local shop at New CBS, Nashik or you can place order online and get it delivered at your doorstep anywhere in India. |
Features of LNK364PN offline switcher IC
- Proprietary IC trimming and transformer construction techniques enable Clampless™ designs with LNK364 for lower system cost, component count and higher efficiency
- Fully integrated auto-restart for short circuit and open loop protection
- Self-biased supply – saves transformer auxiliary winding and associated bias supply components
- Frequency jittering greatly reduces EMI
- Meets HV creepage requirements between DRAIN and all other pins both on the PCB and at the package
- Lowest component count switcher solution
- Accurate hysteretic thermal shutdown protection – automatic recovery improves field reliability
- Universal input range allows worldwide operation
- Simple ON/OFF control, no loop compensation needed
- Eliminates bias winding – simpler, lower cost transformer
- Very low component count – higher reliability and single side printed circuit board
- Auto-restart reduces delivered power by 95% during short circuit and open loop fault conditions
- High bandwidth provides fast turn-on with no overshoot and excellent transient load response
Applications of LNK364PN AC-DC Offline Switcher IC
- Chargers/adapters for cell/cordless phones, PDAs, digital cameras, MP3/portable audio players, and shavers
- Supplies for appliances, industrial systems, and metering
Package Includes
1 x LNK364PN IC AC-DC Offline Switcher IC
