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NCP1230A Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP1230A Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 21 page Semiconductor Components Industries, LLC, 2010 December, 2010 -- Rev. 7 1 Publication Order Number: NCP1230A/D NCP1230A Low--Standby Power Soft Skip Mode Controller The NCP1230A represents a major leap towards achieving low standby power in medium--to--high power Switched--Mode Power Supplies such as notebook adapters, off--line battery chargers and consumer electronics equipment. Housed in a compact 8--pin package (SO--8 or PDIP--7), the NCP1230A contains all needed control functionality to build a rugged and efficient power supply. The NCP1230A is a current mode controller with internal ramp compensation. Among the unique features offered by the NCP1230A is an event management scheme that can disable the front--end PFC circuit during standby, thus reducing the no load power consumption. The NCP1230A itself goes into soft skipping at light loads while limiting peak current (to 25% of nominal peak) so that no acoustic noise is generated. The NCP1230A has a high--voltage startup circuit that eliminates external components and reduces power consumption. The NCP1230A also features an internal latching function that can be used for OVP protection. This latch is triggered by pulling the CS pin above 3.0 V and can only be reset by pulling VCC to ground. True overload protection, internal 2.5 ms soft--start, internal leading edge blanking, internal frequency dithering for low EMI are some of the other important features offered by the NCP1230A. Features Current--Mode Operation with Internal Ramp Compensation Internal High--Voltage Startup Current Source for Loss Less Startup Extremely Low No--Load Standby Power Soft Skip Mode at Low Peak Currents (Skip--Cycle) Direct Connection to PFC Controller for Improved No--Load Standby Power Internal 2.5 ms Soft--Start Internal Leading Edge Blanking Short--Circuit Protection Independent of Auxiliary Level Internal Frequency Dithering for Improved EMI Signature +500 mA/--800 mA Peak Current Drive Capability Available in Three Frequency Options: 65 kHz, 100 kHz, and 133 kHz Direct Optocoupler Connection SPICE Models Available for TRANsient and AC Analysis Pb--Free Packages are Available Typical Applications High Power AC--DC Adapters for Notebooks, etc. Offline Battery Chargers Set--Top Boxes Power Supplies, TV, Monitors, etc. http://onsemi.com SO--8 VHVIC D SUFFIX CASE 751 PDIP--7 VHVIC P SUFFIX CASE 626B PIN CONNECTIONS DRV GND 18 VCC CS FB HV PFC Vcc MARKING DIAGRAMS xx = Device Code: 65, 100, 133 yy = Device Code: 65, 100, 133 A = Assembly Location W, WW = Work Week L = Wafer Lot Y, YY = Year G = Pb--Free Package G = Pb--Free Package 230Ay ALYWy G 1 1 8 8 1230Axx AWL YYWWG 1 http://onsemi.com Seedetailedorderingandshippinginformationinthepackage dimensions section on page 4 of this data sheet. ORDERING INFORMATION 1 8 |
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