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NCP1294ED16 Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP1294ED16 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 13 page © Semiconductor Components Industries, LLC, 2009 July, 2009 − Rev. 0 1 Publication Order Number: NCP1294/D NCP1294 Flyback, Boost, Forward PWM Controller The NCP1294 fixed frequency feed forward voltage mode PWM controller contains all of the features necessary to be configured in a Flyback, Boost or Forward topology. This PWM controller has been optimized for high frequency primary side control operation. In addition, this device includes such features as: Soft−Start, accurate duty cycle limit control, less than 50 mA startup current, over and undervoltage protection, and bidirectional synchronization. The NCP1294 is available in a 16 lead SOIC narrow surface mount package. Features • 1.0 MHz Frequency Capability • Fixed Frequency Voltage Mode Operation, with Feed Forward • Thermal Shutdown • Undervoltage Lock−Out • Accurate Programmable Max Duty Cycle Limit • 1.0 A Sink/Source Gate Drive • Programmable Pulse−By−Pulse Overcurrent Protection • Leading Edge Current Sense Blanking • 75 ns Shutdown Propagation Delay • Programmable Soft−Start • Undervoltage Protection • Overvoltage Protection with Programmable Hysteresis • Bidirectional Synchronization • 25 ns GATE Rise and Fall Time (1.0 nF Load) • 3.3 V 3% Reference Voltage Output • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. VFB ISET 1 16 COMP RTCT SS OV LGND UV VREF FF VCC SYNC PGND ISENSE VC GATE PIN CONNECTIONS AND MARKING DIAGRAM 1 16 http://onsemi.com Device Package Shipping† ORDERING INFORMATION NCP1294EDR2G SOIC−16 (Pb−Free) 2500 Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. NCP1294EDBR2G TSSOP−16 (Pb−Free) SOIC−16 D SUFFIX CASE 751B 1 16 TSSOP−16 DB SUFFIX CASE 948F NCP1294= Specific Device Code A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G or G = Pb−Free Package NCP 1294 ALYW G 1 16 2500 Tape & Reel |
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