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CS51221EDTB16G 数据表(PDF) 1 Page - ON Semiconductor |
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CS51221EDTB16G 数据表(HTML) 1 Page - ON Semiconductor |
1 / 14 page © Semiconductor Components Industries, LLC, 2005 September, 2005 − Rev. 8 1 Publication Order Number: CS51221/D CS51221 Enhanced Voltage Mode PWM Controller The CS51221 fixed frequency feed forward voltage mode PWM controller contains all of the features necessary for basic voltage mode operation. 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 CS51221 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 • Pb−Free Packages are Available* *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 CS51221ED16 SOIC−16 48 Units / Rail CS51221EDR16 SOIC−16 2500 Tape & Reel CS51221EDR16G 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. CS51221ED16G SOIC−16 (Pb−Free) 48 Units / Rail CS51221EDTB16G TSSOP−16 (Pb−Free) 96 Units / Rail CS51221EDTB16R2G TSSOP−16 (Pb−Free) SOIC−16 D SUFFIX CASE 751B 1 16 TSSOP−16 DTB SUFFIX CASE 948F CS51221= Specific Device Code A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G = Pb−Free Package 1 16 2500 Tape & Reel |
类似零件编号 - CS51221EDTB16G |
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类似说明 - CS51221EDTB16G |
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