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CS51023A

ON Semiconductor
Part Number CS51023A
Manufacturer ON Semiconductor
Description PWM Controller
Published Sep 9, 2023
Detailed Description Enhanced Current Mode PWM Controller CS51021A The CS51021A Fixed Frequency PWM Current Mode Controller provides all nece...
Datasheet PDF File CS51023A PDF File

CS51023A
CS51023A


Overview
Enhanced Current Mode PWM Controller CS51021A The CS51021A Fixed Frequency PWM Current Mode Controller provides all necessary features required for AC−DC or DC−DC primary side control.
Several features are included eliminating the additional components needed to implement them externally.
In addition to low startup current (75 mA) and high frequency operation capability, the CS51021A includes overvoltage and undervoltage monitoring, externally programmable dual threshold overcurrent protection, current sense leading edge blanking, current slope compensation, accurate duty cycle control and an externally available 5.
0 V reference.
The CS51021A features bidirectional synchronization capability.
The CS51021A is available in a 16 lead narrow body SOIC package.
Device CS51021A Sleep/Synch Synch VCC Start/Stop 8.
25 V/7.
7 V Features • 75 mA Max.
Startup Current • Fixed Frequency Current Mode Control • 1.
0 MHz Switching Frequency • Undervoltage Protection Monitor • Overvoltage Protection Monitor with Programmable Hysteresis • Programmable Dual Threshold Overcurrent Protection with Delayed Restart • Programmable Soft Start • Accurate Maximum Duty Cycle Limit • Programmable Slope Compensation • Leading Edge Current Sense Blanking • 1.
0 A Sink/Source Gate Drive • Bidirectional Synchronization • 50 ns PWM Propagation Delay • These Devices are Pb−Free and are RoHS Compliant DATA SHEET www.
onsemi.
com 16 1 SOIC−16 D SUFFIX CASE 751B−05 PIN CONNECTIONS AND MARKING DIAGRAM 1 GATE ISENSE SLEEP or SYNC SLOPE UV OV RTCT ISET CS5102xAG AWLYWW 16 VC PGND VCC VREF LGND SS COMP VFB x = Specific Device Code A = Assembly Location WL = Wafer Lot Y = Year WW = Work Week G = Pb−Free Package ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2006 1 May, 2023 − Rev.
9 Publication Order Number: CS51021A/D CS51021A VIN (36 V to 72 V) PGND 51 k BA...



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