Transcription of Primary-Side Push-Pull Oscillator with Dead-Time Control ...
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Primary-Side Push-Pull Oscillator with Dead-Time Control ...
UCC28089 SLUS623A -- SEPTEMBER 2004 -- REVISED AUGUST 2006 Primary-Side Push-Pull OSCILLATORWITH Dead-Time Oscillator with ProgrammableDeadtimeDHigh-Current Totem-Pole Dual Output StageDrives Push-Pull Configuration with 1-A Sinkand Source CapabilityDCan be Used in Push-Pull , Half-Bridge, orFull-Bridge TopologiesDOscillator Synchronization OutputDLow Start-Up Current of 130 Run CurrentDOver-Current ShutdownDDigitally Controlled Over-Current/RetryFeatureDUndervoltage Lockout with HysteresisAPPLICATIONSDHigh Efficiency Cascaded ConvertersDInvertersDElectronic BallastsDUninterruptable Power Supplies (UPS)DAC or DC LinksDESCRIPTIONThe UCC28089 is a versatile BiCMOS controller fordc-to-dc or off-line fixed-frequency switching powersupplies. The UCC28089 has dual alternating outputstages in dual-alternating Push-Pull configuration. Bothoutputs switch at half the Oscillator frequency using atoggleflip-flopanddutycycleislimitedtol essthan50%.TYPICAL APPLICATION21437856 UCC28089 SYNCDISCTCSVDDOUTAOUTBGND+--2418 UCC2540 REFSYNCING1151614 VDDPGNDG2--BIASUDG-04112 RARBCTVIN=48 VVO= +Please be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexas Instrumentssemiconductor products and disclaimers thereto appears at the end of this data DATA information is current as of publication conform to specifications per the terms of Texas Instrumentsstandar
UCC28089 SLUS623A -- SEPTEMBER 2004 -- REVISED AUGUST 2006 PRIMARY-SIDE PUSH-PULL OSCILLATOR WITH DEAD-TIME CONTROL www.ti.com 1 FEATURES D Push-Pull Oscillator With Programmable Deadtime D High-Current Totem-Pole Dual Output Stage Drives Push-Pull …
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