Transcription of UC3844, UC3845, UC2844, High Performance Current Mode ...
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UC3844, UC3845, UC2844, High Performance Current Mode ...
Semiconductor Components Industries, LLC, 2006 July, 2006 Rev. 71 Publication Order Number:UC3844/DUC3844, UC3845, UC2844, UC2845 high PerformanceCurrent Mode ControllersThe UC3844, UC3845 series are high Performance fixed frequencycurrent mode controllers. They are specifically designed for Off Lineand DC to DC converter applications offering the designer a costeffective solution with minimal external components. These integratedcircuits feature an oscillator, a temperature compensated reference, highgain error amplifier, Current sensing comparator, and a high currenttotem pole output ideally suited for driving a power included are protective features consisting of input andreference undervoltage lockouts each with hysteresis, cycle by cyclecurrent limiting, a latch for single pulse metering, and a flip flop whichblanks the output off every other oscillator cycle, allowing output deadtimes to be programmed for 50% to 70%.
UC3844, UC3845, UC2844, High Performance Current Mode ... ... d
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