UC3842B - High Performance Current Mode Controllers

Semiconductor Components Industries, LLC, 2013 September, 2013 Rev. 171 publication Order Number: UC3842B /DUC3842B, UC3843B,UC2842B, UC2843 BHigh PerformanceCurrent Mode ControllersThe UC3842B , UC3843B series are high Performance fixedfrequency Current mode Controllers . They are specifically designed forOff Line and DC DC converter applications offering the designer acost effective solution with minimal external components. Theseintegrated circuits feature a trimmed oscillator for precise duty cyclecontrol, a temperature compensated reference, high gain erroramplifier, Current sensing comparator, and a high Current totem poleoutput ideally suited for driving a power included are protective features consisting of input andreference undervoltage lockouts each with hysteresis, cycle by cyclecurrent limiting, programmable output deadtime, and a latch for singlepulse devices are available in an 8 pin dual in line and surfacemount (SOIC 8) plastic package as well as the 14 pin plastic surfacemount (SOIC 14).

1 Publication Order Number: UC3842B/D UC3842B, UC3843B, UC2842B, UC2843B High Performance ... Machine Model Method 200 V per JEDEC Standard JESD22-A115-A 2. This device contains latch-up protection and exceeds 100 mA per JEDEC Standard JESD78 ... (IO = 1.0 mA, TJ = 25°C) Vref 4.95 5.0 5.05 4.9 5.0 5.1 V Line Regulation (VCC = 12 V to 25 V ...

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