UC1847L883B

The UC1846/7 family of control ICs provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count.The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop.Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters,and the ability to parallel "power modules" while maintaining equal current sharing.The UC1847L883B belongs to UC1846/7 family.

The absolute maximum ratings of the UC1847L883B can be summarized as:(1):the supply voltage is +40V;(2):the collector supply voltage is +40V;(3):the output current,source or sink is 500mA;(4):the analog inputs is -0.3V to +VIN;(5):the reference output current is -30mA;(6):the sync output current is -5mA;(7):the error amplifier output current is -5mA;(8):the soft start sink current is 50mA;(9):the oscillator charging current is 5mA;(10):the power dissipation at TA=25 is 1000mW;(11):the power dissipation at TC=25 is 2000mW;(12):the storage temperature range is -65 to +150;(13):the lead temperature (soldering,10 seconds) is +300.