Current Mode PWM Controller

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.
Protection circuitry includes built-in under-voltage lockout and programmable current limit in addition to soft start capability. A shut-down function is also available which CAN initiate either a complete shutdown with Automatic restart or latch the supply off.
Other features include fully latched operation, double pulse suppression, deadline adjust capability, and a 1% trimmed bandgap reference.
The UC1846 features low outputs in the OFF state, while the UC1847 features high outputs in the OFF state.
By Texas Instruments
UC3846M 's PackagesUC3846M 's pdf datasheet

UC3846M Pinout, Pinouts
UC3846M pinout,Pin out
This is one package pinout of UC3846M,If you need more pinouts please download UC3846M's pdf datasheet.

UC3846M Application circuits
UC3846M circuits
This is one application circuit of UC3846M,If you need more circuits,please download UC3846M's pdf datasheet.

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