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
Part Manufacturer Description Datasheet Samples
UC1846J Texas Instruments Current-Mode PWM Controller 16-CDIP -55 to 125
UC1846J/80619 Texas Instruments Current-Mode PWM Controller 16-CDIP -55 to 125
UC1846J883B Texas Instruments Current-Mode PWM Controller 16-CDIP -55 to 125
UC1846J/80364 Texas Instruments Current-Mode PWM Controller 16-CDIP -55 to 125
UC1846J/80257 Texas Instruments Current-Mode PWM Controller 16-CDIP -55 to 125
UC1846LQMLV Texas Instruments 0.5A SWITCHING CONTROLLER, 500kHz SWITCHING FREQ-MAX, CQCC20, LCC-20
UC1846L883B Texas Instruments Current-Mode PWM Controller 20-LCCC -55 to 125
UC1846MDWREP Texas Instruments Enhanced Product Current-Mode Pwm Controller 16-SOIC -55 to 125
UC1846VTD2 Texas Instruments Current-Mode PWM Controller 0- 0 to 0
UC1846VTD1 Texas Instruments Current-Mode PWM Controller 0- 0 to 0
UC1846 's PackagesUC1846 's pdf datasheet



UC1846 Pinout, Pinouts
UC1846 pinout,Pin out
This is one package pinout of UC1846,If you need more pinouts please download UC1846's pdf datasheet.

UC1846 Application circuits
UC1846 circuits
This is one application circuit of UC1846,If you need more circuits,please download UC1846's pdf datasheet.


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