Introduction to uc3842

Hi friends welcome to the new post. We will discuss the Introduction to uc3842. It is fix frequency mode pulse width modulation controller. Its common applications are DC to dc conversion circuits and offline circuits.

In this post, we will cover different features pinout applications and block diagrams of this component. So let’s get started Introduction to uc3842

Introduction to uc3842

• The ucx84x group of components consists of control integrated circuits that offer features that make to use in DC to dc fixed frequency current mode circuits where needed fewer components

• The inner circuit of this module consists of an undervolted lockout offering a start-up current value of less than one milliamperes.
• With that, it also has logic to make sure latched operation PWM comparators for current limiting features.
• It has a totem pole output stage which is used for sink and source of larger value peak current.
• The output circuitry is good for operating the N channel MOSFETs is low in case of off-state
• The ucx84x series gives a different packaging temperature value highest duty cycle.
• The modules that have a high value of turn on and turn off hysteresis are the finest option for off-line power supply.
• The modules UC184x are operated on the minus fifty-five to one twenty-five centigrade.

uc3842 Pinout

• It comes in three packaging of pinout 8 pin, 16, and 20 pins. Here we will discuss eight-pin packaging
• Pin 1 It is an output pinout that gives less output impedance with the signal of one megahertz on the basis of differences among the set and current volts.

• Pin 2 is used to give input to the error amplifier of the circuit. VOlts differences is given here
• Pin 3 It is shunt resistant and used to observe the current in the circuitry and volts about it provided through feedback circuitry.
• Pin 4 It has an inner oscillator that can adjust through the use of external resistance and a capacitor linked
• Pin 5 is ground
• Pin 6 is the output
• Pin 7 is input supply
• The pin is a reference volts

uc3842 Features

• Its main features are explained here
• It has a high current Totem pole output
• Can assemble for DC to DC converter and offline
• Its input current is twenty-five milliamperes
• Its duty cycle is one hundred percent
• Its switching frequency is five kilohertz
• Its switching frequency is five kilohertz
• Operating volts are twelve volts to twenty-eight volts

uc3842 Operating Conditions

• Its operating conditions are explained here

uc3842 Absolute Maximum Ratings

 

uc3842 Applications

• Its main application is explained here
• It used as a load in machines
• Used in the battery circuit
• Used in power supply
• Used DC to DC converters
• Used in switch mode power supply

uc3842 Block Diagram

That is all about the uc3842 all details has explained if you have any further queries ask in the comments.