Uc3843 Datasheet

October 11, 2024 Post a Comment

Uc3843 datasheet

The UC3843 can be used to regulate or limit current in application like SMPS, RPS, DC-DC Converters, Line voltage regulators, etc. So if you are looking for an IC to produce PWM signals for controlling a power switch based on the current flowing through the circuit then this IC might be the right choice for you.

What is the difference between UC3842 and UC3843?

The UC3842 and UC3844 have UVLO thresholds of 16V (on) and 10V (off). The UC3843 and UC3845 are 8.5V(on) and 7.9V (off). The UC3842 and UC3843 can operate within 100% duty cycle. The UC3844 and UC3845 can operate with 50% duty cycle.

What is UC3843 IC?

The UC3843 IC is a current Mode PWM Controller, meaning it can be used to provide a constant current by varying the output voltage to the load.

Which IC is used for SMPS?

SMPS PRIMARY I.C. VIPer100A-E/ASP-E, made using VIPower M0 Technology, combines on the same silicon chip a state-of-the-art PWM circuit together with an optimized, high voltage, Vertical Power MOSFET (700V/ 3A).

What is SMPS circuit?

SMPS is an electronic power supply system that makes use of a switching regulator to transfer electrical power effectively. It is a PSU (power supply unit) and is usually used in computers to change the voltage to the appropriate range for the computer.

What is buck converter and its working?

A buck converter (step-down converter) is a DC-to-DC power converter which steps down voltage (while stepping up current) from its input (supply) to its output (load).

What is LM358 IC used for?

LM358 can be used as transducer amplifier, DC gain block etc. It has large dc voltage gain of 100dB. This IC can be operated on wide range of power supply from 3V to 32V for single power supply or from ±1.5V to ±16V for dual power supply and it also support large output voltage swing.

How does a PWM motor work?

As its name suggests, pulse width modulation speed control works by driving the motor with a series of “ON-OFF” pulses and varying the duty cycle, the fraction of time that the output voltage is “ON” compared to when it is “OFF”, of the pulses while keeping the frequency constant.

What is SMPS controller?

A switched-mode power supply (switching-mode power supply, switch-mode power supply, switched power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.

What are the two types of SMPS?

SMPS can be classified into two types based on circuit topology: non-isolated converters and isolated converters.

Can SMPS run on DC?

SMPS made for AC input can run from a DC supply, as the DC will pass through the rectifier unchanged.

Which fuse is used in SMPS?

For most SMPS products, the answer is a wide variety of international standards, which leads to a fuse that complies with IEC-60127.

What are the 3 types of power supply?

Linear, Switched, or Battery-based? There are three subsets of regulated power supplies: linear, switched, and battery-based. Of the three basic regulated power supply designs, linear is the least complicated system, but switched and battery power have their advantages.

What is output voltage of SMPS?

Most switched-mode power supplies (SMPS) for desktop PCs are AC to DC type. That means, SMPS takes AC mains input and outputs DC (3.3V to 12V).

What is inside SMPS?

What is inside a SMPS? The AC input from mains is first rectified in the SMPS using a rectifier to convert it into DC. The rectifier consisting of a full wave diode bridge or module that produces an unregulated DC voltage to the Smoothing capacitor.

What is the formula of buck converter?

In CCM, these two equations are equal, so we can write the following: D*T*(Vout-Vin)/L=(D-1)*T*Vout/L and the Ts and the Ls cancel, leaving us with: D*(Vout-Vin) = (D-1)*Vout, which simplifies to: Vout = Vin. * D. This equation, Vout = Vin * D is probably the single most important equation for a buck converter.

Why is it called a buck converter?

The buck converter is so named because the inductor always “bucks” or acts against the input voltage. The output voltage of an ideal buck converter is equal to the product of the switching duty cycle and the supply voltage.

Why do we use buck converter?

A buck converter is used to step down voltage of the given input in order to achieve required output. Buck converters are mostly used for USB on the go, point of load converters for PCs and laptops, Battery Chargers, Quad Copters, Solar Chargers, and power audio amplifiers.

Why LM358 is used in IR sensor?

Here operational amplifier (op-amp) of LM 358 is used as a comparator. When the IR receiver does not receive the signal the potential at the inverting input goes higher than that at the non-inverting input of the comparator (LM 358). Thus the output of the comparator goes low and the LED does not glow.

Is LM358 a microcontroller?

All these components are integrated onto a single chip. They are available in various forms like 555 timers, single circuit logic gates, microprocessors, microcontrollers, voltage regulators and op-amps like IC 741, LM324 IC, LM358 IC, LM339 IC and many more.