Introduction to LT3750

Hello readers welcome to new post. Today we will learn Introduction to LT3750. It device is used for charging high volts capacitors with high speed with use of less exterior elements. It is named as a current-mode flyback converter.

In this post, we will learn its pinout working features and some other paramrets. So let get started Introduction to LT3750

Table of Contents

The LT3750 is a flyback converter created for high-speed sharing of larger capacitors for required volts.

It has less value of transition losses and decreases the size of the transformer since has a patented boundary.
Turn ration of transformer and 2 exterior resistance changes the value of output volts.
The small value of current about seventy-eight millivolts detects correctly limits peak current and enhances the efficiency.
It has different values of input voltage ranges so it can work on different power supplies
It has the ability to charge the one hundred microFarad capacitor in just three hundred milliseconds for three hundred volts
its charging pinout can give complete control to the users. Its DONE pin used to indicate the charging of the capacitor

LT3750 Features

The main features are discussed here
It comes in MS packaging having ten leads
It can drive the MOSFET gate at minus two volts Vcc
It can operate at different values of input volts from three volts to twenty-four volts
It not need any output voltage divider
It can operate high current use NOMS field effect transistors
Its output volts can be regulated easily
It has the ability to charge any capacitance value of charge

LT3750 Pinout

The main pinout of LT3750 are explained here

Pin 1 Transformer Supply Pin. Powers the primary coil of the transformer as well as internal circuitry that performs boundary mode detection. Bypass at the pin with a 1µF to 10µF capacitor. Bypass the primary winding of the transformer with a large capacitor
Pin 2 is DONE used for configuring the completion of a single cycle of charging
Pin 3 its high configuration indicates the charging initiating.
Pin 4 is use to get the power supply
Pin 5 is ground
Pin 6 It is linked to the source pin of MOSFET and also has a connection to current sensing resistances
Pin 7 is used for the gate of MOSFET
Pin 8 It used for the detection of boundary mode to start new switching cycle
Pin 9 Used to transform the reflected secondary volts to current
Pin 10 transforms the current get through pin 9 in the volts that sensed by the comparator to stop the charging process

LT3750 300V, 6A Capacitor Charger

300V, 6A Capacitor Charger using the LT3750 can seen here

LT3750 BLOCK DIAGRAM

Block diagram of this component can see here

LT3750 Applications

Its common applications are discussed here
Used for detonators circuits
Used in electric fences
Used for large value of power supply
Used in different security system
Used in emergency warning Beacons
Used in photoflash system

Emergency Warning Beacons

Emergency warning beacons work as active devices for giving alerts for any threats. The LT2750 has the capacity for handling high voltage power supply positions at optimal options for beacons, providing good working in extreme conditions.
Like for natural disasters or industries, and working of beacons affects results and provides safety.

Uses of LT3750

The high voltage capacitor charger outcomes are ineffective and get longer time for charging. LT2750 supported all working of capacitor charging circuits, voltage detection, control logic and MOSFET driving on small10-pin chip.

FAQs

Is LT3750 a capacitor charger controller?

The LR3750 is a flyback converter that is used for fast charging of larger capacitors for users’ set voltage. Its boundary mode control design reduces transition losses and also controls transformer size. LT3750 operates with different power supply sources. The normal use is to charge a 100µF capacitor to 300V in less than 300ms.

What is the working of the LT3750?

The charge pin provides complete control for LT2750. The DONE pin shows when the capacitor gets the programmed value and the component comes with stopped charging.