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Archives for 2025

BQ24295 Smart Battery Charger IC with Boost + OTG

Last Updated on May 18, 2026 by Swagatam Leave a Comment

This BQ24295 IC is like a super smart charger chip. This one is not just for charging battery, but also doing many other jobs like boost converter, USB detection, power path control, and even OTG (host power supply). So we can say that this is a full battery charging and power management IC. Let us […]

Filed Under: Battery Charger Circuits, Datasheets and Components Tagged With: Battery, Boost, BQ24295, Charger, OTG, Smart

Isolated High Side Gate Driver Opto-Coupler HCPL3120: No need of Bootstrapping Capacitor/Diode

Last Updated on May 18, 2026 by Swagatam 3 Comments

In this article I will be talking about this device that we call HCPL3120 or also J312, and we see that it is an isolated gate drive opto coupler which we can use for driving H-bridge MOSFET and IGBT gates safely from the low voltage logic side to the high voltage power side. It has […]

Filed Under: Datasheets and Components Tagged With: Driver, Gate, High, Isolated, Opto, Side

IC LF155, LF156, LF256, LF257, LF355, LF356, LF357 Datasheet and Working

Last Updated on May 18, 2026 by Swagatam Leave a Comment

These ICs LF155 LF156 LF256 LF257 LF355 LF356 LF357 all belong to one big family of JFET input operational amplifiers. These are special op amps that give very high input impedance, very low input bias current and good DC accuracy. You may think why they made so many numbers, but the reason is that each […]

Filed Under: Datasheets and Components Tagged With: LF155, LF156, LF256, LF257, LF355, LF356

IC IR2111 H-Bridge MOSFET, IGBT Driver IC: Full Datasheet, Circuit Diagram

Last Updated on May 18, 2026 by Swagatam 6 Comments

In this article I will talk about this IC IR2111 which people use many times in power electronics field. We can see that this IC is made in such a way that it can handle high voltage and also it can work with very high switching speed and it is mainly meant for working like […]

Filed Under: Datasheets and Components Tagged With: Driver, High, IGBT, IR2111, MOSFET, Power

IC LM393 Complete Datasheet with Circuit Diagram

Last Updated on May 18, 2026 by Swagatam 7 Comments

Here we are going to discuss about LM393 that is a very popular dual voltage comparator IC. I will try to explain everything step by step so you can understand. We will see the ratings, the pinout, the electrical values, the formulas and also the way we can use it in real life circuits. General […]

Filed Under: Datasheets and Components Tagged With: Complete, Datasheet, LM393

Understanding CMOS IC 4035 Datasheet – 4-Bit Parallel In Parallel Out Shift Register

Last Updated on May 17, 2026 by Swagatam 2 Comments

So now we are talking about this digital IC called 4035 which is made using CMOS technology, that means it will use very low current and will give us high noise immunity. Inside this IC we have got 4 flip-flops which are arranged in such a way that they can hold and shift 4-bit data. […]

Filed Under: Datasheets and Components, Oscillator Circuits Tagged With: 4035, CMOS, Datasheet, Parallel, Shift, Understanding

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