integrated circuit

Hi everyone, I come accross to learn to design in submicron wiht cadence virtuoso with the process technology (12nm<L<180nm). as I am a guy who likes to do hand calculation and estimate before simulation, I got struck how the square law model does not provide any resulte that make sense with the...

Hi everyone. Im looking to repair a curcuit i have. It will no longer work if the device gets cold. If it is heated up, it will start to work again. Very strange. I want to replace an IC on the PCB of the device. I need a replacement , but can not find out what would be an equivalent for the...

Please what IC is this and which is an altenative for it or what's it name and where can I find. I've looked all over for this chip but couldn't find it. It's a component from my Huawei Router around the Power connector that was having shorts

Normally working with 3 output LED, when press button in first time LED1 on LED2 and LED3 off ,then released button in first time LED1 still on LED2 and LED3 still off. When press button in secend time LED1 off LED2 on LED3 off ,then released button in secend time LED1 still off LED2 still on...

Hi all, I have this IC which creates a linear voltage ramp proportional to the input voltage based on the capacitor on the output in parallel to ground. I then have to do some analog computation using op amps. When I connect the output of this IC to an op-amp, the ramp is ruined. Is there any...

Hello, guys! Recently, I've been facing issue on dimming LED drivers from Diodes Incorporated. As example, the LED drivers I'm in trouble with is: AL8843SP. On datasheet, the manufacturer says CTRL pin must be drive with: open drain output or push pull output stage. I build those circuits, but...

Hello guys, so i have an electric sit stand desk and it stopped working a while ago, i opened up the control box model TC15L from TI motion, and saw the IC in the pictures was fried so much so that it was impossible to read the part number off of the IC. Upon touching this IC, it blew away like...

Hi all, I really hope you guys can help resolve this mystery. Thanks in advance for your consideration. Recently, my microwave/oven combination (Etna CM751ZT/E01) stopped working. As the display wouldn't even turn on, I opened it up to check for any faulty fuses or thermal cutoffs. I did...

Hello everyone, I de-soldered a 24-pin IC from an old Uninterrupted Power Supply's board. However, I haven't been able to find a datasheet or even information about the manufacturer on the almighty internet so far. Here's what I've been able to find out from looking at it closely: What I...

Hey everyone, I'm working on making a custom headlamp for myself and want to have dimming functionality without using a microcontroller. I came across the IC FM2819 (data sheet attached) which has the characteristics I'm looking for, but it isn't available for purchase on DigiKey, Mouser, or the...

Hi, I’m building a test bench for some aircraft instruments and I was testing a Bendix 1964771-3 inverter(24 VDC) brought from eBay. The inverter should have outputs of 129VAC @ 370Hz @ 12VAC/18VAC @ 1110 Hz. The inverter was marked as untested but removed working from an aircraft I was told...

Here is my Hardware Interlock Circuit for Gate Signals which prevents both PWM Signals to be at same state at any given time. Here I want to reduce this two AND Gate IC's into a Single AND Gate IC. Or Is there any other way to implement the Hardware Interlock for Gate Signals ? Is there any...

What are the ways to test a switching IC TOP266EG with a multimeter? I want to check it if it is damaged or not. Link to the datasheet: https://www.alldatasheet.com/datasheet-pdf/pdf/663154/POWERINT/TOP266EG.html Here is the DATASHEET picture: Here is the appearence of IC:

Hi, I want to simulate the product in the link in a spice program, but there is no spice file provided by the manufacturer. How can I simulate the functions of this product in a program like LTspice? - Product : https://www.nxp.com/part/MCZ33810EK#/ - Datasheet ...

Thanks before hand, Please identify the make and type of IC. This is from a backplane board. regards venkat

I'm trying to understand how to drive the MOSFET's in the two-switch forward, I designed a 200W DC-DC converter, 50V input 100V output but I was looking for using an MCU and IC in this case I have an IR2110 high side low side for the gate drive, I don't know if it is possible to use it? and if...

Hi readers, Hairdryers (240V AC) actually works on a design which current passes through the heating filament (Maybe consume 220V) to produce a lot of heat whereas through the DC motor (Maybe consume 20V). I have always been curious about this Question: Hair dryer has an option of choosing the...

Hello all, This is my first post so forgive me if I break any rules, I am trying to create a variable voltage power supply using an lm317 but am running into problems. For starters, it doesn't seem that I have a vref voltage, when probed I get 0 volts across input and adjust. My second problem...

Hi all, I have a Solar LED Light that is not working, and I want to use this to get back into electronics a little. I'm a Control Systems designer, but this level of electrical work still creates a lot of confusion for me. So I am hoping to use this as a learning project. The board is a...

Hello, I need some help connecting an 8 pin current mode PWM controller to my boost converter circuit. Specifically this one. I have used controller IC's with integrated switches to make boost converters before, however, the amount of power I need to run through the circuit requires an external...