Questions tagged [integrated-circuit]
An integrated circuit (IC) is an electronic circuit built onto a single plate of a semiconductor material, normally silicon. Modern ICs may contain billions of transistors and they have played a major part in the miniaturization and performance improvements of modern electronic systems.
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what is the function of integrated Circuit 58723 25106?
I was going through the yu4711 cell phone board, i came across a ic numbered 58723 25106, looked up in google, couldn't find anything on it.
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Help with selecting charging IC for LiPo battery charge management
I have a project for which I have a 1 cell LiPo battery, and of course I need a BMS to monitor it and charge it/ensure it doesn't get discharged too far. I also want LED indicators to inform of the ...
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Identification of ABLIC (Seiko Instruments) brand components
Lately I've been looking for components of the brand ABLIC (Seiko Instruments).
On the following examples, i was only able to identify the brand.
However I cannot find a methodology to find the ...
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How to make one time changing state pulse?
I'm undergraduate learning the analog circuit design. I want to make a signal that changes its state only one time
when the input pulse signal changes its state at first.
I'm trying to use D-flip flop,...
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What the correct way to find the transient equation of the latch circuit given below [duplicate]
So i have question i have found the transfer function for the of the given latch circuit, now i want to find the transient equation of the given transfer function, now i think the way i did this is ...
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Is this IC a BJT?
I have a unknown 3 terminal IC in a SOT23 style package. I think it may be a BJT but I am a bit puzzled by the results of probing a DMM across all the terminals in diode mode. Below is a figure of the ...
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Electronic component identification
I bought electronic components but I have doubts. Part Number TC1015-1.8VCT713 with A59S marking and TK71638SIL with L3B marking.
It's good?
Thanks
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Identification of IC [Top Marking S48 W92]
Along with SMD Codebook, I tried to find this part online, but in vain.
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Identifying this IC marked 'IAANJ'
Can anyone help me identify this IC?
It's inside a Camranger 2 next to a USB and ethernet port. It's overheating.
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Bouncing ground and voltage spikes (power supply and grounding issues)
I am having an issue with voltage spikes and bouncing ground in my circuit.
Circuit is powered with 12V DC power supply. I am have two DC-DC converters:
4V output (power module based on TPS54331) 3A ...
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AC to DC converter from ICL7106 datasheet [closed]
Can somebody explain me how does this circuit work? I have seen this in datasheet of ICL7106.
Image Source: Renesas (Intersil) ICL7106 datasheet
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Synthesis tool support for system verilog nested interfaces [closed]
Does any one know an EDA synthesis tool for SystemVerilog nested interfaces?
A nested interface is an interface inside another interface.
I am targetting both FPGA and IC synthesizers.
Thank you for ...
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What kind of package is this? Expected a tsop flash but I don't know
I'm a beginner in the electronics world. I opened this Chinese bootleg Sega genesis cartridge and in the place I expected to find a tsop flash chip I found this kind of adapter board with a package ...
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Understanding FM Broadcast Receiver with RDA5807FP
I've been trying to build an FM broadcast receiver for the last few weeks know, with simple designs like with LC circuits, but I've realized that an IC based radio outperforms simple transistor radios....
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How to convert RS-422 paired-signals to one CMOS signal
I am able to find several commercial ICs for converting CMOS or TTL input levels translate to RS-422 output levels. (I.e One 5V single input to two differential output). However, I couldn’t find how ...
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Smallest current-controlled voltage source in an IC?
You can multiply a vector and a matrix by encoding the vector in voltages and the matrix values as conductances of variable resistors (using eg floating gate transistors or phase change memory). The ...
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Li-Ion BMS Feature Overlap: Charger, Cell Balance + Monitor, Protection, Fuel Gauge [closed]
Background
TI has a suite of battery management ICs for:
Charger
Cell Balance + Monitor
Protection
Fuel Gauge
While the chargers tended to be their own thing, many of the ICs had feature overlap:
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Voltage gain of this OPA circuit with AC input
The aim is to attenuate 10 times and cutoff frequency of at least 10 MHz.
I understood that the green section of the circuit reduces the voltage gain. I have noticed that increasing the orange section'...
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Thermal relief for a chip without metal plate on the bottom
I have a chip in which I have selected this footprint: Package_SO: SOIC-8_3.9X4.9mm_P1.27mm.
This is what it looks like:
Because this chip gets pretty hot, I ...
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Ripple rejection of 7805 voltage regulator
In the last row of the picture of the data sheet of 7805 voltage regulator, the ripple reduction ranges from 62 to 78 dB for the voltage range of 8 to 18 volts at 120 Hz.
Is it the range of input ...
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Who is the manufacturer of the LM2576 IC?
Who is the original & the current manufacturer of the LM2576 IC:
Microchip Datasheet
Onsemi Datasheet
How come there are two manufacturers for the same part? Some of the graphs are different, ...
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General formula for the ripple voltage in a loaded bridge rectifier
What is the general formula to calculate the peak to peak ripple voltage and Vdc average of the voltage at the input of the 7805 voltage regulator in a circuit like this?
Suppose the load is a fixed ...
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Input capacitors to the 7805 voltage regulator [duplicate]
What is the purpose of the 1000 µF and 0.22 µF capacitors at the input of 7805 voltage regulator?
Input to these capacitors is the rectified pulsating DC voltage. What will be the shape of this ...
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Are NOR FLASH NVM ICs generic and largely interchangeable?
I need a NOR FLASH ROM chip that's SOIC-8 and 16MiB in size, and it's purpose is to contain boot firmware. There are so many that I'm afraid of installing the wrong one to find out it's not suitable ...
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Enable voltage doesn't change on LTC2950 pushbutton on/off chip
I'm troubleshooting a problem with an LTC2950 chip, specifically this version from Digikey. The LTC's enable pin is connected to the enable pins on anLMR15430 regulator configured to provide a 5V ...
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Is there an alternative number for this IC? [duplicate]
This circuit belongs to a car music system.
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Identifying SMD component on Philips TV 65OLED804/12 remote control
I need to know what kind of SMD this is. The text on it says: VUAI, and the device is the Philips remote control YKF463-001.
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Can FT232HL VCCIO be powered from external source?
I would like to power the FT232HL from VBUS, but prevent it from supplying power through (UART) IOs to connected microcontroller. Microcontroller is powered from an external +3V3 source, which might ...
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Is the RF/DC power on/off sequence for my simple radio beacon design good enough?
I'm using a RFPA5542 PA module. Does the power on/off sequence have to be followed exactly? Do I risk damage to the IC? I am delaying PA_EN by 2ms by an RC circuit of R13 and C5 and that is all. The ...
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How to access Bluetooth LE features of CYW43439 on Raspberry Pi Pico W?
Raspberry Pi Pico W comes with a chip, CYW43439, that is capable to do WiFi and Bluetooth (both Classic and LE). According to Chapter 2.1 in Raspberry Pi Pico W:s datasheet, GPIO24, GPIO25 and GPIO29 ...
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Finding alternate IC for 74HC245D
I have built a PCB using IC 74HC245D for levelshifting 3.3v signal to 5v signal for RGB LEDs. But by mistake, I used TSSOP-20 footprint in my PCB, and while ordering parts I ordered a SOIC package so ...
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VESC and wireless receiver setup
Trying a DIY VESC project, but very limited knowledge of circuit boards and connections. I have dual Maytech 100a V6 VESC and wireless receiver, but I don't know how to connect them. The remote is ...
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Connection with battery charger IC IP5209
I am very new to electronics and need some help with understanding how to read a part of a schematic
I am using the IP5209 Battery Management IC, and don't understand these example schematic on a ...
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Help finding IC with marking on device '14260P TI 28A P034G4'. Package of device is SOIC-8
IC identification
package: SOIC-8
top marking: 14260P TI 28A P034G4
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Identify Richtek chip
I am repairing a HP Elitebook 745 and found that the 3.3V and 5V rails are not working.
My idea was to replace the buck converter ICs, but I can't figure out what the part numbers are. The ICs have ...
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51 V clamp on load dump; will this IC survive?
This is about the Texas Instruments TPS2HB50-Q1 40-V, 50-mΩ Dual-Channel Smart High-Side Switch.
Vbb is the battery (suppy) voltage
Page 7 gives a VbbCLAMP > 58V
...
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Dual supply circuit
I am designing a circuit with 2 48V power supplies to feed a load. My goal is to give priority to Supply 1 when available since I need the load to be fed by only one supply at a time. This is what I'...
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Where to apply input source to common gate configuration
I have learned from my teacher that the input of the common gate is applied at the source pin and the output voltage is probed from the drain pin, why not vice versa? Can I do that?
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Identify chip from picture from STM
I have tried to google the different type of code and I cant really confirm that what I suspect I found is actually the right thing so I might want to see if something can confirm my finidng.
I ...
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UC3842 IC not working
I have a simple UC3842 IC and I want to test that. First I used the open loop circuit from the datasheet but it didn't work therefore I went through the datasheet again and found from the schematic ...
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Looking for help identifying IGBT [closed]
This was in my DC stick welder. There are two but they're both blown up.
This one has some readable letters on it still. I can find many similar ones but none match the bottom number. Any help is ...
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UC3842 using current sense and Feedback
I am having a few confusions regarding the PWM IC UC3842:
I am not able to understand why we have two sensing pins on the PWM IC. The current sense pin uses the current to set up the PWM while the ...
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LM2576 TI Simulation not working
I have used the PSPICE model of LM2576 IC from the Texas instruments but the simulation is giving me false results. I have used the exact same diagram from the datasheet but the IC is not working. I ...
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Resistor divider for power supply
I have a UM66 melody generator IC which requires a supply voltage in the range of 1.5-4.5 V according to this datasheet. I am using a 9 V battery to power the IC and as far as I have researched, ...
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Is there an IC equivalent of a 3PDT switch?
I have two 3 wire RTD temperature sensors being used to measure the temperature of two different liquids. I only have one digital gauge to read the output on. I would like to switch between the two ...
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Cross talk within IC package
I have learnt that on the PCB, the signal tracks must be a certain distance apart to minimize cross talk. This makes sense this we must reduce the electric and magnetic field coupling across to ...
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Are there crosses or alternatives for the IP5311CX5_LF LCD display chip for Nokia 6120c Classic (year 2008 model)?
I was looking for the LCD display chip for my Nokia 6120c Classic (model year 2008).
The name of this chip as shown in this schematic diagram of Nokia 6120c Classic (model year 2008) is IP5311CX5_LF ...
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How can I identify this microwave circuit?
I found this microwave circuit from e-bay but cannot identify what this circuit is doing. I am asking this question since I found the same circuit from the sampling scope that I was tearing down in ...
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