Questions tagged [datasheet]
Datasheets are the primary documentation about components, describing their functionality and electrical properties.
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Is rated current supposed to vary based on voltage?
Recently I have been reading a lot of datasheets and noticed that many manufacturers specify a current rating for their products (especially connectors) without specifying at what voltage the current ...
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0answers
36 views
How to understand the battery algorithms in the data sheets given?for battery capacity measurement [on hold]
I am trying to understand the battery algorithm given in data sheet for capacity measurement but it is not clear. the have read about algorithms like
1.Impedance track/matching for battery profiling ...
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1answer
32 views
What does it mean if input impedance given as a current regulator?
This SSR relay has an input impedance given in its datasheet as:
It says "Nominal Input Impedance is a current regulator". At 5V 16mA.
But how can I model this type of input impedance? I will use ...
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1answer
40 views
Datasheet Notation for Filter Parameters
I've been reading through the LTC1264-High Speed Quad Universal Filter Building Block datasheet but I'm having some trouble deciphering the meaning of some of the variables used in the equations for ...
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49 views
Looking for data sheet of the following Modbus Sensors #updated
I'm a noob in this area, please ignore any stupidity and lack of info and any help is appreciated and I'm ready to provide all clarification on the post if by chance any info is missing.
So i have ...
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1answer
66 views
Replace bad voltage regulator with another one that have lower output current
I need to replace a shorted TL750L05 +5V voltage regulator with a new one. The problem is I can not easily find a replacement part that has the same features. I found the LM2931M-5.0 but is rated at ...
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2answers
170 views
Difference between [W] and [WS] power rating of resistors
I see some datasheets of power resistors where power ratings are in Watts [W] and some in [WS] which I don't know what they mean.
What is the difference between them?
Example of datasheet
Some ...
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3answers
163 views
How can I determine whether this is a “rail to rail” opamp from its datasheet?
I know that rail to rail means that the opamp output can have a swing upto its power rail voltages.
So for a rail to rail opamp lets say if the supply test condition is +-12V, I would assume that the ...
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1answer
678 views
What do these arrows on a pinout represent?
What do these arrows represent?
Is there any way to memorize it easily?
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2answers
37 views
How to generate board plot/image in Eagle
I designed my own PCB in Eagle so I have both the schematics and the board files.
I would like to generate a figure like this one made for Arduino board in order to include it in the user manual that ...
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1answer
50 views
Pseudobipolar signal example - Analog Devices AD7682
What is a pseudobipolar signal? I read this word in the datasheet below:
http://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf
Can you show me an example with a plot ...
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1answer
44 views
What is such parameter called for a frequency to voltage converter
In a frequency to analog voltage converter what is the parameter which is related to the response of the conversion.
So for example I use this converter module and Im wondering how fast the change in ...
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1answer
29 views
FPC cable contacts. Bottom vs Top and Bottom
I would like to design custom FPC cables as extensions of my flex pcb that will connect to this connector of another PCB.
My question is about the Connector/Contact type. In the digikey page it ...
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2answers
85 views
What properties should I look for in a microcontroller if I just want to work with incoming 16 bit data?
I am very new to picking microcontrollers for projects. I have a project in which I have 16-bit data coming in from an amplifier/ADC. Simply put, I would like the microcontroller (very low power and ...
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0answers
26 views
How can I access process node data sheets?
I am searching for process node data sheets. Specifically, I'm interested in TSMC's 16nm, 12nm, 10nm, 7nm nodes, as well as Samsung's 14nm, 10nm nodes. I did not find anything with Google.
How can I ...
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1answer
24 views
replacing obsolete HEMT and differences between Package/Case and Supplier Device Package
I've been designing an amplifier, with ATF33143 as my HEMT in mind. Yet, I just found out the said HEMT went obsolete. So I started looking at SKY65050-372LF as a possible replacement.
On the DigiKey ...
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2answers
116 views
What is the size of this microcontroller? Having trouble reading a data sheet
I am trying to find a small enough microcontroller for a project, but I am not familiar with the notation used to denote the sizes in this image:
What does that mean when it says 12,20/11,80 SQ and 7,...
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2answers
31 views
Ic-Vge IGBT Curve
In the figure below, presented in the manufacturer datasheet, you can see the Ic-Vge curve of an IGBT device. As mentioned, it has been drawn at Vce=20V. What does this equality mean? Can we have such ...
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2answers
504 views
Schematic indicator interpretation
I was attempting to get familiar with the Texas Instruments CDCE62002.
While checking the datasheet of the evaluation module, I came across the following indicator in the schematic. I'm curious about ...
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1answer
44 views
Bandwidth (Data rate) of a laser beam when no datasheet exists for the module
I ordered a large number of laser modules that look like the following:
When inspecting mine with a basic multimeter, I noticed a 90 ohm smd resistor is fitted on the module. I see no other ...
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1answer
46 views
How to find RS485 UART pins are inverted in the data sheet?
I want to know, how we identify the RS485 pins are inverted. I am using at91 microcontroller?
This sam9260 board has four rs485 in which two of them are inverted. ...
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0answers
20 views
Difference between RGB TN and RGB IPS display?
While I know the pros and cons of each type of screen and how IPS is superior to TN screens in viewing angles and color reproduction I'm trying to understand how these two screens operate differently.
...
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0answers
36 views
RFID Key Fob Reader SIEMENS From Car 12 Volt to USB
I'am trying to transform an Rfid reader from Car to usb.
From the wiring Page 77 on Renault-Megane-II-Service-Manual I can identify the power wire 2 and ground wire 4 and I know the reader receive a ...
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1answer
39 views
Checking my understanding of this datasheet of a TFT LCD display?
I'm trying to modify an HDMI decoder board by Adafruit(https://learn.adafruit.com/adafruit-tfp401-hdmi-slash-dvi-decoder-to-40-pin-ttl-display/downloads) to work with an IPS screen that has a 51 pin ...
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1answer
39 views
What load can i connect if data sheet is missing output voltage
I am looking at a DC to DC converter data sheet that has an input voltage of 0V-100V. The datasheet only mentions a max output current of 4 amps. Is it safe to assume I can place a load of any voltage ...
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2answers
822 views
What is this array-like notation of registers in datasheets?
I am reading BMP280 datasheet (pressure&temperature sensor). On different pages they use the following notation:
$$register\text{_}name[a:b]$$ where a, b are integers. For example, on page 13 "...
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3answers
344 views
ESD ratings of diodes and bipolar transistors
While it's easy to find ESD ratings for ICs (bipolar, CMOS, and any mix) and to some extent for MOS transistors (for the inherent reasons), I don't find ESD rating for many common diodes (left apart ...
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1answer
38 views
Power Barrel Connector Voltage Rating Inquiry
My system is using 48V at 3A max. I am currently looking for a power connector to my PCB that can handle my specifications. I came across a potential connector, but I noticed on the data sheet it is ...
2
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5answers
212 views
What's the difference between typical and maximum forward voltage for an LED?
The datasheet for some LEDs I'm considering lists the forward voltages as 2.7V typical and 4.2V max. (I'm looking at the "warm white" version.)
In the past, I've only ever looked at the typical ...
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1answer
43 views
PIC18f46K40 Datasheet/MCC discrepancy
I have found a problem with the PIC18f46K40 datasheet or a problem in MCC - I am using the 44-pin TQFP package.
In the datasheet, the pin layout for the PIC18f46K40 is given below:
The MCC (MPLABX ...
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1answer
23 views
How to find the actual measurement range of a temperature sensor, HTS221?
I am considering to buy the HTS221 Digital Temperature and Humidity Sensor by STMicroelectronics. The datasheet says the operating temperature of the sensor is from -40°C to 120°C. But on page 33 of ...
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2answers
53 views
Datasheet part dimensions [duplicate]
I'm trying to draw up a part in EAGLE, but am having a hard time making out the datasheet dimensions:
For example, with the pin width, it's not clear whether it's 0.51 (mm, I presume) or 0.31. ...
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2answers
68 views
Polarised vs non Polarised Capacitor
Page 18. of http://www.ti.com/lit/ds/symlink/tlv5606.pdf shows a polarised capacitor. In a case like this, does it really matter whether the capacitor is polarised or not, as long as the capacitance ...
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2answers
50 views
Transistor KSP44 with Ic(max) 300mA can I use it for 150mA
I have some problems to understand the datasheet of the transistor KSP44 (and transistor in general).
I need to control a LED strip. I want to switch it up through a transistor NPN. My transistor ...
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1answer
44 views
Is it not recommendable to use a spectrum analyzer in its limit frequencies?
Suppose we have a spectrum analyzer whose range of frequencies goes from \$x \ \mathrm{Hz}\$ to \$y \ \mathrm{Hz}\$. Is there any problem that could arise from measuring signals that are near those ...
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1answer
37 views
Compatibility of an LCD module and a connector
I want to realize i2c communication myself using Raspberry Pi and a LCD module.
I am reading documentations to find an appropriate connector but I am a bit confused and I need help.
Here is the LCD ...
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1answer
36 views
What information does one need to size inrush current limiting resistors?
I am trying to find a replacement for resistor Vishay CP00021R000JE14, a 1 Ω, 2 W ceramic wirewound (R_MED in the diagram). On startup, this resistor limits the current dumping into 200 µF of ...
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1answer
70 views
XV0 and V0 - what does it stand for?
I'm looking for suitable GLCD, so far I have found the RX12864H, however the datasheet describes a lot of voltages and I'm bit confused.
While the VSS and VDD are clear to me, I have no clue what do ...
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0answers
57 views
Are datasheets translated into other languages (e.g., Japanese, Chinese)?
A recent video I saw surveyed Japanese folk on the street and their knowledge of English. The majority of those surveyed had little to zero working knowledge of the language. So that got me thinking - ...
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4answers
263 views
Total Device vs Total Package Dissipation
For my design I need a bunch of 2222A transistors with each transistor dissipating at maximum ~500mW of power. The transistors come in single packages, dual packages, and quad packages. The datasheet ...
2
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1answer
68 views
Mosfet datasheet reading and power calculation problem
Mosfet datasheet: http://www.farnell.com/datasheets/2255289.pdf
Hello, i have few questions about datasheet because they are so confusing. I would like to run 1,5 amps under 12 volts from drain to ...
2
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2answers
171 views
ATMEL 24C02 EEPROM - Trouble understanding how the addressing works
I am currently writing a library for ATMEL's 24C series EEPROMs (not a programming question). The library works fine with a single EEPROM at the moment and I am trying to support multiple EEPROMs now, ...
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1answer
57 views
What defines the sign of transistor rating values?
Here for example I have attached excerpts from two general purpose PNP transistor datasheets. One of them has negative values, other one positive.
I would like to understand what defines these values ...
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0answers
32 views
How to get datasheet of T118ES LCD driver by terawins?
I bought a cheap CD player that I intend to hack so that I can sneak in a composite signal into it. The part number of the video decoder IC is T118ES as in the image. Even after searching for days all ...
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2answers
87 views
Is the HP206C really so precise?
I'm looking for barometer sensors for use in Arduino projects. One of the items I consider is the HP206C (at Reichelt, Germany). The vendor contradicts himself a little bit when he mentions 0.1 m and ...
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2answers
57 views
Thermal parameters for the LM1117
Looking at the datasheet for the LM1117 regulator, on page 18 to 20 there's a table of various layouts for copper cooling planes for the LM1117 in SOT-223 and TO-252 packages. Comparing figures 30 and ...
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2answers
78 views
What is the best way to search components
I am a student of Electronic Engineering and right now I am doing my practicing in a company. When I was in the university, I have no problem searching a component, but here in the company needs ...
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0answers
27 views
What is the maximum output pulse width of this multivibrator?
I have an IC which is this multivibrator. And it is the model CD74HC123EE.
But I actually noticed on the receipt there was an indication as "short".
I also saw two folders in a folder called ...
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1answer
36 views
Is this voltage rating relative to ground or differential?
A transducer has this datasheet.
What is meant by Bu,g?
The amplifier I use applies +10V and -10V to excitation terminals so the difference between the terminals will be 20V and the excitation ...
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2answers
52 views
Can I guess the Rds(on) at 3.3 V from this MOSFET datasheet?
I ordered some MOSFET switch modules. Because they were advertised as "for Arduino" and "Voltage: 3.3V, 5V", I assumed they had chosen a decent MOSFET for the job (like the IRLU7843 or at least the ...
