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Questions tagged [datasheet]

Datasheets are the primary documentation about components, describing their functionality and electrical properties.

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Help with Valid TACH Count meaning in EMC2301?

I have started working with an EMC2301 with a fan, and I got some starting code, that set up the device for min RPM = 500, via bits RNGx in REGISTER 6-13: (0x32) ...
sdbbs's user avatar
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3 votes
2 answers
315 views

CH32V003 max GPIO current

I am trying to find what current can a GPIO of CH32V003 (the 10cent MCU) output. Its noticeably chinese english datasheet states (on p.21) GPIO (General-Purpose Input/Output Port) can sink or output ...
Osman-pasha's user avatar
4 votes
4 answers
1k views

MOSFET Datasheet Confusion

I am working on a 12v automotive circuit and I needed to switch a 12v solenoid with Pi Pico which has a 3.3v logic. Initially I picked an IRLB8721 MOSFET which claims a 2.5v V(gs) thinking it would ...
Fady Megally's user avatar
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1 answer
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endcoding of the manufacturer's date in a memeory map of a datasheet

I am looking at the datasheet of a bq2060A battery management chip. It loads some data from an EEPROM connected to it, one of the addresses stores the manufacturer's date in two hexadecimal values. I ...
vulubalulu balulu's user avatar
1 vote
1 answer
72 views

What is this component? (datasheet)

I can't find the datasheet online. The component is mounted in the circuit of a Bluetooth speaker
KaleM's user avatar
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What's the real absolute maximum output voltage of the 74LVC07?

Datasheets for the 74LVC07, such as this one from TI, and this one from Nexperia, state that the absolute maximum output voltage for the open-drain outputs (in high state) is +6.5V. There is a table ...
Simon Fitch's user avatar
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Finding old rf components datasheets

I've just received a load of old rf components used for X-W band and am at a loss for where to find information on them. A lot of the parts are from TRG division of Alpha Industries Inc. and it seems ...
DTBolt's user avatar
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2 votes
2 answers
197 views

Designing Optocoupler circuit

I'm trying to learn how to design an optocoupler using 6N137. datasheet : https://www.vishay.com/docs/84732/6n137_vo2601_vo2611.pdf There is no CTR (current transfer ratio) value or graph in the 6N137 ...
Mhan's user avatar
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1 answer
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Search Datasheet IT8786E-I/HX

Can you help me find the datasheet of IT8786E-I/HX ?
Maxime BOISDRON's user avatar
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0 answers
129 views

IRFZ44N Datasheet read value problem

I'm having trouble with reading values from datasheet of IRFZ44N. How can I find the value of Vth or K-B(UnCox*W/L) value at an arbitrary operating point? I want to use MOSFETs in my design but can't ...
ali demir's user avatar
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2 answers
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Please explain how these two different DAC configurations produce different output voltage ranges

This question is regarding the AD667 DAC. In a previous question I learned that the pin 1 5k resistor does not affect the output voltage range for unipolar mode (assuming I understood the responses ...
charles's user avatar
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2 votes
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Please explain why datasheet says to connect the feedback resistors in a particular way

The datasheet for the AD667 DAC shows how to connect the output to internal feedback resistors in different ways, in order to get different output voltage ranges. For output range of 0 to +5 V, it ...
charles's user avatar
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1 vote
2 answers
745 views

Can a 4066 IC work at 3.3V?

I am trying to incorporate a CD4066 in my circuit to switch a 3.3V signal. I am bad at reading datasheets but I think this datasheet says this IC works with 5V-15V between VDD and GND pins of the IC. ...
Iskander's user avatar
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2 answers
53 views

Can I go below recommended voltage range for a particular IC input pin?

The ISL71840SEH analog mux has an input pin VREF, which the datasheet says the recommended range is 4.5 to 5.5 V: It goes on to say that the logic threshold is about 30% of VREF, so for 5V VREF the ...
charles's user avatar
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3 answers
63 views

How does this input buffer work in schematic from Xilinx Virtex-5 user guide?

The following is from page 302 of the Xilinx VIrtex-5 User guide: https://docs.amd.com/v/u/en-US/ug190 It seems to me like the incoming signal should go into the input buffer and then the output ...
charles's user avatar
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2 answers
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As per Datasheet of BC817-40 the typical hfe value is 400 but in ltspice simulation for 143 volts the hfe value we are getting is 122 why?

We are using this circuit for the input load circuit. This circuit will work for the input voltage range from 24 to 143 V input voltage. For 24 V typical value (25 degree) collector current from the ...
Shreyas19's user avatar
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1 answer
30 views

Troubles in understanding the TGA2214-CP microwave power amplifier datasheet

The datasheet of the Qorvo microwave amplifier is here. I have troubles with the following points: In p. 9, they give a schematic of the way to mount the amplifier (I believe). But at the end of the ...
MikeTeX's user avatar
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1 vote
1 answer
22 views

Strange behaviour of the gain register on image sensor OV7251 (with graphs!)

I am working with the OV7251 image sensor from Omnivision (sorry, the datasheet is not public, so I can't link to it). According to the datasheet, the gain and exposure can be set. The datasheet ...
Rocketmagnet's user avatar
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Switch Symbol on a Datasheet Block Diagram [duplicate]

I have seen quite a few times in datasheets this switch symbol (at the red circle on the attached picture) on block diagrams. Do you know what is his formal name and if it isn’t a “simple” switch (...
DarkKnight's user avatar
2 votes
1 answer
133 views

How does \$R_{ISET}\$ work in this Boost Converter?

I'm trying to design a boost converter for a backlight which has Vf:10.6-13.6V, If:140mA I picked AP3031, I did steps required to find component details e.g Inductor Value, Iswmax So far I understand....
S_D's user avatar
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1 vote
0 answers
140 views

USB connector: inward positioning relative to front panel

I am going to use 292336-1 USB connector and having difficulties figuring out the information on recommended inward offset relative to front panel surface. The datasheet, in its recommended PCB layout,...
Anonymous's user avatar
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58 views

Determining if a multimeter will damage ICs - How to confirm?

I’m looking for a straightforward way to determine if a particular multimeter will damage sensitive electronics such as ICs. Specifically, let’s say I have a Fluke 117 multimeter and I am trying to ...
KRitiCal_m4ss's user avatar
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1 answer
37 views

About "source/sink current on FB line" in IP2701 datasheet

There is a part I don't understand while reading the IP2701 dataset. [When fast charging client-side device connected, IP2701 auto-detect the type of charging standard and analysis the power ...
 8  minikhh's user avatar
16 votes
4 answers
3k views

How can tiny MOSFETs be rated for relatively high current?

I'm looking at this MOSFET for example, the IRLS3034, which according to its datasheet, can handle a continuous current of 343A. The wire lead looks like it's about 1mm wide. It looks like it will ...
CaptainCodeman's user avatar
0 votes
1 answer
48 views

How to find current consumption of IC from datasheet?

How do we find out the current consumption of TCAN33x family ICs from the datasheet? I am creating a power tree diagram for my project. For that, I need to find the current consumption of each IC But ...
Monesh Rathod's user avatar
-1 votes
1 answer
54 views

Reverse Breakdown Voltage for a diode

Could anyone explain why is the reverse breakdown voltage measured for a general diode? Diodes work in the forward biased region. Then why is it important to know the reverse breakdown voltage?
Curious_guy's user avatar
9 votes
4 answers
1k views

I do not understand behavior of current in 74HC4066

From the Nexperia 74HC4066 datasheet, page 4, table 4, footnote 1, what does it mean: To avoid drawing VCC current out of terminal Z, when switch current flows in terminals Yn, the voltage drop ...
agusha's user avatar
  • 93
15 votes
3 answers
2k views

Why does an inductor's inductance decrease with current?

I am struggling to understand what seems like a fundamental behavior of an inductor. I am looking at a chip mount LQM18PN2R2MFR inductor. One of the diagrams on the manufacturer's website shows a ...
tronhawk's user avatar
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2 votes
2 answers
509 views

What is meant by operation mode of a resistor?

The datasheet refers to different operating modes for the resistor with the below note- What does it really mean? Note: The presented operation modes do not refer to different types of resistors, but ...
Dynamic_equilibrium's user avatar
1 vote
1 answer
72 views

Looking for an obscured amplifier

I got this amplifier for a (glas)fiber switch. My guess is that this is originally an audio amplifier. Unfortunately the company that made the PCB obscured the part with a laser engraver. I only ...
Albrecht's user avatar
1 vote
1 answer
51 views

Solid-state relay input characteristics

I am a bit confused by some of the specification on this solid state relay LD00KM. I am looking at the case in which this relay is used in the 2 Terminal Input (Direct Drive) Configuration as shown in ...
Gman's user avatar
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0 votes
1 answer
30 views

Reverse voltage parameter Vr in constant current regulators

I don't quite understand the meaning of the reverse voltage (Vr) parameter of constant current sources. For example the Diodes Incorporated BCR401UW6. Suppose that at the OUT output of the IC there is ...
GenGen's user avatar
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0 votes
1 answer
83 views

OLED SSD1306 Lower and upper column addresses

I am currently working with an SSD1306 OLED display. I'm stack with understanding concept of the lower and upper column start addresses. I become interested in them cause I'm trying to find a way to ...
Pavlo's user avatar
  • 13
0 votes
1 answer
43 views

Current sensor output impedance information

I am using ZXCT1084QE5TA high-side current sensor, upon inspecting datasheet I came across this very weird output impedance information, which I don't really understand. There are two versions of ...
Dominykas's user avatar
  • 433
0 votes
1 answer
35 views

VBPW34S vs BPW34S-Z key differences?

I have a circuit for detecting frequencies in light noise. Its a reverse bias mode circuit where the photodiode is coupled to a trans-impedance amplifyer circuit via a ceramic capacitor. I use it to ...
Mickrige McMahon's user avatar
1 vote
0 answers
53 views

How do I interpret this analog switch logic diagram?

The following is the logic diagram of a single pole double throw analog switch that I am trying to use. Specifically what I am wondering is if it connects one of nY ...
Busti's user avatar
  • 457
0 votes
0 answers
64 views

Parameter Interaction Graph of JFET

I am looking at datasheet of the MMBFJ175 P-Channel JFET (Datasheet). There is one graph were I have a really hard time to understand, what it means and how to interpret it. . IDSS doesn't have a ...
Lucas's user avatar
  • 525
0 votes
2 answers
152 views

IC BP9916C Block Diagram

Could you explain the functioning of each block in the IC BP9916C block diagram? datasheet :https://datasheetspdf.com/mobile/1086203/BPS/BP9916C/1
Levon's user avatar
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0 votes
2 answers
284 views

MOSFET selection for high current

I found a few teardown videos for the Daly BMS and the JK-BMS. These BMS are rated for higher currents like 150A - 250A. Based on the teardown, the 16S Daly BMS uses JMSH0804AE N-channel MOSFET. ...
Momobear's user avatar
  • 117
3 votes
2 answers
144 views

Interpreting Diode-Module Datasheet (Voltage Drop)

I'm trying to interpret the datasheet of a Dual-Diode Module, specifically the MF200C12F2N. The internal Circuit Structure is given below: The Forward Voltage is given as 2.3V without any further ...
Tomb1789's user avatar
1 vote
1 answer
172 views

Determining the maximum input power of a photosensor for a given laser power input

I need to measure the average power of a 1550nm pulsed laser output using a photodiode. The datasheet of the Thorlabs FDG03 photodiode can be found here (or if these links fail, the product page with ...
floppy380's user avatar
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0 votes
0 answers
80 views

Looking for a TCXO with marking R26MOK6

I want to use a device (GNSS) for generating a clock signal that has this TCXO on it. I don't find any useful information with the given marking. My guess is, that this TCXO has 48MHz. The reason why ...
Albrecht's user avatar
0 votes
1 answer
67 views

What is this logic gate / electric symbol

I was looking through the MAX3232 datasheet (for a uni project) and I found these strange looking not gates (seen in the below picture) with an s-like symbol inside. I've been trying to find what it ...
GН057 ZЗЯ0's user avatar
3 votes
3 answers
1k views

From an OEM side, how would someone be able to perform root cause analysis on application design?

Apologies for my ignorance on the subject but I am still relatively new in my career. This also might be a vague question as well. The only troubleshooting I've done on the silicon level was a dye-and-...
user avatar
0 votes
3 answers
85 views

Level-shifter IC connected to microcontroller

I am trying to do a power assessment of a microcontroller (TMS320F28379D, datasheet link: https://www.ti.com/lit/ds/sprs880o/sprs880o.pdf?ts=1702312460730). The output pins of the microcontroller is ...
curious_direwolf's user avatar
0 votes
2 answers
81 views

Current into level shifter IC from microcontroller

I am trying to do a power assessment of a microcontroller (TMS320F28379D, datasheet link: https://www.ti.com/lit/ds/sprs880o/sprs880o.pdf?ts=1702312460730) From the below datasheet, is \$ 4mA \$ the ...
curious_direwolf's user avatar
1 vote
2 answers
386 views

What is the purpose of different units in pressure sensors?

Here is the datasheet of Honeywell ABP2 Pressure Sensors series. In Figure 7 on page 11, you can see a lot of options. Here are the absolute ones: I don't understand why they have to provide ...
Mark's user avatar
  • 1,235
2 votes
1 answer
73 views

HIP4081 Full Bridge FET driver peak pull up/down current

The datasheet for the HIP4081A bridge driver references a limit of 2.5 A "pull up"/"down" current. I thought the maximum load current in a bridge is limited by the FETs themselves, ...
Freeman's user avatar
  • 307
1 vote
1 answer
51 views

Setting VBUS_MIN and ISNK_COARSE/FINE on an Infineon CY4535

I am using the Infineon CY4535 EZ-PD evaluation kit to power a 5V, 3A device from a USB-C source. I am having trouble reconciling schematics and tables given in the documentation (PDF link here) that ...
skrrgwasme's user avatar
0 votes
0 answers
22 views

Choosing the right current sensor for the PMSM motor drive application

I have a 400W PMSM motor. It has a rated current of 2.4A with 3000RPM and 108V. The motor datasheet says that it can go upto 4500 RPM with load current of 4A. The motor is HG-KR43. Now I want to read ...
Syed Kumayl Raza Moosavi's user avatar

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