Questions tagged [texas-instruments]
A manufacturer of semiconductors, both discrete and integrated circuits.
452 questions
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Type C and PD Adapter Detect and Negotation
I am revising our prototype Texas Instruments BQ25713 battery charger board and I need to know a few information before production.
Can BQ25713 detect input and negotation via Type-C and Type-C cable?...
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STM Microcontroller + MCF8316C Driver
I am currently designing a FOC motor driver with a MCF8316C chip from TI and I am having quite a lot of troubles to get it to work. I plan on controlling it with a PWM signal coming from a Nucleo-...
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Charger IC cannot charge with Type-C Data+Charging Cable on USB Port
I am using Texas Instruments(TI) BQ25713 Charger IC. When I use a basic type-c charging cable, the charger accepts and start charging very well however when I use a qualified type-c charging and ...
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maximum channel power calculation in "TIDA-010048" Channel-to-Channel Isolated Analog Input Module
according to TI document " https://www.ti.com/lit/ug/tiduen8/tiduen8.pdf?ts=1731778638924 " they say:
in page (2) Table 1. Key System Specifications
Power supply part for 2-wire transmitter ...
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The 3.3V Fixed Regulator was burned with 12V input
I am using TI TPS70933DBVR LDO.
Input: 12.6V (3S 18650 Battery)
Output: fixed 3.3V
When I connect the battery to circuit, the LDO is over heating and after 3 second, it will be burned but if I use 4....
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AM335x ICE EVM Rev2.1 it seems the datasheet, BOM, and schematic don't align more details down is there any s MT41J128M16JT-125 (84-ball FBGA package)
In TI’s document for the ICE design, they specify a 2 Gbit DDR3 SDRAM with part number MT41J128M16JT-125 in an 84-ball FBGA package. However, when searching on Micron’s official site and distributor ...
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PCIe 4 and 5 GT/s characteristic, its connection to frequency [duplicate]
While designing a board that uses PCIe gen5 interface, I was wondering how exactly gen5 standart achieves double data speed comparing to gen4 (32GT/s PCIe5 and 16GT/s PCIe4)? Both 4 and 5 are 16ghz ...
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IC identification - TI 08 ABI
I have a TI chip that I cannot find its part number. Can someone help me to identify its part number? It says "TI 08 ABI". I am currently using TI part marking look up link here: https://www....
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Maximum current drawn by Schmitt-Trigger
I'm looking at the SN74LVC1G1 Schmitt-Trigger Buffer.
I want to understand what is the maximum current the chip can draw from the power supply source.
Under "6.5 Electrical Characteristics - DC ...
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Shutdown Issues DRV8251
I am attempting to use a PSoC 6 (CY8CKIT-062-BLE Product Page) and Texas Instruments DRV8251 (Product Page) to drive a brushed DC motor. I have created a small driver board that interfaces with the ...
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Where is the Cf capacitor in this design for the LM2597SX-5.0? [duplicate]
I used the WEBENCH power designer tool from TI for the LM2596SX-5.0 buck converter(Vin min = 11V, Vin max = 13V, Vout = 5V, Iout max = 3A). The problem is I have a Cf capacitor in the bill of ...
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Is it possible to connect 6 two-wire RTDs to ADS124S08 Analog to Digital Converter using the following schematic
I have connected 6 two-wire RTDs to a ADS124S08 Analog to Digital Converter. My requiernments are to connect as many RTDs as possible to the chip with least amount of extra equipment and to achieve a ...
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Inductance to Digital Converter LC tank design issue [closed]
I'm designing a proximity sensing system based on this LDC by Texas Instrument.
In this context, I realized a simple LC tank with L = 23uH, Rs = 3.27 Ohm and a C = 1,5 nF.
The frequency response of ...
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Why are MOVs rated for mains voltages chosen for earth-to-signal protection in PoE PSE applications, as recommended in TI's SLUA818?
I wondered why TI in their application note SLUA818 says MOVs rated for mains voltages must be used between signals and earth:
Therefore, based on the above, the MOV used for the earthed PSE must ...
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Why am I getting a low output voltage (5.98V instead of 12V) from a LM2623 stepup converter?
I'm working on a project using the LM2623 boost converter, where I aim to achieve a 12V output.
I'm only getting around 5.98V at the output. I've double-checked my circuit and measured the voltage at ...
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Why is the output of the thermistor connected to the inverting terminal of the op-amp in this Texas Instrument IR thermometer schematic?
I am making an IR contactless thermometer by following this application note provided by Texas Instruments.
I have some doubts about a few connections in the schematic diagram provided.
Vref1 is ...
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TIDA-01513 Isolation Card Riso Calculation
Vref: 2.53V
iso_neg: 3V
batt_voltage: 100V
I am trying to calculate the Riso resistance using these equations, but I am getting unreliable results. When I rearrange the equation to isolate Riso, it ...
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Input bulk cap of a flyback converter
Doing calculation for input bulk capacitor of a flyback converter. Have attached my calcultions.
Also used Ti calculator.
Why am I getting different values? What am I doing wrong? And how to do the ...
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Confused about layout guidelines for TPS63710 buck converter
The TPS63710 is a low noise inverting buck converter capable of a relatively high efficiency conversion from 5V to -3.3V (according to TI's WEBENCH tool), but an aspect of the datasheet's layout ...
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DRV8835 two channels in parallel in IN/IN mode
I'm using a Texas Instruments DRV8835 dual H-bridge IC. This has two output channels, where each channel is an H-bridge (push-pull driver pair).
To use two channels in parallel for higher current ...
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Buck-Boost fault mode on startup and gradual current decrease
I am using the TPS92692 in buck-boost mode with an analog signal to set Iadj and PWM. When I start the circuit, it consistently goes into fault mode and the fault pin is periodically set low. However, ...
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Cannot get correct output in PSpice with the Buck Converter PSpice Transient Model from TI
I obtained the LM76005-Q1 transient model from the Texas Instrument website and imported it to PSpice. The website also provides a Design Calculator software, so I basically use it to determine other ...
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Why is the BQ25895 default system voltage 3.5V not 3.3V?
Why is the default system voltage 3.5V, not 3.3V even though, for example, the STM32 maximum voltage is 3.6V, but nominal is 3.3V?
BQ25895 datasheet.
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What is the IC marked as 858Z TI 31JP7J3 (can see the photo attached)?
Can anyone help me with this ic code written on the smd component
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How to simulate ADS131 ADC ic, its simulator model is not available anywhere. Is there any software(proteus/altium/kicad) on which i can simulate it?
I want to simulate this ADS131 IC as a part of bigger circuit but I'm not able to find this IC's simulator model in the proteus than how to do simulation?
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NE555 Trigger Voltage
I'm looking to use an NE555 in monostable mode, generating a pulse of defined length whenever the trigger level drops to a low state.
I was planning on powering the NE555 from the same source as my ...
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Best way to drive multiple LED strips at distinct times with one LED driver
Application:
6 LED strips: each strip has LEDs connected in series
Driver is TPS92691 (CC LED driver)
The source is a battery
The LED strips will be flashed in a carefully controlled cycle, starting ...
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Bias Voltage affecting op-amp at 0v
This question is a follow-up from the setup described here
Recap: I am designing a circuit which is intended to map a signal in the 0-5V range to the 1.75-7.0V range. To do this I am using an LM317T ...
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Selecting appropriate Opamp for RRO applications
I am designing a circuit which is intended to map a signal in the 0-5V range to the 1.75-7.0V range. To do this I am using an LM317T voltage regulator in conjunction with a TLC2272 Rail-to-Rail opamp. ...
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STM32F446 MCU SPI Problem with CC1120 Device
I'm currently working on a custom PCB with cc1120 datsheet as transceiver and stm32f446RET6 as MCU. I integrate the cc1120 library from IT's library. The device uses SPI as serial communication. Here ...
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OPA656 Simulation works on TINA but not on LTspice
As mentioned in the title I use LTspice as my main workflow to simulate circuits. One of my circuits is using an OPA656 amplifier. I attach a picture of a simple schematic I made to test the issue. It ...
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TM4C123 SPI slave reads only one byte
I'm sending the following sequence to an SPI slave in a Tiva TM4C123GXL board:
I have captured this directly from the MCU pins. Notice SCK is running at ~190 kHz (pretty slow).
The problem is that my ...
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C2000 PWM skips a compare on synchronization
I found a mitigation for the problem that I couldn't post to e2e.ti.com because they demand a company email (University won't do). See my self-answer below.
I'm using a TI microcontroller ...
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156
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Switching power supply has high ripple voltage no matter how many capacitors are added
I'm designing a board that uses a Texas Instruments TLV62569DBVR (datasheet here) to convert 5V input from a USB power supply to 3.3 volts to be used to power an ESP32-WROOM-32D-N4. I am having lots ...
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Is TI lying or over selling their solar charging ICs? [closed]
I came across the BQ25703A IC on TI's webiste. It clearly shows Solar input/MPPT. However, there is no mention of this in their datasheet.
So am I missing something or is TI lying and overselling this ...
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ADS7830 ADC unable to provide meaningful values with 3.3 V external reference
I made a board to read some analog values using an ADS7830 ADC. I wish to use a 3.3 V source as external reference voltage.
The schematic and layout are shown below (R6, R7, R14, C4, C5, and C6 ...
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TPS564247 switching voltage regulator problem
I have been working on a 12 V to 3.3 V DCDC converter that uses the TPS564247 switching regulator IC. Here is the schematic:
The problem is that the IC keeps resetting itself once a second. At first, ...
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Can't find ethernet packets sent by TMS570LS1227 microcontroller
SOLVED: there was a setting in HALCoGen that enabled loopback mode. I am stupid.
I am attempting to send a small packet over the ethernet port on a TMS570LS1227 using a TI-provided function I'll show ...
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Can't configure ADC using CCS THEIA -sys-config
Using a Ti MCU-MSPM0G1505. Using sys-config tool provided by Ti in CCS Theia .Trying to set ADC channel on pin 25.But not getting the option to set ADC on pin 25.Have attached the picture .Would any ...
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3.3V to 5V driver (push-pull) output too low
I was recently testing using SN74LVC1G17DCKR and was having trouble getting the output voltage to reach close to Vcc as per the datasheet. Vcc input is 5 V. My input was 3.27 V and I was getting ...
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LM431 shunt regulator
I'm trying to figure out how to set R1 + R2 on the LM431 shunt regulator. I have input V+ that I can't change at 9 V and I want Vout at 5 V. What value of resistors should I use for that? How does the ...
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LTspice - using an encrypted file
Is there a way to use a TI encrypted file in LTspice, specifically the TI PN TPSM63610?
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What is the difference between the DAC8562 and DAC8562T chips from Texas Instruments?
These two callouts have distinct product pages (https://www.ti.com/product/DAC8562?dcmp=dsproject&hqs=pf and https://www.ti.com/product/DAC8562T?dcmp=dsproject&hqs=pf) and distinct data sheets....
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TFP401PZP: Unable to get proper video output, ghost screen/distorted pixels
I have designed my own display driver board using a TI TFP401PZP TMDS DVI receiver/deserializer which is connected to a 24-bit, parallel RGB, 7 inch capacitive touch display with a resolution of ...
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TINA-TI - trouble with Digital-to-Analog Converter DAC161P997 Self-Powered Transmitter
I'm dealing with the DAC161P997 simulation on TINA-TI. Using the model from TI, the circuit appears to function correctly only if I leave out the capacitors on the pin.
Here's the setup – Data ...
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5
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854
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What does (DW) mean in the TI equivalent of SOIC (16) package?
TI datasheet says:
SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options
It doesn't mention what DW stands for.
I am annoyed when manufacturers come up with their own naming conventions ...
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BMS using BQ28Z620 (2s)
I am having a bit of trouble with understanding the provided implementation from the datasheet. I don't understand why the serial resistor connected to VC2/Pin11 is only 5R and has no 0.1uF decoupling ...
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Is it possible to slow down the rise time when using the DRV8412 for PWM?
I am using a DRV8412 to drive a 36 V DC motor with 100 kHz PWM. I see a radiation issue due to sharp 100 kHz PWM to the motor. When I probe the motor current, I see current ringing at each transition ...
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110
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TINA-TI - trouble with boost converter based on LM5002
I wanted to recreate the LM5002 circuit in the TINA-TI program, which I encountered for the first time today. I was inspired by the circuit from the link below:
LM5002
Unfortunately, the effects of ...
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0
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135
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LM27762 voltage regulator LTspice simulation error
LM27762 datasheet
I imported the latest model from the Design tools & simulation for the component.
I used the following layout from the datasheet as reference, capacitor values as defined in ...
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