Questions tagged [texas-instruments]
A manufacturer of semiconductors, both discrete and integrated circuits.
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MSP430 i2c txn buffer not moving second buffer command
In this code i have used B0 I2C module.
Problem - I f i I2C_Txn_byte() to send any command it sends the it the first time but doesn't get in the interrupt ISR again
for Example
...
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Boost converter gets hot
I'm building a LCD backlight power supply boosting 5 V to 12 V.
The max current draw from the panel is 12 V 0.4 A.
I am using LMR60214. But the IC is getting hot to touch at full brightness.
I am ...
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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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Thorlabs PC4QM With TI DRV2700EVM
I am working with a 650nF Thorlabs PC4QM piezo load, whose information I leave attached. And to carry out the operation I'm considering a Texas Instruments DRV2700EVM, has anyone had experience ...
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MSP430 Program Not Running Outside Debugger
I'm using a MSP430g2231 with EXP430G2 launchpad and CCS.
My code runs fine in the debugger, but when I try to burn it to the MSP and run on external power it doesn't run. It appears that it is not ...
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DC/DC split rail converter like TI's Fly-Buck™ coupled inductor topology but with a non-inverting buck converter
Introduction
First of all, I hope you can read this through. It's rather long!
I was trying to design a DC/DC converter for a Class-D amplifier that requires a 48V input and also an auxiliary 12V ...
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How to get the transfer function out of a Bode Curve on a datasheet?
I am trying to find the transfer function of AMC1350 out of its datasheet. I dont have any information about which degree of a lowpass filter or what kind it has. DC gain is 2/5. Cutoff frequency is ...
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What is the difference between SN74HCxxN and SN74HCxxAN parts?
I'm trying to compare between two different parts on Digikey: the SN74HC148N and the SN74HC148AN. Both pages link to the same datasheet, which does not list anything to do with an AN suffix. What is ...
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What is the meaning of the "E" in the part number of Texas Instrument's CD4000 series?
Most CD4xxx chips come with a part number of CD4xxxBE or CD4xxxUBE.
Official documentation tells you that B and UB stand for buffered and unbuffered outputs respectively, and mentions that the last ...
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Picking components for a battery power pack
I am a first-year Computer Engineering student building my first PCB and decided to go ahead and build a battery pack similar to the Shargeek Storm 2. I am using an STM32F103C8T6, an SPI-controlled ...
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Different Ground reference
I plan on making my own BMS for a 12S battery pack, and I found TI's TIDA BMS board and decided to use it as a reference to gain some understanding on how to develop safety circuit for the board. ...
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DC-DC variable resistor's side
I plan make DC-DC mini-PCB PCB like it. In my schematic I want regulate output voltage. Because of it I made R1 as variable resistor. In my schematic I am afraid that middle pin of variable resistor ...
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How do you use a DAC IC?
I'm attempting to use a DAC0802 chip from Texas Instruments, but I can't figure out why it's not working.
Before anyone asks, yes, I've read the datasheet.
Below I've added a diagram of the voltage on ...
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CC2533 chip is not recognized by CC debugger
I'm trying to connect CC debugger to a board with CC2533
I've connected GND,DC,DD,RST between the boards.
The board is powered externally with 5V.
I've powered the target board and connected the ...
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Understanding TXB0104 logic level shifter from TI
I’ve been reading through the data sheet and have been having trouble finding an answer. I’m looking to use this to communicate SPI between a 5V mcu and a 3V3 device. Can the TXB shift the 5V to 3V3 ...
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Boost converter TPS61040 output voltage higher than expected
Based on the datasheet of TPS61040, the output voltage of this boost converter is
$$V_{out} = 1.233V (1+\frac{R_1}{R_2})$$
Picture edited to show output capacitor
The input voltage is from USB which ...
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How to identify an integrated circuit without its datasheet?
I'm not sure if this is the right forum for the question, but I'm not sure where else to go.
Recently, an electronics component distributor from where I live (Cordoba, Argentina) has discarded some ...
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How to calculate the DeadBand time for H-bridge in Cycles
I am using L298n H-bridge driver and using Texas Instruments tiva c tm4c123gh6pm microcontroller. According to the datasheet (I am using source rise and fall delay because according to my ...
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What's the difference between Texas Instruments V62/06623-01XE and MAX3232MDBREP?
I'm using a MAX3232 but given different production codes with the same package (V62/06623-01XE, MAX3232MDBREP), is there any difference between them?
Can the two be used as substitutes for each other?
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Errors when importing TI PSpice component to Altium
I am trying to import a PSpice model of the TPS22811 into Altium without success.
What I did:
Download the model from the TI website
In Altium, edit the simulation property of my component and ...
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Are the Spice models for the TL082 and TL084 wrong?
I am working on a simple phase-lag circuit schematic using LT Spice, and, due to some project specifications, would like to simulate the behavior of the circuit specifically with FET-Input Operational ...
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CC1125 tramsmit data from the nanosatellite to ground station
does the chip cc1125 can transmit data between nanosatellites to ground stations the distance between them is up to 400km with band frequency UHF from uplink and vhf of the downlink.
If yes can use ...
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How current gets separated in multiple SW pins in buck converter?
In some high current buck converters, there are multiple SW pins for output current. How the current gets divided between them?
Example, lets consider a buck convertor has 5 SW pins and sourcing 30 A ...
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Low-side gate driver consistently shorts VDD to GND upon circuit power-up
I am using the UCC27423DGN dual low-side MOSFET driver as a current sink in order to drive some piezo elements. In general the gate drivers I am using are inverted, so on a high pulse on the Pulse_A/B ...
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Problems Comparator II of this CD4046 for LTspice
I downloaded a CD4046B model from user ale_t, which can be found here:
https://www.electro-tech-online.com/threads/new-spice-model-for-cd4046b-phase-locked-loop-ic.149093/
However, the Phase ...
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DRV8871 output voltage drop down error identify
I'm building a brush gear motor driver with TI drv8871. No speed adjustment needed, only forward/reverse is wanted.
The input voltage is 24V. The motor has a small coil resistance about 2.6 to 3.0 Ohm,...
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EPWM ISR taking to long in F280049C
A problem has been boggling me for a couple of days, for which I need your help. I use SYSGONFIG Tool to initialize and program my ePWMs for a 3-phase DAB converter. I have enabled an extra epwm7A on ...
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How do I get access to a Pure-Path console app for a Texas Instruments TAS5754M audio chip? TI makes it impossible to find an answer
I am in the process of repairing a bi-amped speaker with a TAS5754M amplifier in it. I can communicate with the chip over I2S and the signal flow is also working.
The only thing that is left to fix is ...
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Which SUBCKT to use (TI ADS9110) Orcad PSPICE
I am new to this simulation, and try to simulate the ADS9110 (TI ADC) using Orcad 17.4.
The TI has the PSPICE Model here: https://www.ti.com/product/ADS9110?keyMatch=ADS9110&tisearch=search-...
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How to set up MCP430 Pins for SBW?
Hello I'm a senior in college and I'm trying to develop a development board for the MSP430G2533IN20 Microcontroller, this is my first time working with TI MCU's, but I've worked with STM32 before.
I'm ...
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MSP 430G2553 Keypad Error
I am trying to use 4x3 Keypad with MSP430G2553.
I used code from electronicwings site
...
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Texas Instrument OPA192
I'm examining the datasheet of the OPA192. When the inverting input of op amp tied up the op amp output and if the non-inverting input of op amp had been floating, what would have happened the op amp ...
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Issue with liquid level sensing circuit with LDC0851 chip
I came across a video where TI demonstrates liquid level sensing via an inductive switch. I am trying to recreate this and understand the circuit they made. A forum provided this schematic:
Below I ...
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Where can I find Texas Instruments article for basic building componets? [closed]
I was searching web for some good reading material and I found this article by Texas Instruments.
Now I'm wondering where i can find TI archive for this kind of stuff?
Subject of article is not ...
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LMX2820 readback operation [duplicate]
How can a readback operation be done on LMX2820?
I've looked through over it's datasheet, register map and AN documents and there is no information about that. In LMX2594 read and write operations are ...
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Bad voltage output using the TI supplied TPS2557 TINA-TI to PSpice Conversion in LTSpice
I pulled the converted PSpice file for the TI TPS2557 Power Switch directly from the TI website. Copied the contents into LTSpice and created a symbol using the LTSpice auto symbol creator. Verified X ...
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Pad-to-Resistor trace too long in datasheet layout example (TLV803E)?
I'm layouting a board that includes the TLV803EF26DBZR voltage supervisor (or reset IC) chip.
In the datasheet, it is suggested that the IC is layouted in the following manner:
However, I wonder if ...
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How are I3_min and I3_max currents considered in design for discrete 4-20mA current transmitter?
How to consider Iout_min and Iout_max currents before fixing up the R1, R2, R3 and R4?
The document by TI for 4-20mA current loop using discrete components
For linear operation, the ratio of the ...
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OPA548 not generating correct output pulse
I have created a circuit for which I would like a rail to rail output of 0 - 15V, using an OPA548 with the driving waveform generated by a microcontroller DAC powered by 3.3V.
The datasheet for OPA548 ...
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Erratic SPI behavior between BeagleBone Black and ADS7883 ADC
Im trying to interface my Beaglebone Black with a TI ADS7883 SPI 12-bit ADC.
My hardware implementation is the same as this tutorial, except with a slightly different pinout from the BBB, namely:
<...
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What are the purpose of the extra diodes in this peak detector circuit (LM1815)?
This is the circuit diagram from the LM1815 datasheet. I understand everything in this circuit except for the two diodes that I have marked with red. They are in a peak-detector circuit, but all of ...
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CPLD Programming via Microcontroller
I am new to CPLD's and I have a CPLD connected to the microcontroller via JTAG. Xilinx has an application note (XAPP058) about programming but I could not understand very well. Steps that I understand:...
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Transmit error on CAN bus with MCP25625 boards
Setup: CAN bus with 2 nodes each with a microcontroller (CC26X2R1 LaunchXL evaluation board) and CAN controller with an integrated transceiver (MCP25625 click board).
I used the libraries for the ...
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How to edit data flash variables in BQ34Z100 fuel gauge IC with an MCU?
I have an 8s Lifepo4 battery pack ,I am using an TI BQ34Z100 fuel gauge Ic to calculate the soc of the battery pack but to configure the Ic for my battery pack I have to change the data flash ...
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Op Amp Error Calculation
I am attempting to calculate the total error in an op amp (OPA2333 to be specific) that is used in a voltage sensing circuit. If I use the OPA2333 model in my SPICE circuit, are the errors already ...
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Can't find formula to calculate resistor values for a BQ34Z100
I am designing a BMS board using the BQ34Z10 fuel gauge IC.
From the datasheet BQ34Z100 datasheet figure 8-3
I am unable to figure out how to calculate values for R2,R3,R4.
I am designing the system ...
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Which variant of amplifier to use?
I am making a pressure sensor circuit according to page ten of the manual here. There are just too many types of the recommended sensor LMV324 available in the SOIC type. Can someone help me decide ...
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INA219- I2c bus weird behavior
I have a PCB assembly where I built the circuit in the schematic below. I did not start programming yet.
I'm getting the weirdest problem. When I check the voltages in the SDA and SCL lines (which ...
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2
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Why are there so many variants of an Op Amp? Which one to chose? [closed]
I am directed in a user manual (Page 10) to use the LMV324 Amplifier. But when I search on the net there are just too many types of this amplifier with a lot of different types of suffixes. I need to ...
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Somebody who own MSP432P401R User Guide?
Is there somebody, who can deliver me the user guide for MSP432P401R? I know, this question looks dummy. However the mentioned part lost support from the side of Texas Instruments, and they cannot ...
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