Categories

Posts Tagged ‘Texas Instruments’

App note: Overcurrent event detection circuit

Sunday, November 18th, 2018

Sample overcurrent detection circuit from Texas Instruments. Link here (PDF) This is a unidirectional current sensing solution generally referred to as overcurrent protection (OCP) that can provide an overcurrent alert signal to shut off a system for a threshold current and re-engage the system once the output drops below a...

Tags: , ,
Posted in app notes | No Comments »

App note: Active filtering in automotive audio applications

Sunday, November 18th, 2018

App note from Texas Instruments on isolating DC and high frequency noise in audio using their automotive op amps. Link here (PDF) Phone calls, emergency alerts, and music are just a few of the reasons that a high quality audio system is vital in automotive infotainment and clusters. Operational amplifiers...

Tags: , , ,
Posted in app notes | No Comments »

App note: Capacitive sensing: Direct vs remote liquid-level sensing performance analysis

Sunday, July 1st, 2018

Capacitive liquid level sensing method comparison discussed in this app note from Texas Instruments. Link here (PDF) Capacitive-based liquid level sensing is making its way into the consumer, industrial, and automotive markets due to its system sensitivity, flexibility, and low cost. With using TI’s capacitive sensing technology, the system flexibility...

Tags: , ,
Posted in app notes | No Comments »

App note: How to select an ambient light sensor for your end equipment

Sunday, June 10th, 2018

Another application note from Texas Instruments about ambient light sensors and how to effectively use them. Link here (PDF) Generally, when someone thinks of trying to design a system with an ambient light sensor there are four main concerns or problems that need to be addressed. The most important features...

Tags: , ,
Posted in app notes | No Comments »

App note: How to isolate signal and power in isolated CAN systems

Sunday, June 10th, 2018

CAN system isolation app note from Texas Instruments, Link here (PDF) With the increase in the usage of signal isolation in many industrial and automotive applications, the need for isolated power has also increased. The benefits of isolation are lost if the power supplies on either side of the isolation...

Tags: , ,
Posted in app notes | No Comments »

App note: Detecting selfie sticks using TI audio jack switches TS3A227E and TS3A225E

Sunday, June 3rd, 2018

Old app note from Texas Instruments on smart phone selfie sticks button detection. Link here (PDF) Selfie sticks are becoming as common of a smart phone accessory as a pair of headphones. Because of the selfie stick’s increasing popularity, smart phone manufacturers need to be able to accommodate the accessory....

Tags: , ,
Posted in app notes | No Comments »

App note: EMI-hardened operational amplifiers reduce inaccuracies

Sunday, June 3rd, 2018

EMI reduction built-in on op amps, app note from Texas Instruments. Link here (PDF) Operational amplifiers (op amps) with electromagnetic interference (EMI) filters can reduce significant errors. These types of errors are not always obvious to the system designers. They often impact the signal chain, in particular the analog-to-digital converter...

Tags: , ,
Posted in app notes | No Comments »

App note: How to properly configure unused operational amplifiers

Sunday, May 27th, 2018

Good read app note from Texas Instruments about configuring unused op amps on multi amp chips. Link here (PDF) Multi-channel operational amplifiers (op amps) are often implemented in circuits that do not require the use of all channels. Undesired behavior in an unused amplifier channel can negatively impact system performance,...

Tags: , ,
Posted in app notes | No Comments »

App note: Current sense amplifiers in class-D audio subsystems

Sunday, May 27th, 2018

App note from Texas Instruments about output current sensing in class-D amplfiers. Link here (PDF) Current sensing in audio subsystems are widely used in conjunction with CLASS-D amplifiers for diagnostics or to provide speaker current feedback to the DSP for speaker enhancement to emulate smartamp. The most expensive component in...

Tags: , , ,
Posted in app notes | No Comments »

App note: Implementation of a single-phase electronic watt-hour meter using the MSP430AFE2xx

Sunday, October 15th, 2017

Another energy meter from Texas Instruments using MSP430AFE2xx. Link here (PDF) This application report describes the implementation of a single-phase electronic electricity meter using the Texas Instruments MSP430AFE2xx metering processors. It includes the necessary information with regard to metrology software and hardware procedures for this single chip implementation.

Tags: , , ,
Posted in app notes | No Comments »

App note: Extend current transformer range

Sunday, October 8th, 2017

Design note from Texas Instruments on technique in resetting and negative voltage generation from current transformers. Link here (PDF) Transformers are used extensively for current sensing because they can monitor currents with very low power loss and they have wide bandwidth for good waveform fidelity. Current transformers perform well in...

Tags: , ,
Posted in app notes | No Comments »

App note: Understanding undervoltage lockout in display power devices

Sunday, April 16th, 2017

Texas Instrument's application note about how undervoltage lockout (UVLO) protect devices from undefined behavior. Link here (PDF) Many integrated circuits include an undervoltage lockout (UVLO) function to disable the device at low supply voltages. Below the minimum supply voltage the function and performance of a device may be undefined, making...

Tags: , ,
Posted in app notes | No Comments »

App note: Load switches: What are they, why do you need them and how do you choose the right one?

Sunday, April 9th, 2017

Application report from Texas Instruments on load switches to simplify power supply design. Link here (PDF) Integrated load switches are electronic relays that can be used to turn on and turn off power supply rails in systems. Load switches offer many other benefits to the system and can include protection...

Tags: , ,
Posted in app notes | No Comments »

App note: Low-power battery temperature monitoring

Sunday, March 26th, 2017

Low current consumption temperature battery monitoring TMP303 from Texas Instruments. Link here (PDF) Charging a battery cannot be independent of temperature. In fact, most batteries specify a range of temperatures where charging is permitted. Charging outside these bounds risks damage, failure or worse. To prevent charging when the temperature is...

Tags: , ,
Posted in app notes | No Comments »

App note: Stopping reverse current flow in standard hot swap applications

Sunday, March 26th, 2017

Application report from Texas Instruments about a simple circuit that blocks reverse currents. Link here (PDF) The proposed circuit uses an inexpensive operational amplifier to sense the condition of the output voltage exceeding the input voltage, and subsequently disable the hot swap controller, stopping the flow of reverse current (current...

Tags: , ,
Posted in app notes | No Comments »

TI’s Little Professor

Monday, January 23rd, 2017

A teardown of TI's Little Professor vintage calculator from KuzyaTech: This thing was sold for parts and repair since the seller did not think it was working. As it turned out, everything worked just fine, but not in an expected way. This is not your typical calculator, but rather a teaching one....

Tags: , ,
Posted in Teardowns, vintage | No Comments »

App note: Noise analysis for high-speed op amps

Sunday, December 4th, 2016

An application report on op-amp noise analysis from Texas Instruments. Link here (PDF) As system bandwidths have increased, an accurate estimate of the noise contribution for each element in the signal channel has become increasingly important. Many designers are not, however, particularly comfortable with the calculations required to predict the...

Tags: , ,
Posted in app notes | No Comments »

App note: TPS25810 Charging Port Over USB Type-C™

Sunday, November 27th, 2016

Allow more current from USB Type-C port, an application note from Texas Instruments utilizing TPS25810 and TPS2544 USB port manager. Link here (PDF) The TPS25810 is a USB Type-C downstream facing port (DFP) controller that monitors the USB TypeC™ configuration channel (CC) lines to determine when a USB device is...

Tags: , ,
Posted in app notes | No Comments »

App note: bq77905 20S cell stacking configuration

Sunday, November 27th, 2016

Application note from Texas Instruments on their bq77905 ultralow power stackable battery protector. Link here (PDF) The bq77905 is a 3-5S Low Power Protector with easy stacking capabilities for higher than 5S cell battery packs. This document provides an example for setting up a stacking configuration with the bq77905 and...

Tags: , ,
Posted in app notes | No Comments »

App note: LDC0851 quick-start guide

Sunday, November 13th, 2016

Texas Instrument's differential inductive switch LDC0851 application guide. Link here (PDF) Texas Instruments introduced the LDC1000 in 2012, the industry’s first inductance to digital converter. LDC1000 revolutionized the world of proximity sensing by delivering increased reliability, high resolution, and lower total system cost. The LDC1000 was soon followed by second...

Tags: , ,
Posted in app notes | No Comments »

Next Page »

Recent Comments

  • Sjaak: I love those spade connectors. Where to get them?
  • Justin Myers: Always worth a shot!
  • Jack: Honesty is based upon objective fact, and truth upon perception which is invariably subjective. Therefore be honest, and let history make its own decisions.
  • Crawford: Lucky?
  • hli: Sunday++