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Posts Tagged ‘Texas Instruments’

App note: The LM4935 headset and push-button detection guide

Sunday, May 1st, 2016

Another headset plug-in detection from Texas Instruments. Link here (PDF) The headset detect circuitry can differentiate between mono, stereo, mono with microphone, and stereo with microphone headsets. It can operate while the LM4935 is placed into low current standby mode, which promotes extended battery life. In standby mode, it consumes...

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App note: Auto-zero amplifiers ease the design of high-precision circuits

Sunday, February 7th, 2016

An application note from Texas Instruments on new chopper amplifers superiority over old design chopper amps. Link here (PDF) This article shows that the auto-zero calibration technique is very different from the chopper technique and is one that, when implemented through modern process technology, allows the economical manufacturing of wideband,...

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App note: Understanding thermal dissipation and design of a heat sink

Sunday, October 25th, 2015

Application report from Texas Instruments on heatsink designs. Link here (PDF) Power dissipation performance must be well understood prior to integrating devices on a printed-circuit board (PCB) to ensure that any given device is operated within its defined temperature limits. When a device is running, it consumes electrical energy that...

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SimpleLink ultra-low power wireless MCU platform

Wednesday, February 25th, 2015

Allie informs us of TI's new SimpleLink ultra-low power wireless platform for Bluetooth Smart, 6LoWPAN, ZigBee, Sub-1 GHz and ZigBee RF4CE Today, TI is helping manufacturers throw out the battery for their IoT devices with its new SimpleLink ultra-low power wireless MCU platform. This new wireless MCU family brings a first...

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App note: 868 MHz, 915 MHz and 955 MHz inverted F antenna

Saturday, November 15th, 2014

868 MHz, 915 MHz and 955 MHz inverted F antenna (PDF) application note from Texas Instruments: This document describes a PCB antenna designed for operation in the 868 MHz, 915 MHz and 955 MHz ISM bands. This antenna can be used with all transceivers and transmitters from Texas Instruments, which operates...

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App note: White LED driver with digital and PWM brightness control in 2mm x 2mm QFN package

Saturday, August 2nd, 2014

An application note from Texas Instruments, white LED driver with digital and PWM brightness control (PDF!): With a 40-V rated integrated switch FET, the TPS61160/1 is a boost converter that drives LEDs in series. The boost converter runs at 600kHz fixed switching frequency to reduce output ripple, improve conversion efficiency,...

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App note: Design of a low cost, 45W flasher with short circuit protection using LM2902 (Quad Op-Amp) and CSD18534

Sunday, July 27th, 2014

App note (PDF) on automobile flashers from Texas Instruments This Application note presents the design of a low cost, flasher circuit with short circuit protection. The design incorporates the entire recommended design feature set for two wheeler flashers and includes low/high voltage operation, half load frequency doubling, and short circuit...

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A single-supply Op-Amp circuit collection

Saturday, July 12th, 2014

An application note from Texas Instruments, A single-supply Op-Amp circuit collection (PDF!): There have been many excellent collections of op-amp circuits in the past, but all of them focus exclusively on split-supply circuits. Many times, the designer who has to operate a circuit from a single supply does not know how...

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App note: Adjustable Electronic Load for Low Voltage DC Applications

Sunday, March 30th, 2014

Here's an old but still good app note from Unitrode (Texas Instruments) on Adjustable Electronics Load. Testing power supply regulation over a specified output current range is greatly simplified with the use of an adjustable electronic load. Load current can be varied from zero to the full rated value with...

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App note: Understanding basic sensored BLDC motor operation

Sunday, June 23rd, 2013

[embed]http://www.youtube.com/watch?v=0mQunSe2_FM[/embed] Here's a video tutorial from Texas Instruments describing basic sensored BLDC motor operation. Michael Firth, Motor Driver marketing manager, discusses the basic operation of a BLDC motor.

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2-section filter for low noise power supply

Saturday, April 13th, 2013

[embed]http://www.youtube.com/watch?v=hIyvgEaKB8I[/embed] This video by Robert Kollman, TI senior applications engineer,  discusses how to use a two section filter for a low noise power supply.

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How to measure stability when testing power supplies

Saturday, April 6th, 2013

[embed]http://www.youtube.com/watch?v=HJSaIqWzM9w[/embed] Here is a video from Texas Instruments describing how to measure stability when testing power supplies.

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App Note: How to test power supplies

Sunday, March 31st, 2013

[embed]http://www.youtube.com/watch?v=pKXPqApOYfk[/embed] Here is a video from Texas Instruments describing how to test DC-DC power supplies. Measurement of ripple and transient noise of switching power supplies is described in detail.

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App note: Benefits and pitfalls of aluminum electrolytic capacitors

Sunday, February 10th, 2013

[embed]https://www.youtube.com/watch?v=QgtLYSkczSg[/embed] A video tutorial on the benefits and pitfalls of using aluminum electrolytic capacitors. Learn how these capacitors degrade, and how their life cycle is proportional to the stresses you put them through.

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App note: Regulator output voltage accuracy

Saturday, February 9th, 2013

[embed]https://www.youtube.com/watch?v=mAloL8seWNE[/embed] Texas Instruments goes over regulator output-voltage accuracy, warning that feedback resistor tolerances have a high impact on the output accuracy and should be chosen with care.

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App Note: Capacitors and their parasitic components

Sunday, February 3rd, 2013

[embed]https://www.youtube.com/watch?v=dFUx454H1lM[/embed] As with all electronics components capacitors can never be ideal, there are always parasitic components that have to be considered as well. With capacitors the most prominent parasitics are Equivalent series resistance (ESR), and Equivalent series inductance (ESl). The video recorded by Texas Instruments describes 3 most common capacitor...

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App Note: Nuts and bolts of delta-sigma analog to digital converters

Saturday, December 29th, 2012

[embed]http://www.youtube.com/watch?v=oVti3b4rqQA[/embed] Here's is a video from Texas Instruments describing the inner workings of delta-sigma analog to digital converters. The DS ADC is broken down into it's basic parts. The delta-sigma modulator and digital decimating filter are then discussed. Delta-sigma converters are ideal for converting signals over a wide range of...

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App note: Bootloading 101

Sunday, December 23rd, 2012

[embed]http://www.youtube.com/watch?v=Jcan8YfLfLs[/embed] Texas Instruments describes bootloaders and what they are all about. A bootloader is a piece of code that allows new firmware to be loaded into a microcontroller without a dedicated programmer. All of our projects use a bootloader so you can upgrade over a USB or serial connection. For...

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App note: Motor pre-drivers vs integrated drivers

Sunday, December 16th, 2012

[embed]http://www.youtube.com/watch?v=A3U6uiipWLM[/embed] Here is a video from Texas Instruments describing the differences in motor pre-drivers vs integrated drivers. Pre-drivers have all the control circuitry but the FETs are external, while in integrated drivers everything is on one IC. Because pre-drivers use external FETs, you can select the ones with much lower...

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FRAM MCUs for Dummies book giveaway at Mouser

Monday, September 10th, 2012

Mouser is giving away the Texas Instruments FRAM MCUs for Dummies book. Hand over your personal details to Mouser if you're willing, and they'll send you the book. Could be fun. Via the forum. Thanks Chuckt!

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