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Posts Tagged ‘Texas Instruments’

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...

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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...

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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...

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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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Recent Comments

  • David Haile: You are a smart person and absolutely correct. That kind of current needs a lead acid car battery behind it. Still, it does have its...
  • KH: The solution discussed in the linked article is wrong. It's a largish Lipo (2500mAh) and he thinks 77uA is acceptable... ha ha ha ha ha....
  • Dave: I never had to opportunity to learn or use this stuff when I was in college (I'm sooo old that op-amps were just being developed...
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