Simplify your DC/DC #design with @texasinstruments via @oemsecrets

Simplify your DC/DC design with LMZM33603

The LMZM33603 36V, 3A power module offers stellar EMI performance in a compact QFN package.
Order yours today and enjoy the peace of mind that comes with reliable performance, small solution size, and reduced design cycle time.

Power your processor with the industry’s first 5+3- phase PMBus controller


Powering high-current processors requires flexible solutions, and the TPS53681 PMBus multiphase PWM buck controller delivers with dual output 6+2/5+3 phase configuration. This multiphase driverless controller is paired with TI smart power stages for accurate current sensing and excellent thermal performance.

The next generation of TVS surge diodes is here


With a 94% smaller footprint, lower leakage and flat-clamping technology, TI’s Flat-Clamp portfolio provides more robust protection than traditional TVS surge diodes.

TI’s new TVS3300 family of Flat-Clamps gives designers precise control over clamping voltage vs surge current, even across temperature. It’s time to re-evaluate your TVS protection. Learn more in the whitepaper.

NEW: Industry’s smallest 8A single-rail module


Powering your 4A to 8A digital load just got smaller, easier, and more reliable. At 7.5mm x 7.5mm, the TPSM84824 17V, 8A step-down power module provides the smallest footprint in its class. And with TurboTrans™ technology, it delivers fast transient response with the industry’s lowest overshoot.

TPSM84824 comes with minimal external components, and pin- and footprint-compatible 4A and 6A alternatives.

Introducing TI’s first PMBus power module


Presenting an easier way to power your high-current digital core: TPSM846C23 is a PMBus-compliant DC/DC power module with an integrated inductor and FETs that crams 35A of output current capability into 240mm2. Two of these modules can easily be paralleled to deliver up to 70A of output current to the point-of-load from a nominal 12V or 5V input voltage.

Save space in your automotive design with TI’s synchronous buck-boost DC-DC converter


The TPS5516x-Q1 family provides a cost-effective single chip solution for a regulated output voltage between 5V and 12V, with up to 1A load current depending on voltage requirements. The buck-boost overlap control ensures automatic transition between step-down and step-up mode with optimal efficiency.
These buck/boosts provide a smaller solution size and higher efficiency than a discrete boost-buck converter solution.

Highest efficiency and lowest standby power without the audible noise


Want the lowest standby power? Need to simplify your system design for your AC/DC applications? Get to know our newest power factor correction (PFC) controller, UCC28056. With zero cross detection scheme (without auxiliary winding) and advanced burst mode, UCC28056 will help you design your next offline system.

6A three-level buck battery charger enables faster charge times for portable electronics


TI’s BQ25910, the industry’s first integrated 6A three-level buck battery charger, is a game-changer for how we will charge our smartphones, tablets, electronic point of sale (EPOS) and other portable electronics in the future. New power conversion technology reduces battery charging time up to 50% and allows for up to 5% efficiency improvements compared to conventional architectures.

Get great EMI and thermal performance the easy way


Any engineers out there looking for high-efficiency DC/DC conversion without the headaches that typically come with EMI mitigation and thermal management? Everyone? Ok, good.

Introducing the LM73605/6 and LM76002/3 families of wide VINsynchronous buck converters. Designed with high integration, thoughtful pin-out, and best-in-class thermal coefficients, LM73605/6 and LM76002/3 give you amazing performance without all of the headaches.

The world’s smallest 36V, 1A DC/DC solution


With a 27mm2 package size and only two external components, the LMZM23600/ 01 power module can convert a nominal 24V input to 3.3V in a solution size that is 45% smaller than competition. With the simplicity of power modules paired with the magic of WEBENCH®, you can bring the world’s tiniest 36V, 1A buck design to market with blazing speed.

To find the best price for Texas Instruments search OEMsecrets

IR Remote Control Detective based on ATtiny85

David Johnson-Davies published another great and detailed tutorial on how to build an IR remote control detective. He writes:

The IR Remote Control Detective decodes the signal from several common types of infrared remote control, such as audio, TV, and hobbyist remote controls. To use it you point a remote control at the receiver and press a key; it will then identify the protocol, and display the address and command corresponding to the key.

IR Remote Control Detective based on ATtiny85 – [Link]

Nui – IR Volume Controller

Alvaro Prieto made an IR volume controller and wrote a post on his blog detailing its assembly:

Nui is an IR controlled volume controller for analog audio. It sits between your audio source and speakers and can amplify or reduce the volume using IR commands (and eventually BLE).
Why do I need this?
It all started because I have my trusty Logitech Z-2300 speakers and subwoofer I purchased back around 2004/5. They still work great, but instead of being on my computer, they are used for my TV. Unfortunately, the TV’s line out doesn’t honor the TV’s volume and is always outputting at max volume. Sure, I can get up and change the volume on the speakers themselves, but wouldn’t it be more convenient to do it with the TV remote?!
That’s how the Nui project started. It sits between my TV and my speakers and now I don’t have to get up to change the volume 😀

Nui – IR Volume Controller – [Link]

Analog Devices’ tiny µModule boost regulator for low voltage optical systems

Analog Devices, Inc. has announced the Power by Linear LTM4661, a low power step-up µModule regulator in a 6.25mm x 6.25mm x 2.42mm BGA package. Only a few capacitors and one resistor are required to complete the design, and the solution occupies less than 1cm²single-sided or 0.5cm²on double-sided PCBs. The LTM4661 incorporates a switching DC/DC controller, MOSFETs, inductors and supporting components. The LTM4661 operates from a 1.8V to 5.5V input supply, and continues to operate down to 0.7V after start-up. The output voltage can be set by a single resistor ranging from 2.5V to 15V. The combination of the small, thin package and wide input and output voltage range is ideal for a wide range of applications including optical modules, battery-powered equipment, battery-based backup systems, bias voltage for power amps or laser diodes and small DC motors.

The LTM4661 can deliver 4A continuously under 3.3VINto 5VOUT, and 0.7A continuously under 3.3VINto 12VOUT. The LTM4661 employs synchronous rectification, which delivers as high as 92 per cent conversion efficiency (3.3VIN to 5VOUT). The switching frequency is 1MHz, and can also be synchronised to an external clock ranging from 500kHz to 1.5MHz. The LTM4661 1MHz switching frequency and dual phase single output architecture enable fast transient response to line and load changes and a significant reduction of output ripple voltage. The LTM4661 has three operation modes: Burst Mode operation, forced continuous mode and external sync mode. The quiescent current in Burst Mode operation is only 25µA, which provides extended battery run time. For applications demanding the lowest possible noise operation, the forced continuous mode or external sync mode minimise possible interference of switching noise.

The LTM4661 features an output disconnect during shutdown and inrush current limit at start-up. Fault protection features include short-circuit, overvoltage and over temperature protection. The LTM4661 operates from –40℃to 125℃operating temperature.

Using the 1.44″ Color TFT display (ILI9163C) with Arduino

ILI9163C 1.44″ TFT Display

Hi guys, over the past few tutorials, we have been discussing TFT displays, how to connect and use them in Arduino projects, especially the 1.8″ Colored TFT display. In a similar way, we will look at how to use the 1.44″ TFT Display (ILI9163C) with the Arduino.

The ILI9163C based 1.44″ colored TFT Display, is a SPI protocol based display with a resolution of 128 x 128 pixels. It’s capable of displaying up to 262,000 different colors. The module can be said to be a sibling to the 1.8″ TFT display, except for the fact that it is much faster and has a better, overall cost to performance ratio when compared with the 1.8″ TFT display. Some of the features of the display are listed below;

  • Size: 1.44 inch
  • Interface: SPI
  • Resolution: 128*128 pixel
  • Visual area: 1:1 square
  • TFT color screen, the effect is far better than other small CSTN screen
  • Drive IC: ILI9163
  • Fully compatible and alternative 5110 interface
  • Onboard LDO, support 5V/3.3V input voltage, the LED backlight, 3.3V input

For this tutorial, we will focus on demonstrating how to use this display with Arduino to display texts, shapes and Images.

Using the 1.44″ Color TFT display (ILI9163C) with Arduino – [Link]

Heart-rate monitor on a small OLED display with MicroPython

By Martin Fitzpatrick @ martinfitzpatrick.name show us how to build the micro display heart-rate monitor.

Pulse sensors have become popular due to their use in health-monitors like the Fitbit. The sensors used are cheap, simple and pretty reliable at getting a reasonable indication of heart rate in daily use. They work by sensing the change in light absorption or reflection by blood as it pulses through your arteries — a technique jauntily named photoplethysmography (PPG). The rising and falling light signal can be used to identify the pulse, and subsequently calculate heart rate.

Heart-rate monitor on a small OLED display with MicroPython – [Link]

SGPC3 – Air Quality Sensor for Battery-Driven Applications

Sensirion, the expert in environmental sensing, now offers the ultra-lower power gas sensor SGPC3. The SGPC3 makes indoor air quality sensing available for mobile and battery-driven applications. With an average supply current of less than 0.07 mA the SGPC3 is able to provide indoor air quality measurements with several years of battery lifetime. Based on Sensirion’s SGP multi-pixel platform the SGPC3 offers a complete gas sensor system integrated into a very small 2.45 x 2.45 x 0.9 mm3 DFN package featuring I2C interface and a fully calibrated and humidity-compensated air quality output signal

Sensirion’s MOXSens® Technology provides the SGPC3 with an unmatched robustness against contamination by siloxanes resulting in outstanding long-term stability and accuracy. The combination of ultra-low power consumption and long-term stability makes the SGPC3 the perfect choice for indoor air quality monitoring in mobile and battery-driven smart home applications. Evaluation and testing is supported by application notes and example code; the SGP evaluation kits are also available through Sensirion’s distribution network.

Visit Sensirion’s website to see where you can order the SGPC3 gas sensor or to learn more about its specifications and features: www.sensirion.com

Discover more about the most relevant environmental parameters and Sensirion’s other innovative environmental sensor solutions at www.sensirion.com/environmental-sensing

LED BLE Matrix Heart Display

8*16 LED matrix display with bluetooth low energy to connect to any smart phone. By Nitesh:

This LED matrix is a heart shaped circuit which you can make/buy(from me) and gift to your valentine or crush and spread your love. It can be worn as a necklace or as a badge. It has got BLE so you can display any text message on the necklace using a smart phone.

LED BLE Matrix Heart Display – [Link]

Harmonic Function Generator using ATtiny85

David Johnson-Davies published another great and detailed project based on ATtiny85. It’s an harmonic function generator with an OLED display.

This article describes a simple function generator based on an ATtiny85 which allows you to generate a virtually unlimited number of waveforms using additive harmonic synthesis, by specifying the amplitude of each of the waveform’s harmonics.

It includes a volume control, audio amplifier, and loudspeaker so you can hear the waveforms. It’s not only a useful waveform generator, but also a good introduction to the composition of musical notes.

Harmonic Function Generator using ATtiny85 – [Link]

Program-O-Tron – SD Card Based Standalone AVR Programmer

An SD card based standalone AVR Programmer is live on kickstarter and has 24 days to go.

Here at proto-pic HQ we make kits, lots of kits, and that means lots of AVR programming. We found this a tedious task and wanted a solution to make the whole thing quick and easy. No more did we want to have to use AVRDude or Arduino as ISP to program a few hundred ATtiny85s with a bootloader.

We looked around and found a few stand-alone programmers. Great. However they cost over £100 each and could only store one file which wasn’t so great.

Program-O-Tron – SD Card Based Standalone AVR Programmer – [Link]