Parts category

Export Eagle Libraries With SnapEDA

Although the new Eagle subscription model by Autodesk will bring much-needed features to the software, many users after the announcement had decided to move their work to other alternatives, such as KiCad, Altium, Cadence, etc.

One of the challenges was to convert the libraries made by Eagle to be compatible with other software programs. SnapEDA solved that by offering a new free tool that translates Eagle libraries to KiCad, Altium, OrCad and other formats.

SnapEDA is a parts library for circuit board design provides free symbols, footprints, and 3D models for millions of electronic components. The goal behind SnapEDA is to build one trusted, canonical source of electronics design content that everyone can benefit from.

To convert your Eagle library just upload your file here, then you can re-download it in any format through your uploaded models page. The video below demonstrates the converting process:

Currently, all the uploaded parts will be public on SnapEDA until the private version is released. All parts are clearly marked as user-generated content and attributed to the uploader, and can be deleted at any time.

“We are big fans of Eagle and the new changes they’re making, and are confident that the subscription model will bring much-needed features to the software. But we also understand that it is (for many) a showstopper. Hopefully this free tool is helpful to those for whom this is the case.” – SnapEDA

Try now this tool and convert your files here!

The new 800V CoolMOS MOSFET from Infineon

20160912142602_infineoncoolmos-p7

Thomas Scherer @ elektormagazine.com shares the news about a CoolMOS Mosfet from Infineon.

The latest 800V CoolMOS P7 800V MOSFET from Infineon is based on their superjunction technology. The device is available in twelve classes of RDS(on) beginning with  0.28 Ω and in six package options. It is particularly suited to high voltage switching applications, flyback applications including adapter and charger, LED lighting, audio SMPS, AUX and industrial power.

The new 800V CoolMOS MOSFET from Infineon – [Link]

FemtoFET – 20V 500mA 0.6×0.7mm MOSFET From TI

Texas Instruments “TI” recently announced  FemtoFET series.
There are N-channel MOSFETS like CSD15380F3 and P-channel MOSFETS like CSD25480F3 and CSD23280F3 in this series. These transistors are SMD (Surface Mount Devices) available in a very small package, the land grid array (LGA) package.

Traditional SOT-23 package next to the CSD18541F5 LGA package. Image Source: TI
Traditional SOT-23 package next to the CSD18541F5 LGA package. Image Source: TI

To explore this family we will highlight the FemotoFET MOSFET CSD15380F3. It has a 20V Vds, 990 mohm Rds @ Vgs=8, 500mA maximum Id, 0.5W power dissipation and ultra-small LGA Footprint 0.73 mm × 0.64 mm which make it suitable for many handheld and mobile applications.

Pin-out of CSD15380F3
Pin-out of CSD15380F3
LGA Package
LGA Package

The new MOSFET has Qg = 0.216 nC Ultra-low capacitance and that improves switching speeds in data line applications.

Table Source: Product Page
Table Source: Product Page

It’s available on Mouser for 0.47$ for 1 unit order and 0.05$ for 1,000 unit order and need 6 weeks lead time.
Via: TI E2E Community Blog

Arrow Certification Makes Your Next Product Crowd-funding On Indiegogo Easier

ArrowCertified_Large@3x

Arrow Electronics, the well known company specialized in distribution and services related to electronic components and computer products, and Indiegogo crowd-funding website announced the “Arrow Certification”.

ArrowCer

Crowd-funding a hardware product is something not so easy and complicated especially when we talk about manufacturing, supply chain management, packaging and warehousing. For this reason Arrow decided to help hardware entrepreneurs with this new certificate.

‘Arrow Certification” benefits are in a lot of aspects needed in your crowd-funding campaign like marketing and engineering.
Arrow engineers will evaluate and consult you especially in the fields Arrow are good at like Bill of Materials Optimization and Design for Manufacture. Arrow will help you in manufacturing, managing supply chain, packaging and warehousing.

“Arrow Certification” will allow you to access to a lot of Arrow engineering tools like:

  • 6 Free months access to SiliconExpert part search engine the largest electronic component database according to Arrow.
  • Access to Arrow Testdrive™ to try new tools from leading semiconductor manufacturers before you buy them free of charge for 21 days.

You will save money using this certification up to $1,000 for BOM (Bill of Materials) and 10% discount on Arrow.com beside free domestic ground shipping.

If your product successfully certified by Arrow, then your Indiegogo campaign page will receive an “Arrow Certified” badge and you’ll receive instructions to claim “Arrow Certified” special benefits. For more information about the Arrow Certification, read the following pages:

Go to Market with Confidence

Apply For Arrow Certification

About Arrow Certification

Press Release

ISL91128 – A New Buck-Boost Regulator With I2C Interface From Intersil

If your application requires a changing supply voltage, then this new IC is ideal for you. Intersil announced the ISL91128, a new buck-boost regulator. The new regulator has an I2C interface to select a broad set of features including output voltage range and slew rate. This eliminates the need of feedback resistors and allows the reuse of the same design for multiple output voltage needs.

The input voltage range is from 1.8V to 5.5V, and the output voltage range is from 1.9V to 5.5V with output current up to 2.2A. ISL91128 has 2.5MHz switching frequency. It is fully protected for short-circuit, over-temperature and undervoltage, according to the datasheet.

isl91128_applicationISL91128 is available in a small 2.15mm x 1.74mm WLCSP package.

intersil_bbIntersil provides ISL91128IIN-EVZ, an evaluation board for ISL91128. ISL91128 is part of ISL911xx family of buck-boost/boost regulators.

Key Differences in Family
Key Differences in Family

[Product Page]

[Datasheet]

Via: ElectronicsWeekly

ams AS1383 A 200mA, 3.5MHz DC-DC Boost Converter

If you have a single Li-Ion battery powered application, then you need to think about using AS1383 in your design.

AS1383 is a DC-DC boost converter comes in a 6-pin WL-CSP package with 0.4mm pitch, a very small package suits the limited space applications. In the below image, you can compare the WL-CSP package with the 0805 SMD capacitor to know how small it is.

AS1383 And 0805 Capacitors
AS1383 And 0805 Capacitors

AS1383 uses 3.5MHz switching frequency and this high frequency allows the usage of a low profile inductor with only 1μH.

The input voltage range is from 2.7V to 5.5V and The output voltage range is from 2.7V to 5.0V with 200mA output current. It has an enable input pin to reduce the supply current to < 1μA.

AS1383 is available in three options:

  • AS1383-BWLT-AD an adjustable Vout version.
  • AS1383-BWLT-45 a 4.5V fixed Vout.
  • AS1383-BWLT-50 a 5.0V fixed Vout.

The output voltage in the adjustable version can be selected with external resistor divider connected to the FB pin.

The AS1383 price is 0.25$ for 1K order. Also, an evaluation Kit for AS1383 is available for 49$.

I obtained the schematic and the BOM from the evaluation kit manual.

Evaluation Kit for AS1383
Evaluation Kit for AS1383

 

The Schematic of The Evaluation Kit for AS1383
The Schematic of The Evaluation Kit for AS1383

 

The BOM of The Evaluation Kit
The BOM of The Evaluation Kit

Data sheet

Product page

Via: Mouser

Bq501210 the Wireless Power Transmitter from TI

Texas Instruments (TI) announced the Qi-Certified Wireless Power (WPC) v1.2 solution for 15-W operation wireless power transmission for Smart Phones, Tablets, and Other Handheld devices, Point-of-Sale devices and other custom wireless power applications.

Bq501210 supports Bi-directional Communication and fast charge operation with compatible receivers. The user is informed for the state of charge by 10 configurable LED codes that indicate also fault status.

If you’re not familiar with the term of wireless power transmission then let’s see how TI describes it in the datasheet. It basically consists of a transmitter and receiver coils. When the receiver coil is positioned on the transmitter coil with some distance (wireless), magnetic coupling occurs when the transmitter coil is driven. The flux is coupled into the secondary coil, which induces a voltage and current flows. The secondary voltage is rectified, and power can be transferred effectively to a load.

According to the datasheet, bq501210 supports multiple levels of protection against heating metal objects placed in the magnetic field.

bq501210_BD

TI provides an evaluation module bq501210EVM-756 costs 150$ with the following features:

  • WPC v1.2 15-W charging capability with bq55221 receiver.
  • 5-W solution for WPC v1.1 receivers.
  • 15-V to 19-V input and fixed operatiing frequency for full 15-W results.
  • 12-V input for reduced power (> 10W) solutions.
  • Enchanced Foreign Object Detection (FOD) with FOD ping detecting objects prior to power transfer.
  • WPC v1.2 FOD, WPC v1.1 FOD and WPC v1.0 Parasitic metal Object Detection (PMOD).
  • Transmitter-coil mounting pad providing the corect ereceiver interface.
  • Compact power section design using the bq500100 NexFET power stage.
  • Wurth 760 308 141 transmitter coil with no magnet.
  • LED and audio indication of power transfer.

bq501210evm-756

Bq501210 is available in 9*9mm 64-VQFN package and is priced at US$3.75 in 1,000-unit quantities.

Via: eeweb

Thunderboard React – A New BT 4.2 IoT Kit From Silicon Labs

Silicon Labs recently introduced a new platform that enables users to develop their own sensor driven IoT application, this platform is called Thunderboard React and it’s for 29$.

Thunder_img

Thunderboard contains Silicon Labs’ BGM111 bluetooth smart module connected with punch of sensors which are: Silicon Labs’  Si7021  relative humidity and temperature sensor, Silicon Labs’ Si1133 ambient light and UV sensor, Silicon Labs’ Si7201 omni-polar, hall-effect sensor and Invensense’s MPU-6500 6-axis motion sensor.

Thunder_dig

Silicon Labs also provides a mobile app for Android implanted in native code, and an iOS app implemented in Swift. The app streams sensors’ data to the cloud.

Thunder_app

Firmware can be developed using Simplicity Studio v3 and C-SDK software stack from Silicon Labs.

[Product Page]
[ThunderBoard-React User’s Guide]

RTL8710 Is a New ESP8266 Competitor

RTL8710

In the last two years, ESP8266 was the Wifi Chip/Module which dominated the market of hobbyists, even a lot of commercial products use ESP8266, due to the low price, ease of use and large community around ESP8266.

RTL8710 is a Wifi network solution from the Taiwanese Company Realtek. It can operate independently, or as a slave to another MCU host. The same way of ESP8266.
RTL8710 has a built-in ARM Cortex M3 MCU at 166 MHz, 1MB flash and peripherals like UART, PWM, I2C, GPIO and PCM, a more detailed comparison is shown in the  table bellow:

Table courtesy of cnx-software
Table courtesy of cnx-software

If you like to have a quick hands on RTL8710, then you can order a development board for RTL8710.

RTL8710DK

Via: cnx-software

They’re ‘Not’ JUST Capacitors

James Lewis from Kemet has made a presentation to address some of misconceptions about capacitors like how you should de-rate capacitors.
James said that de-rating depends on the chemistry and configuration of a particularly capacitor.  So he started by asking a question: Should capacitors be de-rated 50%? And the answer was not a simple true or false. It was: it depends…

James talked about the typical construction of Multilayer Ceramic Capacitor(MLCC), Aluminum Electrolytic(wet one), Tantalum, Polymer Electrolytic and Supercapacitors.

James talked about the Temperature Coefficients diagram for various types of Ceramic Capacitor like: YV, Z5U, X5R, X7R, U2J and C0G [Ceramic Capacitor].

Temperature Coefficients diagramWe can see that MLCC capacitance ranges, and Coefficients depend on type.

Another key point was about capacitance change vs DC bias in MLCC. It’s about the role of package size in capacitance lose over DC bias. He compared 10nf and 6.3v rated 1206 package capacitor with same one in 0805 package. Results showed that the 1206 one lost 2% of capacity, while the 0805 lost 50% at 6V. James said that the 0805 package is thinner than the 1206 one, so we need to put more layers into the design to get more capacity. So thinner package leads to worse coefficients.

He pointed out that the capacitance of Wet Aluminum Capacitors is affected on shelves, and he explained how to reform/self-heal them.

James also explained why it’s safer to use Polymer Electrolytic rather than using Tantalum Capacitors, and why Polymer Electrolytic when fails, it fails safely.

TantalumsHe ended his presentation up by talking about Supercapacitors, and he made a walkthrough the tools Kemet provides:
KEMET Catalog App for Mobile Devices
Capacitor Simulator K-SIM 
KEMET Engineering Center (capacitor technical content)

[Presentation Slides]