Parts category

Module provides BLE connectivity between tablets and cloud

by Alice Matthews@ electronicspecifier.com discuss about MBN52832 a BLE module:

A Nordic-based BLE module has been released by Murata. The latest MBN52832 device consists of Nordic Semiconductor’s nRF52832 IC, a 32MHz crystal for timing, and an on-board antenna. Additionally, it contains pins for an off-board omni-directional antenna and a NFC antenna. The module provides a Serial Port Interface (SPI) and UART interface to Nordic’s nRF52832 ARM Cortex M4 processor.

Module provides BLE connectivity between tablets and cloud – [Link]

Solid-state battery – a hybrid of battery and capacitor

With CeraCharge, TDK has developed the world’s first solid-state battery in SMD technology. In contrast to most common battery technologies, CeraCharge works without any liquid electrolytes. by Christoph Hammerschmidt @ eenewseurope.com:

Similar to ceramic capacitors, the CeraCharge is based on multilayer technology and combines a high energy density in the smallest possible space with process reliability in the manufacture of multilayer components. The use of a ceramic solid as electrolyte also excludes the risk of fire, explosion or leakage of electrolyte fluid.

In the compact size EIA 1812, the battery, which can be rechargeable several dozen to 1000 times, offers a capacity of 100 µAh at a nominal voltage of 1.4 V depending on the requirements. In the short term, currents in the range of a few mA can also be drawn.

Characteristics and applications of fast recovery epitaxial diodes

Read about epitaxial ultrafast diodes in thia app note from IXYS. (PDF)

During the last 10 years, power supply topology has undergone a basic change. Power supplies of all kinds are now constructed so that heavy and bulky 50/60 Hz mains transformers are no longer necessary. These transformers represented the major part of volume and weight of a traditional power supply.

Characteristics and applications of fast recovery epitaxial diodes – [Link]

Details of Waveshare e-paper displays

Erich Styger has a nice write-up on Waveshare e-paper displays:

I have used E-Ink displays in projects three years ago, but from that time the technology has greatly evolved. That time displays were hard to get, expensive and difficult to use. Now things seem to change with e-ink displays available to the maker market :-). I’m able to get a 128×296 pixel e-paper display for $10! And for little more money I can have displays with black/white/red colors!

Details of Waveshare e-paper displays – [Link]

FastCAP Launches a Chip Ultracapacitor

FastCAP Systems has launched its latest product – a board mountable chip ultracapacitor. This new product offering is the first low ESR, thin-profile, reflowable ultracapacitor on the market and is now available for purchase in FastCAP’s online store.

This chip ultracap has the highest energy density of any board-mountable ultracapacitor. The sealed ceramic package is pick and place compatible, RoHS compliant and Pb-free reflow compliant.

The supercapacitor provides maintenance free storage in a small form factor, perfect for thin devices that require reliability and long lifetime at high temperatures (up to +85°C). This new technology is well suited for applications such as power loss protection for solid state drives, power buffering for lithium-ion batteries, and auxiliary power supplies for peak and pulsed power, wireless sensors, and energy harvesting.

Bosch BME280 sensor combines pressure, humidity and temperature measurement

Bosch Sensortec announces a world first in sensor technology: the BME280 Integrated Environmental Unit combines sensors for pressure, humidity and temperature in a single package. This unique sensor has been developed to support a broad range of emerging high performance applications such as indoor navigation, home automation control, personalized weather stations and innovative sport and fitness applications. The precise altitude measurement function of the BME280 is a key requirement in applications such as indoor navigation with floor tracking where exceptional accuracy, low temperature drift and high resolution are needed. Additionally, the BME280 has a best-in-class response time of just one second for humidity determination, excellent ambient temperature measurement and low energy consumption.

More precise measurement at lowest power consumption

With a small footprint of just 2.5 x 2.5 mm2and a height of 0.93 mm in a space-saving 8-pin LGA package, the sensor offers high design flexibility and is ideally suited for mobile devices with limited space such as smartphones, tablets, smart watches and electronic wristbands. Very low current consumption of only 3.6 µA (at 1 Hz) makes the BME280 Integrated Environmental Unit particularly suitable for battery-driven applications. Three power modes and separately configurable oversampling rates for pressure and temperature measurements allow designers to adapt the BME280 to a wide range of use cases.

The humidity sensor within the Integrated Environmental Unit measures relative humidity (0% to 100%) across a wide temperature range from -40°C to +85°C with a fast response time of less than 1 second. The humidity measurement accuracy is ±3% with a hysteresis of 2% or better, and the temperature reading accuracy is within 0.5°C.

more details on the Bosch Press Release.

Microchip SST26WF064C Flash Memory Chip

SST26WF064C – Low-voltage 64-Megabit SuperFlash® Memory Device From Microchip

Microchip introduced a new 64Mbit Serial Quad I/O memory device—SST26WF064C with proprietary SuperFlash® technology. The SST26WF064C writes with a single power supply of 1.65-1.95V and significantly lower power consumption. This makes it ideal for wireless, mobile, and battery-powered applications.

Microchip SST26WF064C Flash Memory Chip
Microchip SST26WF064C Flash Memory Chip

This 64Mbit memory device also features DTR or Dual Transfer Rate technology. DTR lets the user access data of the chip on both rising and falling edges of the clock, reducing overall data access time and power consumption significantly. The SST26WF064C utilizes a 4-bit multiplexed I/O serial interface to boost performance while maintaining the tiny form factor of standard serial flash devices.

Microchip’s high-performance CMOS SuperFlash technology provides the fastest chip erase time, consequently, reduces overall power consumption. It also improves performance and reliability of the memory chip. The SST26WF064C’s typical chip-erase time is 35-50 milliseconds, where other chips take nearly 30 seconds to be completely erased.

This chip combines a hardware controlled RESET function which is not present in common flash chips available in the market due to their limited pin count. In SST26WF064C, the user can program the HOLD pin to use for the RESET function. This feature lets the host microcontroller to reset the chip by sending a pulse to it.

SST26WF064C supports full command-set compatibility with traditional Serial Peripheral Interface (SPI) protocol. Operating at frequencies reaching 104 MHz, the SST26WF064C enables minimum latency execute-in-place (XIP) capability without the need for code shadowing on a SRAM. To learn about code shadowing, read this article.

The key features of the SST26WF064C are:

  • Single Voltage Read and Write Operations – 1.65-1.95V
  • Serial Interface Architecture
  • High-Speed Clock Frequency (104 MHz max.)
  • Burst Modes
  • Superior Reliability
  • Low Power Consumption
  • Fast Erase Time
  • Flexible Erase Capability
  • Suspend Program or Erase operation to access another block/sector
  • Software and Hardware Reset mode
  • Software Protection
  • Security ID
  • One-Time Programmable (OTP) 2KByte Secure ID
  • 64 bit unique, factory pre-programmed identifier
  • User-programmable area

To learn more about this memory chip or to purchase some, visit http://www.microchip.com/wwwproducts/en/SST26WF064C.

Electrolytic + polymer = the hybrid capacitor

Electrolytic capacitor is often a common reason for device failure and replacement is necessary. But what if we could combine the benefits of electrolytics and polymer capacitors. Now you can have the best of both worlds: hybrid capacitors from have been designed to combine the advantages of electrolytic capacitors with those of solid polymer capacitors.

The supplier claims the use of hybrid technology offers low leakage current and long life in combination with low ESR (20 mΩ) in miniature case sizes. The EEH-ZE series (Type V-ZE) hybrid components offer a nominal capacitance range of 33 µF up to 330 µF, at voltage ranges from 25 VDC up to 63 VDC, and feature an operating temperature range of -55°C up to 145°C, as well low ESR and high ripple current. So think about using a hybrid capacitor in your next power converter input/output filter, voltage regulator, or clock circuit.

Electrolytic + polymer = the hybrid capacitor – [Link]

Coilcraft.com – Power inductor selection tool adds performance data

By Graham Prophet@ edn-europe.com:

Coilcraft has written a Power Inductor Selection Tool that allows users to easily select the appropriate path for their particular search while also providing more application-specific performance data than previously available.

Coilcraft.com – Power inductor selection tool adds performance data – [Link]

GaN FETs step up performance, cut package footprint

by Graham Prophet @ edn-europe.com:

Representing a step forward in performance and cost, the latest eGaN (gallium nitride) power FETs from Efficient Power Conversion (EPC), EPC2045 and EPC2047, are half the size of prior generation eGaN transistors with significantly higher performance.

GaN FETs step up performance, cut package footprint – [Link]