.gif)
.gif)
Industry News
July 22, 2011
Portable Power Management at Techno Frontier
Exclusive
A variety of products and technologies targeted at power management in portable devices were on display at Techno Frontier. Toko, Fujitsu Semiconductor and Toshiba Semiconductor were a few of the companies targeting portable applications. Toko demonstrated wireless charging modules, Fujitsu announced two new dc-dc converters and Toshiba expanded its offering of MOSFETs.
The Toko booth featured a demonstration of wireless inductive charging technology. Wireless inductive charging is a relatively new category for portable power management and Toko announced cumulative shipment of over 15 million units of its wireless power transmission module. Toko also announced a new generation of modules with higher-voltage and higher-current capabilities. The new modules can deliver up to 800mA at up to 12Vdc, with an overall power limitation of 4W.
The previous-generation modules operate over an input voltage range of 10.8-13.2Vdc and produce an output voltage greater than 3Vdc, generating a current of 75mA across a gap of 4mm. While the previous-generation modules are designed for trickle charging various battery-powered devices, the newest modules are capable of much higher charge rates.
Fujitsu was demonstrating dc-dc converters optimized for specific portable power applications. The MB392A02A is a 2-channel dc-dc buck converter IC with synchronous rectification and two built-in LDOs Designed to operate over a voltage range of 5.5-28Vdc, this device is offered in a QFN28 package. With an adjustable frequency of 100-600kHz, the outputs can deliver 50mA at 3.3Vdc and 100mA at 5Vdc.
In addition, Fujitsu announced the MB39C326 6MHz, buck-boost dc-dc converter optimized for powering the RF amplifier in mobile devices powered by a single Li-ion cell. These devices can provide output voltages from 0.4-4.5Vdc and operate over an input voltage range of 2.5-4.8Vdc. The output voltage is set with an external resistor. The device operates with a 0.5 uH inductor and is offered in a 20-pin plastic WLP package.
Opinion: Unraveling the Ultra-Low Power Design Issues
Toshiba Semiconductor announced the addition of the SSM6P47NU and SSM6P49NU to its lineup of small signal MOSFETs. Targeted at use in charging circuits for mobile devices, these dual P-channel MOSFETs feature lower on-resistance compared with previous-generation devices.
Toshiba’s SSM6P47NU and SSM6P49NU address the demand for compactness by combining two independent transistors into a UDFN6 package (2.0 x 2.0mm). A 1.8Vdc drive, combined with a 4A drain current allow the SSM6P47NU and SSM6P49NU to run at a high rate of efficiency, enabling batteries to be fully charged in less time. In addition to being used charging circuits the new devices are capable of acting as a switch to control which loads are connected or disconnected from the circuit.
Share this story
Send via E-mail
Post to Twitter
On the Web:
Fujitsu Semiconductor America, Inc.
Techno Frontier Week
Toko Inc.
Toshiba Semiconductor
White Papers
March 11, 2013
Power Modules for Charger Applications
Sponsored by Vincotech
February 27, 2013
The Adaptive Cell Converter Topology Enables Constant Efficiency Over Universal Input AC Line in Front-End, High-Density Power Factor Correction Applications
Sponsored by Vicor Corp.
February 27, 2013
From 48 V direct to Intel VR12.0: Saving "Big Data" $500,000 per datacenter, per year
Sponsored by Vicor Corp.
More White Papers
- Altera Acquires Enpirion for $140 Million, Forms Power Business Unit
- Ericsson Saves Board Space with Surface-Mount Digital Bus Converter
- SiC Modules, IGBTs and Super-Junction MOSFETs Introduced on Day One of PCIM
- SiC and GaN Again a Major Focus at PCIM Europe
- PowerbyProxi Joins Wireless Power Consortium
- Vincotech and Infineon Introduce New Packaging Options at PCIM Europe
- Bosch Claims First Sub-$450 240V EV Charging Station
- Eaton and CA Technologies Join to Deliver Infrastructure Management for Data Centers
- DOE Selects Consortium to Develop Next-Generation Batteries for Automobiles
- Dana Receives Grant from NRCan to Improve Thermal Management for EV Battery Packs
- Renesas Adds IGBT Drivers with Micro-Isolator for Electric and Hybrid Vehicle Inverters
- European Project Reports Achievements in Drive to Shape the Future of Power Microelectronics
- Bosch Claims First Sub-$450 240V EV Charging Station
- Vicor Reports Reduced Q1 Results – Anticipates a Brighter Future
- GE Opens $1.5 Million New Product Introduction Accelerator Lab
- Alpha and Omega Delivers "Lowest" On-Resistance in a DFN5x6 with 150V Power MOSFET
- ROHM Claims New Hybrid MOS Combines the Best Characteristics of MOSFETs and IGBTs
- SL Packs 60 Watts of Industrial-Grade AC-DC Power in Small and Robust Package
- 500W Full-Brick DC-DC Converter Optimized for Fuel Cell Applications
- Altera Acquires Enpirion for $140 Million, Forms Power Business Unit
- Green Building Power Forum 2010: Fujitsu Components America
- Darnell's Digital Power Forum 2009: CUI Incorporated
- Green Building Power Forum 2010: EMerge Alliance
- Green Building Power Forum 2010: Anderson Power Products
- Green Building Power Forum 2009: Independence Station
- Darnell's Digital Power Forum 2009: Coilcraft
- Darnell's Digital Power Forum 2009: Champs Technologies
- Darnell's Digital Power Forum 2009: EXAR Corporation
- Darnell's Digital Power Forum 2009: PMBus
- Darnell's Digital Power Forum 2009: Power Plaza
Design Features
October 22, 2012
Energy Efficiency with Class D Amplifier Modules
Class-D switching amplifiers are helping audio designers create personal multimedia devices and home audio/visual systems that demonstrate how compact and stylish equipment can also deliver high sound quality and high audio output power. The key to this breakthrough, providing freedom from the large and bulky boxes housing traditional audio products, lies in the class-D amplifier’s high energy efficiency, which is typically around 90%. This allows designers to reduce or eliminate heatsinks as well as using smaller-sized PCBs and smaller components such as transformers, connectors and power supplies.
Design Features
October 8, 2012
The Role of Hall Effect Sensors in Power Distribution Infrastructure
Power distribution units (PDUs) form an essential part of modern computing and data communications hardware. They provide multiple outputs for transferring electrical power with maximum efficiency, controlling the power capacity and safeguarding against the possible causes of supply interruption. With an ever increasing need from tech savvy consumers for higher data throughput and greater quantities of data storage capacity, as well as tough international legislation now governing CO&sub2; emissions, the demands being placed on these units are proving challenging for engineering teams to satisfy.
Product Focus
August 13, 2012
The Year in AC-DC Power Supply Technology
The past year witnessed significant new product releases, technological developments, and industry news related to the field of AC-DC Power Supply technology.