Powering Freight & Transportation - Power Systems Design
Powering Freight & Transportation - Power Systems Design
Powering Freight & Transportation - Power Systems Design
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Ultra-Low <strong>Power</strong> LDOs<br />
150mA, 500nA I Q Regulators for MCU-Based Applications<br />
Applications<br />
– TI MSP430-based applications<br />
and other microcontrollers<br />
– <strong>Power</strong> rails with programming<br />
mode<br />
– Wireless handsets and other<br />
low-power, battery-powered<br />
products<br />
Features<br />
– Low I Q : 500nA (typ)<br />
– Available in fixed output<br />
voltages from 1.5V to 4.2V using<br />
innovative factory EPROM<br />
programming<br />
– Available in adjustable versions<br />
from 1.22V to 5.25V<br />
– V SET pin toggles output voltage<br />
between two factory-programmed<br />
voltage levels<br />
– Stable with a 1.0µF ceramic<br />
capacitor<br />
– Logic level compatible enable pin<br />
– Price: $0.65 (1k)<br />
<strong>Power</strong><br />
Management<br />
TPS780xx<br />
2mm x 2mm<br />
150mA<br />
High-Performance Analog >>Your Way and the platform bar are trademarks of Texas Instruments. 2252A1 © 2008TI<br />
GND<br />
High-Performance Analog>>Your Way<br />
V CC<br />
I/O<br />
Microcontroller<br />
GND<br />
TI’s TPS780xx LDOs with dual-level voltage output for low-power,<br />
battery-powered devices consume only 500nA of quiescent current.<br />
The LDOs implement dynamic voltage scaling (DVS), using a voltage<br />
select (V SET ) pin to allow switching between two voltage levels to<br />
customize and cut power consumption.<br />
Device<br />
VIN (V)<br />
IOUT (mA)<br />
VOUT (V)<br />
IQ (µA) Package<br />
Price<br />
(1k)*<br />
TPS780xx 2.2 - 5.5 150 1.22 - 5.25 500nA TSOT-23, SON $0.65<br />
TPS781xx 2.2 - 5.5 150 1.22 - 5.25 1 TSOT-23, SON $0.50<br />
TPS797xx 1.8 - 5.5 10 1.25 - 4.9 1.2 SC70 $0.34<br />
TPS715xx 2.5 - 24 50 1.2 - 15 3.2 SC70 $0.34<br />
TPS715Axx 2.5 - 24 80 1.2 - 15 3.2 SON $0.44<br />
* Suggested resale price in U.S. dollars in quantities of 1,000.<br />
Visit us at electronica Booth A4.420<br />
www.ti.com/tps780xx-e or call toll free:<br />
00800-ASKTEXAS (00800 275 83927)<br />
or international: +49 (0) 8161 80 2121<br />
Get Evaluation Modules, Samples and <strong>Power</strong> Management Selection Guide<br />
Dilbert – 72<br />
Viewpoint<br />
Engineering Rules – OK? ...........................................................................................................................................................................................4<br />
Industry News<br />
Digi-Key Corporation and Alpha & Omega Semiconductor Sign Global Distribution Agreement ............................................................................6<br />
Vicor Strengthens European Team ............................................................................................................................................................................6<br />
SolFocus Completes CPV Installation at ISFOC’s 3MW Solar <strong>Power</strong> Plant .............................................................................................................6<br />
General Manager Boosts Management Team at Gresham .......................................................................................................................................8<br />
High-Performance Two-Wheel Inverted Pendulum Robot via R&D Cooperation .....................................................................................................8<br />
LTi REEnergy Selects Maxwell Technology BOOSTCAP ® Ultracapacitors for Backup <strong>Power</strong> in Wind Turbines ....................................................10<br />
Microsemi Appoints Bel Lazar Senior VP of Operations .........................................................................................................................................12<br />
TTI Signs Pan-European Franchise Deal with C&K Components ...........................................................................................................................12<br />
Lineage <strong>Power</strong> Appoints Global VP of OEM Sales .................................................................................................................................................12<br />
<strong>Power</strong> Events.................................................................................................................................................................................................12<br />
Energy-Efficient Chokes for <strong>Transportation</strong> ............................................................................................................................................................14<br />
Optimized <strong>Power</strong> Processing and Energy Efficiency, By Oleg Khaykin, International Rectifier ..............................................................................16<br />
Portable <strong>Power</strong>-Management Market Throws the Switch, By Marijana Vukicevic, iSuppi .....................................................................................18<br />
<strong>Design</strong> Tips<br />
<strong>Power</strong> Supply Control <strong>Design</strong> Tools – Part VI, By Dr. Ray Ridley, Ridley Engineering ............................................................................................20<br />
On The Road<br />
Fairchild Semiconductor, Texas Instruments, Sharp Microelectronics, Linear Technology, Vicor/Picor, Reported by Cliff Keys, Editor-in-Chief, PSDE .....24<br />
Cover Story<br />
On The Right Track, By Michel Ghilardi & Marc Schaerrer, LEM SA .......................................................................................................................31<br />
Solar <strong>Power</strong><br />
Solar <strong>Power</strong> Shines! Part II, By Alfred Hesener, Fairchild Semiconductor ..............................................................................................................37<br />
Lighting<br />
Avoiding Current Spikes with LEDs, By Pat Goodman, Philips Lumileds ...............................................................................................................41<br />
Special Report: <strong><strong>Power</strong>ing</strong> <strong>Freight</strong> & <strong>Transportation</strong><br />
Transport and Automotive Appliances Benefit from Multiphase Boosters, By Bruce Haug & Tick Houk, Linear Technology ...............................46<br />
Electric Vehicle Battery Monitoring, By Warren Pettigrew, Raztec Sensors............................................................................................................52<br />
Circuit Protection for Safer Automotive Electrical Architectures, By Guillemette Paour, Tyco Electronics .............................................................55<br />
One Step Closer to the Birds, By Marco Panizza, Vicro Europe .............................................................................................................................58<br />
Progressing <strong>Freight</strong> and <strong>Transportation</strong>, By Sven Baechtiger, Maxwell Technologies............................................................................................61<br />
New Products.................................................................................................................................................................................................64<br />
Whichever Way the Wind Blows, Reported by Cliff Keys, Editor-in-Chief, PSDE ...................................................................................................72<br />
Member<br />
Arnold Alderman<br />
Heinz Rüedi<br />
Marion Limmer<br />
Dr. Reinhold Bayerer<br />
Dr. Leo Lorenz<br />
Davin Lee<br />
Eric Lidow<br />
Tony Armstrong<br />
Hans D. Huber<br />
<strong>Power</strong> <strong>Systems</strong> <strong>Design</strong> Europe Steering Committee Members<br />
Representing<br />
Anagenesis<br />
CT-Concept Technology<br />
Fairchild Semiconductor<br />
Infineon Technologies<br />
Infineon Technologies<br />
Intersil<br />
International Rectifier<br />
Linear Technology<br />
LEM<br />
Member<br />
Andrew Cowell<br />
Michele Sclocchi<br />
Kirk Schwiebert<br />
Christophe Basso<br />
Balu Balakrishnan<br />
Paul Greenland<br />
Uwe Mengelkamp<br />
Peter Sontheimer<br />
Representing<br />
Micrel<br />
National Semiconductor<br />
Ohmite<br />
On Semiconductor<br />
<strong>Power</strong> Integrations<br />
Semtech<br />
Texas Instruments<br />
Tyco Electronics
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