.gif)
.gif)
New Products
October 26, 2012
Touchstone Expands Its Low-Power Current-Sense Amplifier Portfolio
Touchstone Semiconductor, Inc. announced two new members of its 1µA current-sense amplifier portfolio -- the unidirectional TS1102 and the bidirectional TS1103. Starting at $0.61 each in 1,000-piece quantities, these new current-sense amplifiers combine a very low 1µA supply current, a 200-µV (max) VOS, and very low (0.5% (max) gain error for TS1102 and 0.6% (max) gain error for the TS1103 for cost-sensitive applications. Both CSAs offer a wide input common-mode voltage range from 2V to 25V and each is available in four gain options: 25V/V, 50V/V, 100V/V and 200V/V.
The low input offset voltage performance exhibited by these two new CSAs enables design engineers to achieve improved accuracy and reduced current-sense resistor expense without increasing the power consumption. This makes them suitable for portable applications where form factor and cost are important. Touchstone's current-sense amplifiers are the only ICs in the market that shatter the offset/power/price performance ceiling.
The TS1102 is form-factor identical to Maxim's MAX9938 and the MAX9634 CSAs. Its 200-µV (max) VOS is 60% lower than the MAX9938's input VOS and 20% lower than the MAX9634's input VOS. It is also pin-for-pin to the industry-standard, 100-µV (max) VOS TS1100.
Related: Avnet Launches Power Solutions Video Series
The TS1103 IC is a symmetrical, high-side current-sense amplifier and pin-for-pin to Touchstone's industry-standard 100-µV (max) VOS TS1101 announced in March of this year. The TS1103's symmetrical architecture eliminates the load current "dead band" when switching from measuring battery discharge to measuring battery charge. This significantly simplifies customer designs while reducing power, saving board space and improving system accuracy. The TS1103 is self-powered and provides a SIGN comparator digital output that indicates the current flow direction.
The combination of a small form factor (SOT23-5 for the TS1102 and SOT23-6 for the TS1103), low supply current operation and variety of fixed gain options make these an ideal choice for low current, high-side current-sensing amplification. This includes applications such as battery-powered and portable devices, including mobile phones, notebook computers, power management systems, motor control, load protection, current-shunt measurement and smart battery packs and chargers.
Opinion: Maximising Synergies between Power Electronics and ICT for improving Energy Efficiency
Pricing starts at $0.61/each for the TS1102 and $0.84/each for the TS1103 in 1,000 piece quantities. The TS1102 and TS1103 are fully specified over the extended temperature range of -40° to +105°C.
Share this story
Send via E-mail
Post to Twitter
On the Web:
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
- DOE Selects Consortium to Develop Next-Generation Batteries for Automobiles
- Dana Receives Grant from NRCan to Improve Thermal Management for EV Battery Packs
- Eaton and CA Technologies Join to Deliver Infrastructure Management for Data Centers
- Power-One Gets $1 Billion – ABB Gets Inverters
- 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
- Alpha and Omega Delivers "Lowest" On-Resistance in a DFN5x6 with 150V Power MOSFET
- Eltek Signs Agreement with Caterpillar on Telecom Hybrid Systems
- Altera Acquires Enpirion for $140 Million, Forms Power Business Unit
- LED Lighting Power & Dimming Controls Introduced by Phihong
- SL Packs 60 Watts of Industrial-Grade AC-DC Power in Small and Robust Package
- Eltek's New Rectifier Delivers 97.2% Efficiency for Data Center and Server Powering
- 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.