Product category: Power Supply ICs and Controllers
News Release from: iC-Haus | Subject: IC-WD
Edited by the Electronicstalk Editorial Team on 17 August 2005
Convertor chip steps
down from 24V supplies
The iC-WD step-down DC/DC convertor is now available with both 3.3 and 5V outputs
By combining a switching convertor with two independent series regulators, stabilised 5 or 3.3V voltages with low power dissipation and low residual ripple can be obtained. The two linear regulator outputs are current-limited and provide 200mA (VCC) or 25mA (VCCA). The iC-WDL is available with three different output voltage combinations (VCC/VCCA): iC-WDA has 3.3/3.3V, iC-WDB 3.3/5V and iC-WDC 5/3.3V.
Related stories
Quad op amp boasts precision specifications
Quad high-performance op amp is ideal for signal conditioning and amplification, particularly in sensor applications with extremely high gain
Magnets provide robust encoder
iC-Haus' iC-MH is a system-on-chip solution for magnetic sensor applications with very small space requirements
The current-regulated down convertor with an internal 100kHz oscillator operates at voltages of between 8 and 36V and requires only a minimum of extra circuitry, namely an inductor, a backup capacitor and a current-adjusting resistor.
The choice of components enables the level of efficiency to be adjusted to suit the particular application in question; values of 100uH, 4.7uF and 1W are typical.
This permits components to be used which are both small and economical.
Further reading
Sine-to-digital convertor interpolates signals
The iC-TW2 encoder device does not need any other external components, besides the sensor
The circuit monitors the chip temperature and the output voltages and signals any errors at an open-collector output.
In order to reduce power dissipation the convertor is shut down in the event of excessive temperature.
The ICs are available as DFN10 package, measuring just 4 x 4mm, and come with a demo board for sampling.
The DFN10 package has a thermal pad on its underside for improved heat dissipation.
This allows the device to be used with higher ambient temperatures.
Use of the chip in series is aimed at sensor applications, such as encoders, linear scales and light barriers, in 24V control and automation systems.
• iC-Haus: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Related Business News
Applications/Solutions
High-performance analog ICs provide efficient, compact and dependable solutions for engine management systems, body electronics and comfort systems.
Taiwan Shares Climb 0.9 Percent
Taiwan shares rose on Thursday as investors were cheered by U.S. stock gains overnight. The Weighted Price Index of the Taiwan Stock Exchange rose 49.39 points, or 0.9 percent, to close at 8061.28.
Acxiom Agrees to Be Acquired by...
...Silver Lake and ValueAct Capital for $3.0 Billion. Acxiom Corporation announced today that it has entered into a definitive agreement to be acquired by Silver Lake, the leading investment firm focused on large-scale investments in technology-driven growth industries, and ValueAct
Opnext Reports Fourth Quarter and Full Year Operating Results
Opnext, Inc. , a global leader in the design and manufacturing of optical modules and components, today announced preliminary and unaudited financial results for the fourth quarter and full year ended March 31, 2007.
Vista Partners Updates Coverage on TXP...
...Corporation; Maintains $0.80 Price Target. Vista Partners announced today that it has update coverage on TXP Corporation . Vista Partners provides equity research to institutional and individual investors, with a focus on publicly traded small capitalization companies.
Search the Pro-Talk network of sites
