Product category:
Analogue and Mixed Signal ICs
News Release from: Zetex | Subject: ZXCT1030
Edited by the Electronicstalk Editorial
Team on 11 June 2004
Current monitor enhances power control
Helping to improve current sensing accuracy, increase efficiency and reduce PCB size, the highly integrated ZXCT1030 features an internal reference and comparator with a nonlatching output.
Helping to improve current sensing accuracy, increase efficiency and reduce PCB size, the highly integrated ZXCT1030 features an internal reference and comparator with a nonlatching output A high-side current-monitoring device, the MSOP8 packaged ZXCT1030 converts the voltage created across a sense resistor into a 1% accurate proportional output voltage and avoids adding any resistance in the ground plane - the cause of offset and the loss of true-ground reference
This article was originally published on Electronicstalk on 25 Mar 2004 at 8.00am (UK)
Related stories
Controller and monitor to debut at PCIM Europe
Zetex is to launch two new products at this year's PCIM Europe: the ZXBM1004 is a single-phase brushless motor controller and the ZXCT1030 is a highly integrated high-side current monitor.
Power devices qualify for automotive duties
Monitors, regulators and references meet the requirements of AEC-Q100 Grade 1 for operation in automotive environments at temperatures up to 125C.
Rectifier controller makes MOSFETs behave
Zero point detector driver allows designers to replace lossy Schottky diodes with surface mount MOSFETs for improved efficiency in power supply designs.
The ZXCT1030's fixed gain of 10 permits the use of lower value sense resistors which result in a lower voltage drop across the measurement network, of benefit to high current systems.
Added functionality is provided by the device's built-in reference and comparator.
An external variable resistance sets a user definable threshold for the comparator, which generates an output signal once the monitor output has reached the threshold.
The signal can then be used by an external microcontroller.
Easy to use, with a minimal external component count and supporting input voltages from 2.5 to 20V, the ZXCT1030 will certainly serve a wide range of applications that includes battery chargers, smart battery packs and DC motor controllers.
And with an operating bandwidth of 6MHz the current monitor will also handle switch mode power supply duties, while its typical quiescent current rating of 270uA will make it attractive to a wealth of portable product designs.
The price of the ZXCT1030 through distributors is $0.68 in quantities of 10,000.
• Zetex: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
