Product category:
Analogue and Mixed Signal ICs
News Release from: Linear Technology Corp | Subject: LTC2932
Edited by the Electronicstalk Editorial
Team on 12 May 2008
Monitor watches over six power supplies
Device is ideal for monitoring network servers, telecomms and industrial equipment with multiple supply voltage rails.
New from Linear Technology, the LTC2932 is a six-channel supply monitor that includes separate open-drain voltage comparator outputs for individual supply monitoring The LTC2932 is designed for monitoring network servers, telecomms and industrial equipment with numerous supply voltage rails
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
Related stories
Card power chip meets smart and SIM standards
The LTC4557 is a dual SIM/smart-card power supply and level translator, which provides both 1.8 and 3V SIM power and digital signal level shifting from a 3 x 3mm QFN package.
RF mixers take transformers onboard
Linear Technology has released two new high linearity up-converting RF active mixers with integrated RF transformers.
An external resistive divider between a bandgap reference output, an ADC input and ground determines which of the six channels are set to preset or adjustable voltage monitor inputs, as shown in the voltage threshold selection table below.
The preset voltage thresholds are digitally configurable for 5, 7.5, 10 or 12.5% supply tolerances below the nominal operating voltage.
The LTC2932 can also be configured to monitor up to four adjustable supplies, with the option for negative voltage monitoring by connecting a resistive divider between the negative supply and buffered reference instead of ground.
All six preset or adjustable channels feature +/-1.5% (maximum) threshold accuracy over the entire temperature range.
With guaranteed specifications across the -40 to +125C temperature range, the LTC2932 can be used in automotive and military applications.
The LTC2932's reset timeout period can be adjusted using an external capacitor and the reset output is guaranteed to be in the correct state for VCC as low as 1V.
The LTC2932 also includes a reset disable pin for margining applications.
The LTC2932 is being released alongside two new six-channel configurable supervisors.
The LTC2931 offers similar functionality and performance, while including a watchdog input, adjustable watchdog timer, and a fixed 5% monitor threshold.
The LTC2932 and LTC2931 are both offered in 20-pin TSSOP packages.
The LTC2930 includes a pushbutton manual reset input and uses only a single reset output for voltage monitoring, and is available in a tiny 3 x 3mm DFN-12 package.
All three six-channel supervisors draw only 52uA of supply current.
The LTC2930, LTC2931 and LTC2932 are available today in commercial, industrial, and automotive temperature grades, with 1000-piece pricing beginning at US $2.56 each. Request a free brochure from Linear Technology Corp ...
• Linear Technology Corp: 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
