2009年12月16日星期三

xmedia - Configurable Six-Channel Supervisor Includes Individual Comparator Outputs & Selectable Supply Tolerances

Configurable Six Supply Monitor Features Selectable Supply TolerancesStore this angel in big sizeMILPITAS, CA – February 13, 2008 – Linear Technology Corporation introduces the LTC2932, a six-channel accumulation adviser that includes abstracted open-drain voltage comparator outputs for alone accumulation monitoring. The LTC2932 is advised for ecology arrangement servers, telecom and automated accessories with abundant accumulation voltage rails. An alien arresting affiliate amid a bandgap advertence output, an ADC input, and arena determines which of the six channels are set to preset or adjustable voltage adviser inputs, as apparent in the voltage beginning alternative table below. The preset voltage thresholds are digitally configurable for 5%, 7.5%, 10% or 12.5% accumulation tolerances below the nominal operating voltage. The LTC2932 can aswell be configured to adviser up to four adjustable supplies, with the advantage for abrogating voltage ecology by abutting a arresting affiliate amid the abrogating accumulation and buffered advertence instead of ground. All six preset or adjustable channels affection +/-1.5% (max) beginning accurateness over the absolute temperature range. With affirmed blueprint above the -40°C to +125°C temperature range, the LTC2932 can be acclimated in automotive and aggressive applications. The LTC2932’s displace abeyance aeon can be adapted application an alien capacitor and the displace achievement is affirmed to be in the actual accompaniment for VCC as low as 1V. The LTC2932 aswell includes a displace attenuate pin for margining applications. The LTC2932 is absolution alongside two new six-channel configurable supervisors. The LTC2931 offers agnate functionality and performance, while including a babysitter input, adjustable babysitter timer, and a anchored 5% adviser threshold. The LTC2932 and LTC2931 are both offered in 20-pin TSSOP packages. The LTC2930 includes a push-button chiral displace ascribe and uses alone a individual displace achievement for voltage monitoring, and is accessible in a tiny 3mm x 3mm DFN-12 package. All three six-channel admiral draw alone 52uA of accumulation current. The LTC2930, LTC2931, and LTC2932 are accessible today in commercial, industrial, and automotive temperature grades..

Summary of Features: LTC2930/LTC2931/LTC2932

•Simultaneously Monitors Six Supplies
•16 Selectable Combinations of 5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V and +/-ADJ Thresholds
•Guaranteed Threshold Accuracy: ±1.5%
•Selectable Supply Tolerances: 5%, 7.5%, 10%, 12.5% (LTC2932)
•Reset Disable for Margining Applications (LTC2932)
•Watchdog Input and Output, Adjustable Watchdog Timeout (LTC2931)
•Buffered Reference Output for Adjustable, Negative Monitoring
•Low Quiescent Current: 52uA
•Guaranteed Operation to 125˚C
•Adjustable Reset Timeout Period
•Tiny 3mm x 3mm DFN-12 Package (LTC2930)
•Small TSSOP-20 Packages (LTC2931, LTC2932)

John Hamburger, Director Marketing Communications
jhamburger@linear.com
Tel: 408-432-1900 ext 2419

Doug Dickinson, Media Relations Manager
ddickinson@linear.com
Tel: 408-432-1900 ext 2233

About Linear Technology
Linear Technology Corporation, a architect of top achievement beeline chip circuits, was founded in 1981, became a accessible aggregation in 1986 and abutting the S&P 500 basis of above accessible companies in 2000. Linear Technology articles cover top achievement amplifiers, comparators, voltage references, caked filters, beeline regulators, DC-DC converters, array chargers, abstracts converters, communications interface circuits, RF arresting conditioning circuits, uModule™ products, and abounding added analog functions. Applications for Linear Technology’s top achievement circuits cover telecommunications, cellular telephones, networking articles such as optical switches, anthology and desktop computers, computer peripherals, video/multimedia, automated instrumentation, aegis ecology devices, high-end chump articles such as agenda cameras and MP3 players, circuitous medical devices, automotive electronics, branch automation, action control, and aggressive and amplitude systems. For added information, appointment www.linear.com.

LT, LTC, LTM and are registered trademarks and uModule is a brand of Linear Technology Corp.

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