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ADM1818-R23AKS-RL Datenblatt(PDF) 1 Page - Analog Devices |
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ADM1818-R23AKS-RL Datenblatt(HTML) 1 Page - Analog Devices |
1 / 16 page Microprocessor Reset Circuits ADM1810 to ADM1813/ADM1815 to ADM1818 Rev. E Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©1999–2008 Analog Devices, Inc. All rights reserved. FEATURES Reliable low cost voltage monitor with reset output Suitable for monitoring 2.5 V, 3 V, 3.3 V, and 5 V power supply voltages Reset threshold levels: 4.62 V, 4.35 V, 3.06 V, 2.88 V, 2.55 V, 2.31 V, and 2.18 V typical Active high and low push-pull output choices: ADM1810, ADM1812, ADM1815, and ADM1817 Open-drain output choices: ADM1811, ADM1813, ADM1816, and ADM1818 Can be used with a manual push-button to generate a reset: ADM1813, ADM1818 Initialization of microprocessor systems with added safety Available in 3-lead SOT-23 and SC70 packages APPLICATIONS Microprocessor systems Computers Controllers Intelligent instruments Automotive systems GENERAL DESCRIPTION The ADM181x range of voltage monitoring circuits is used in any application where an electronic system needs to be reset when a voltage increases above or below a predetermined value. Because of the reset delay time incorporated into the ADM181x series, these devices provide a safe startup for electronic systems. Before a system initializes, the power supply must stabilize. Using the ADM181x series ensures that there are typically 150 ms for the power supply to stabilize before the system resets and safe system initialization begins. The ADM181x series of microprocessor reset circuits are available in low cost, space-saving SOT-23 and SC70 packages. FUNCTIONAL BLOCK DIAGRAMS VCC VCC VCC VCC GND GND GND RESET MONITOR 5.5k Ω GND 5.5k Ω RST ADM1810/ADM1815 ADM1811/ADM1816 ADM1812/ADM1817 ADM1813/ADM1818 VCC TOLERANCE BIAS TC REFERENCE VCC TOLERANCE BIAS TC REFERENCE VCC TOLERANCE BIAS TC REFERENCE VCC TOLERANCE BIAS TC REFERENCE 150ms DELAY 150ms DELAY 150ms DELAY 150ms DELAY RST RST RST Figure 1. |
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Ähnliche Beschreibung - ADM1818-R23AKS-RL |
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