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ADM6315-44D4ARTZRL Datasheet(PDF) 1 Page - Analog Devices |
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ADM6315-44D4ARTZRL Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page Open-Drain Microprocessor Supervisory Circuit in 4-Lead SOT-143 ADM6315 Rev. E Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other 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 ©1999–2007 Analog Devices, Inc. All rights reserved. FEATURES Specified over temperature Low power consumption (5 μA typical) Precision voltage monitor of voltages from 2.5 V to 5 V at 100 mV increments Reset assertion down to VCC > 1 V Reset timeout periods: 1 ms, 20 ms, 140 ms, or 1120 ms (minimum) Built-in manual reset Pin compatible with the ADM811 Available in SOT-143 package APPLICATIONS Microprocessor systems Controllers Intelligent instruments Automotive systems Safety systems Portable instruments FUNCTIONAL BLOCK DIAGRAM DEBOUNCE ADM6315 MR GND RESET VCC VREF RESET CIRCUITRY Figure 1. ADM6315 GND GND 10kΩ SYSTEM POWER VCC MICROPROCESSOR SYSTEM RESET RESET MR Figure 2. Typical Operating Circuit GENERAL DESCRIPTION The ADM6315 is a reliable voltage-monitoring device that is suitable for use in most voltage-monitoring applications. The ADM6315 is designed to monitor as little as a 1.8% degradation of a power supply voltage. The ADM6315 can monitor all voltages (at 100 mV increments) from 2.5 V to 5 V. Included in this circuit is a debounced manual reset input. RESET can be activated using an ordinary switch (pulling MR low), a low input from another digital device, or a degradation of the supply voltage. The manual reset function is very useful, especially if the circuit in which the ADM6315 is operating enters into a state that can be detected only by the user. Allowing the user to reset a system manually can reduce the damage or danger that could otherwise be caused by an out-of-control or locked-up system. The ADM6315 is available in a cost- and space-efficient SOT-143 package. |
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