ADM809LART - Brand New Analog Devices Supervisors
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GENERAL DESCRIPTION
The ADM809/ADM810 supervisory circuits monitor the power supply voltage in microprocessor systems. They provide a reset output during power-up, power- down and brownout conditions. On power-up, an internal timer holds reset asserted for 240 ms. This holds the microprocessor in a reset state until conditions have stabilized. The RESET output remains operational with VCC as low as 1 V. The ADM809 provides an active low reset signal (RESET) while the ADM810 provides an active high signal (RESET) output.
Six reset threshold voltage options are available suitable for monitoring a variety of supply voltages. Refer to Table I. The reset comparator features built-in glitch immunity, making it immune to fast transients on VCC.
The ADM809/ADM810 consumes only 17 µA, making it suitable for low power portable equipment. It is packaged in a 3-pin SOT-23 package.FEATURES
Superior Upgrade for MAX809/MAX810
Specified Over Temperature
Low Power Consumption (17 mA)
Precision Voltage Monitor: +3 V, +3.3 V, +5 V Options
Reset Assertion Down to 1 V VCC
140 ms min Power-On Reset
Logic Low RESET Output (ADM809)
Logic High RESET Output (ADM810)APPLICATIONS
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems -
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- Last Updated: 2024/10/14 06:07 +0800
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