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IMP809JEUR-T Datasheet(PDF) 1 Page - IMP, Inc |
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IMP809JEUR-T Datasheet(HTML) 1 Page - IMP, Inc |
1 / 7 page Key Features Applications 3-Pin Microcontroller Power Supply Supervisor x Embedded controllers x Battery operated systems x Intelligent instruments x Wireless communication systems x PDAs and handheld equipment x Improved Maxim MAX809/MAX810 replacement — Lower supply current…6µA — 80% lower maximum supply current x Monitor 5V, 3.3V and 3V supplies x 140ms min. reset pulse width x Active-low reset valid with 1.1V supply (IMP809) x Small 3-pin SOT-23 package x No external components x Specified over full temperature range — –40°C to 105°C Block Diagrams IMP809 (IMP810) VCC VCC VCC GND GND RESET (RESET) 809/10_01.eps µP RESET Input The IMP809/IMP810 are 3.0V, 3.3V and 5.0V power supply supervisor cir- cuits optimized for low-power microprocessor (µP), microcontroller (µC) and digital systems. The IMP809/810 are improved drop-in replacements for the Maxim MAX809/810 and feature 60% lower supply current. A reset signal is issued if the power supply voltage drops below a preset reset threshold and is asserted for at least 140ms after the supply has risen above the reset threshold. The IMP809 has an active-low RESET output that is guaranteed to be in the correct state for VCC down to 1.1V. The IMP810 has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC. Low supply current makes the IMP809/IMP810 ideal for use in portable and battery operated equipment. The IMP809/IMP810 are available in a compact 3-pin SOT23 package. Six voltage thresholds are available to support 3V to 5V systems: IMP809, IMP8 IMP809, IMP81100 POWER MANAGEMENT Reset Threshold Suffix Voltage (V) L 4.63 M 4.38 J 4.00 T 3.08 S 2.93 R 2.63 IMP, Inc. San Jose, CA 408-432-9100/www.impweb.com |
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