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IMP809 Dataheets PDF



Part Number IMP809
Manufacturers IMP Inc
Logo IMP  Inc
Description 3-Pin Microcontroller Power Supply Supervisor
Datasheet IMP809 DatasheetIMP809 Datasheet (PDF)

IMP809, IMP81 0 POWER MANAGEMENT 3-Pin Microcontroller Power Supply Supervisor The IMP809/IMP810 are 3.0V, 3.3V and 5.0V power supply supervisor circuits 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 .

  IMP809   IMP809



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IMP809, IMP81 0 POWER MANAGEMENT 3-Pin Microcontroller Power Supply Supervisor The IMP809/IMP810 are 3.0V, 3.3V and 5.0V power supply supervisor circuits 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: Key Features 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 Applications x x x x x Embedded controllers Battery operated systems Intelligent instruments Wireless communication systems PDAs and handheld equipment Reset Threshold Suffix Voltage (V) L M J T S R 4.63 4.38 4.00 3.08 2.93 2.63 Block Diagrams VCC VCC IMP809 (IMP810) RESET (RESET) GND RESET Input VCC µP GND 809/10_01.eps IMP, Inc. San Jose, CA 408-432-9100/www.impweb.com IMP809, IMP81 0 Pin Configuration SOT23 GND 1 IMP809 (IMP810) 3 VCC (RESET) RESET 2 809/10_02.eps Ordering Information Part Number 1 Reset Threshold (V) IMP809 Active LOW Reset IMP809LEUR-T IMP809MEUR-T IMP809JEUR-T IMP809TEUR-T IMP809SEUR-T IMP809REUR-T 4.63 4.38 4.00 3.08 2.93 2.63 4.63 4.38 4.00 3.08 2.93 2.63 Temperature Range – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C – 40°C to +105°C Pin-Package 3-SOT23 3-SOT23 3-SOT23 3-SOT23 3-SOT23 3-SOT23 3-SOT23 3-SOT23 3-SOT23 3-SOT23 3-SOT23 3-SOT23 Package Marking2 (XX Lot Code) AAXX ABXX CWXX ACXX ADXX AFXX AGXX AHXX AIXX AJXX AKXX ALXX IMP810 Active HIGH Reset IMP810LEUR-T IMP810MEUR-T IMP810JEUR-T IMP810TEUR-T IMP810SEUR-T IMP810REUR-T Notes: 1. Tape and Reel packaging is indicated by the -T designation. 2. Devices may also be marked with full part number: 809L, 810M etc. XX refers to lot. Related Products IMP809 Max. Supply Current Package Pins Manual RESET input Package Type Active-HIGH RESET output Active-LOW RESET output 2 IMP810 15µA 3 SOT-23 s IMP811 15µA 4 s SOT-143 s IMP812 15µA 4 s SOT-143 s 15µA 3 SOT-23 s IMP809, IMP810 Absolute Maximum Ratin.


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