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MFG:MAXIM  Package Cooled:PLCC28  D/C:06+  

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Part Number: MAX814

 

MFG: MAXIM

Package Cooled: PLCC28

D/C: 06+

Description: The MAX814/MAX815/MAX816 are high-accuracy microprocessor (P) supervisory circuits that provide power-...


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MAX814 General Description


The MAX814/MAX815/MAX816 are high-accuracy microprocessor (P) supervisory circuits that provide power-on reset, watchdog, and power-fail functions. They eliminate manual trimming and improve reliability in critical  pplications needing high-accuracy reset thresholds. The RESET output is guaranteed to be in the correct state for Vcc down to 1V. The reset comparator is designed to ignore fast transients on Vcc. Reset thresholds are available for operation with a variety of 3V and 5V supply voltages.

A 75A maximum supply current makes the MAX814/ MAX815/MAX816 ideal for use in portable equipment. All three devices are available in 8-pin DIP and SO packages. See the Selector Table below for a review of features.

MAX814 Maximum Ratings

ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect GND)
Vcc....................................................................-0.3V to +6.0V
All Other Pins (Note 1)........................... -0.3V to (VCC + 0.3V)
Terminal Current (PFI, RESET IN,MR)...............................10mA
Terminal Current (all other pins) ....................................20mA
Continuous Power Dissipation (TA = +25°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ..........727mW
SO (derate 5.88mW/°C above +70°C).......................471mW
Operating Temperature Ranges
Commercial........................................................0°C to +70°C
Extended...........................................................-40°C to +85C
Storage Temperature Range .......................-65°C to +125°C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating  onditions for extended periods may affect device reliability

MAX814 Features

±1% Worst-Case Reset Threshold Accuracy
4.8V, 4.7V, 4.55V, 3.03V, or Adjustable Reset Thresholds
±1% Low-Line Threshold Accuracy (MAX814) 60mV Above Reset Threshold
200ms Reset Time Delay
Active-Low RESET Output Active-High RESET Output (MAX814/MAX816)
75A Max Supply Current
Guaranteed RESET Valid to VCC = 1V
Manual Reset Input
±2% Power-Fail Comparator
Independent Watchdog with 1.56sec Timeout (MAX815)
Power-Supply Glitch Immunity
8-Pin SO and DIP Packages

MAX814 Typical Application

Medical Equipment
Controllers
Intelligent Instruments
Critical P Power Monitoring
Portable/Battery-Powered Equipment
Set-Top Boxes

MAX814 Connection Diagram

MAX814  Connection Diagram

MAX814 datasheet

MAX814
PDF/DataSheet Download

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    The MAX813LESA is one member of the MAX813L series.It has the following features including (1)MAX package: smallest 8-pin SO,(2)200ms reset pulse width,(3)debounced TTL/CMOS-compatible manual-reset input,(4)voltage monitor for power-fail or low-battery warni...

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