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DS1817
Active High 3.3V EconoReset


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Description
FULL DATA SHEET (PDF, 128kB)
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The DS1812 (5V) and DS1817 (3.3V) EconoResets are simple three-pin voltage monitors and power-on resets that hold reset for 150ms for stabilization after power returns to tolerance. The voltage monitor uses precision temperature reference and comparator circuits that detect out-of-tolerance conditions and generate an active high reset.

The output has a push-structure capable of maintaining a valid output to 0 volts with a 100kΩ pull-down resistor. The low-power circuit has a quiescent current consumption of only 40 micro-amps.

The DS1817 replaces discrete components and saves space, particularly in the new SOT-23 package. EconoResets can benefit any system that requires reliable processor operation, especially consumer products like printers, HVAC, energy management, cellular telephones, PDAs, and set-top boxes.

Key Features
  • Power-fail detection
  • Resets system during power transients
  • Push-pull active high reset
  • 150ms stabilization pause
  • Maximum quiescent current of 35µA
  • Operating ranges:
    • 3.3V with 5%, 10% or 20% tolerance
    • -40°C to +85°C

Key Specifications:   Supervisors (1 Monitored Voltage)
Part Number Reset Threshold Range (V) Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Operating Temp. Range (°C)
DS1817  2.5 to 3.3 Push-Pull 85ms to 300ms No Watchdog 2.5 35 -40 to +85
0 to +70
See All Supervisors (1 Monitored Voltage) (268)

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    1999-11-19
    This page last modified: 2007-07-25




             


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