5V EconoReset with Push-Pull Output

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The DS1810 EconoReset uses a precision temperature reference and comparator circuit to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 150ms to allow the power supply and processor to stabilize.
DS1810: Block Diagram DS1810: Block Diagram Enlarge+

Key Features

  • Automatically restarts a microprocessor after power failure
  • Maintains reset for 150ms after VCC returns to an in-tolerance condition
  • Reduces need for discrete components
  • Precision temperature-compensated voltage reference and voltage sensor
  • Low-cost TO-92 or space saving surface mount SOT-23 packages available
  • Push-Pull output for low current operation
  • Operating temperature -40°C to +85°C

See parametric specs for Supervisors (1 Monitored Voltage) (252)

Part NumberReset Thresh.
Reset OuttRESETWatchdog FeatureReset Thresh. Accur.
min@ +25°CmaxSee Notes
DS1810 3.3 to 5.5
Active Low
85ms to 300msNo Watchdog2.540
$2.14 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
Product Reliability Reports: DS1810.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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