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ADM6823:  Low Voltage Supervisory Circuits with Watchdog and Manual Reset in 5-Lead SOT-23

Product Details


The ADM6823/ADM6824/ADM6825 are supervisory circuits that monitor power supply voltage levels and code execution integrity in microprocessor-based systems. As well as providing power-on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by means of an external push-button through a manual reset input. The parts feature different combinations of watchdog input and manual reset input and output stage configurations, as shown in Table 1 in the datasheet.

Each part is available in nine reset threshold options, ranging from 1.58 V to 4.63 V. The reset and watchdog timeout periods are fixed at 140 ms (minimum) and 1.6 sec (typical), respectively.

The ADM6823/ADM6824/ADM6825 are available in 5-lead SOT-23 packages and typically consume only 7 μA, making them suitable for use in low power, portable applications.

Applications
  • Microprocessor systems
  • Computers
  • Controllers
  • Intelligent instruments
  • Portable equipment

FEATURES and BENEFITS

  • Precision low voltage monitoring
  • 9 reset threshold options: 1.58 V to 4.63 V
  • 140 ms (minimum) reset timeout
  • Manual reset input
  • Reset output stages
    Active-low Push-pull
  • Low power consumption: 7 μA
  • Guaranteed reset output valid to VCC = 1 V
  • Power supply glitch immunity
  • Specified from −40°C to +125°C
  • 5-lead SOT-23 package

Functional Block Diagram for ADM6823

OF NOTE ...

For additional technical information and samples, please contact the Supervisory Group. Supply your name, company, mailing address, telephone/fax numbers, email address and a brief description of your application.

Design Tools,Models,Drivers & Software

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Supervisor Parametric Search
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Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

ADM6823 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADM6823RYRJZ-RL7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.76 Y  Material Info PCN Purchase Sample
ADM6823SYRJZ-RL7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.76 Y  Material Info PCN Purchase Sample
ADM6823TYRJZ-RL7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.76 Y  Material Info PCN Purchase Sample
ADM6823VYRJZ-RL7 Status: Production SOT23 5/6/8 Leads 5 Ind Reel, 3000 - $0.76 Y  Material Info Notify Me Purchase Sample
ADM6823WYRJZ-RL7 Status: Production SOT23 5/6/8 Leads 5 Ind Reel, 3000 - $0.76 Y  Material Info Notify Me Purchase Sample
ADM6823ZYRJZ-RL7 Status: Production 5 ld SOT-23 5 Ind Reel, 3000 - $0.76 Y  Material Info PCN Purchase Sample
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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