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MFG:ADI D/C:09
Part Number: ADM698
MFG: ADI
D/C: 09
Description: The ADM698/ADM699 supervisory circuits provide power supply monitoring and watchdog timing for micropr...
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ADM698
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Suppliers
DataSheet
General Description
ADM698 General Description
The ADM698/ADM699 supervisory circuits provide power supply monitoring and watchdog timing for microprocessor systems.
The ADM698 monitors the 5 V VCC power supply and generates aRESET pulse during power up, power down and during low voltage "Brown Out" conditions. The RESET output is guaranteed to be functional (logic low) with VCC as low as 1 V.
The ADM699 features an identical monitoring circuit as in the ADM698 plus an additional watchdog timer input to monitor microprocessor activity. The RESET output is forced low if the watchdog input is not toggled within the 1 second watchdog timeout period.
Both parts are available in 8-pin plastic DIP and 16-lead SOIC packages. The 16-lead SOIC contains additional outputs RESET (without inversion) and Watchdog Output WDO (ADM699 only).
ADM698 Maximum Ratings
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +6 V
All Other Inputs . . . . . . . . . . . . . . . . . .. . . . . . . 0.3 V to VCC + 0.3 V
Power Dissipation 8-Pin DIP . . . . . . . . . . . . . . . 500 mW
JA, Thermal Impedance . . . . . . . . . . . . . . .+120°C/W
Power Dissipation 16-Pin SOIC . . . . . . . . . . . . .375 mW
JA, Thermal Impedance . . . . . . . . . . . . . . . +110°C/W
Power Dissipation 8-Pin Cerdip . . . . . . . . . . . . .500 mW
JA, Thermal Impedance . . . . . . . . . . . . . . . +125°C/W
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . . .. 40°C to +85°C
Extended (S Version) . . . . . . . . . . . . . . . . .. 55°C to +125°C
Storage Temperature Range . . . . . . . . . . . .. . 65°C to +150°C
Lead Temperature (Soldering, 10 secs) . . . . . . +300°C
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . .+215°C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . +220°C
All Other Inputs . . . . . . . . . . . . . . . . . .. . . . . . . 0.3 V to VCC + 0.3 V
Power Dissipation 8-Pin DIP . . . . . . . . . . . . . . . 500 mW
JA, Thermal Impedance . . . . . . . . . . . . . . .+120°C/W
Power Dissipation 16-Pin SOIC . . . . . . . . . . . . .375 mW
JA, Thermal Impedance . . . . . . . . . . . . . . . +110°C/W
Power Dissipation 8-Pin Cerdip . . . . . . . . . . . . .500 mW
JA, Thermal Impedance . . . . . . . . . . . . . . . +125°C/W
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . . .. 40°C to +85°C
Extended (S Version) . . . . . . . . . . . . . . . . .. 55°C to +125°C
Storage Temperature Range . . . . . . . . . . . .. . 65°C to +150°C
Lead Temperature (Soldering, 10 secs) . . . . . . +300°C
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . .+215°C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . +220°C
ADM698 Features
Superior Upgrade for MAX698/MAX699
Guaranteed RESET Assertion with VCC = 1 V
Low 0.6 mA Supply Current
Precision 4.65 V Voltage Monitor
Power OK/Reset Time Delay
Watchdog Timer
Minimum Component Count
Performance Specified over Temperature
Guaranteed RESET Assertion with VCC = 1 V
Low 0.6 mA Supply Current
Precision 4.65 V Voltage Monitor
Power OK/Reset Time Delay
Watchdog Timer
Minimum Component Count
Performance Specified over Temperature
ADM698 Typical Application
Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical mP Power Monitoring
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical mP Power Monitoring
ADM698 Connection Diagram
ADM698
PDF/DataSheet Download
- Datasheet: ADM698
- File Size: 242247 KB
- Manufacturer:
- Click here to Download
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ADM698 Relative Products
ADM697SQ
IC SUPERVISOR MPU 100MA 16CDIP
ADM697ARZ-REEL
IC SUPERVISOR MPU 16SOIC
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ADM697ARZ
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ADM697AR-REEL
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