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Part Number: MAX825
Description: The MAX823/MAX824/MAX825* microprocessor (P) supervisory circuits combine reset output, watchdog, and ...
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MAX825
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DataSheet
General Description
MAX825 General Description
The MAX823/MAX824/MAX825* microprocessor (P) supervisory circuits combine reset output, watchdog, and manual-reset input functions in a 5-pin SOT23-5 package. They significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX823/MAX824/MAX825 are specifically designed to ignore fast transients on Vcc.
Five preprogrammed reset threshold voltages are available, designated by the following package suffixes: L = 4.63V, M = 4.38V, T = 3.08V, S = 2.93V, and R = 2.63V. All three devices have an active-low reset output, which is guaranteed to be in the correct state for Vcc down to 1V. The MAX824/MAX825 also have an active-high reset utput. The following Selector Guide explains the functions offered in this series of parts.
MAX825 Maximum Ratings
ABSOLUTE MAXIMUM RATINGS
Vcc.......................................................................-0.3V to +6.0V
All Other Pins.............................................-0.3V to (VCC + 0.3V)
Input Current, All Pins Except RESET and RESET..... ..........20mA
Output Current, RESET, RESET ..........................................20mA
Rate of Rise, VCC ...........................................................100V/s
Continuous Power Dissipation (TA = +70°C)
SOT23-5 (derate 7.1mW/°C above +70°C)...................571mW
Operating Temperature Range
MAX82_EUK .....................................................-40°C to +85°C
Storage Temperature Range ..........................-65°C to +160°C
Lead Temperature (soldering, 10sec) ............................+300°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 conditions for extended periods may affect device reliability.
MAX825 Features
Precision Monitoring of +3V, +3.3V, and +5V Power Supplies
Operating Current: 10A (MAX823L/M)
3A (MAX825T/S/R)
Fully Specified Over Temperature
140ms Min Power-On Reset
Guaranteed RESET Valid to Vcc = 1V
Power-Supply Transient Immunity
Watchdog Timer with 1.6sec Timeout (MAX823/MAX824)
Manual-Reset Input (MAX823/MAX825)
No External Components
Operating Current: 10A (MAX823L/M)
3A (MAX825T/S/R)
Fully Specified Over Temperature
140ms Min Power-On Reset
Guaranteed RESET Valid to Vcc = 1V
Power-Supply Transient Immunity
Watchdog Timer with 1.6sec Timeout (MAX823/MAX824)
Manual-Reset Input (MAX823/MAX825)
No External Components
MAX825 Typical Application
Battery-Powered Computers and Controllers
Embedded Controllers
Intelligent Instruments
Automotive Systems
Critical P Monitoring
Portable/Battery-Powered Equipment
Embedded Controllers
Intelligent Instruments
Automotive Systems
Critical P Monitoring
Portable/Battery-Powered Equipment
MAX825 Connection Diagram
MAX825
PDF/DataSheet Download
- Datasheet: MAX825
- File Size: 80771 KB
- Manufacturer: MAXIM [Maxim Integrated Products]
- Click here to Download
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MAX825 Relative Products
MAX824ZEXK+T
IC SUPERVISOR MPU SC70-5
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MAX824TEXK+T
IC SUPERVISOR MPU SC70-5
MAX824TEUK+T
IC SUPERVISOR MPU SOT23-5
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