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MFG:AD D/C:0508+
Part Number: ADM812MART
MFG: AD
D/C: 0508+
Description: The ADM811/ADM812 are reliable voltage m...
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ADM812MART
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DataSheet
General Description
ADM812MART General Description
The ADM811/ADM812 are reliable voltage monitoring devices suitable for use in most voltage monitoring applications.
The ADM811/ADM812 are designed to monitor five different voltages, each allowing for a 5% or 10% degradation of standard PSU voltages before a reset occurs. These voltages have been selected for the effective monitoring of +3 V, +3.3 V and +5 V supply voltage levels.
Included in this circuit is a debounced Manual Reset input.Reset can be activated using an electrical switch (or an input from another digital device) or by a degradation of the supply voltage. The Manual Reset function is very useful especially if the circuit in which the ADM811/ADM812 is operating enters into a state that can only be detected by the user. Allowing the user to manually reset a system can reduce the damage or dan-ger that could be otherwise caused by an out-of-control or locked up system.
ADM812MART Maximum Ratings
(Typical values are at TA = +25 C unless otherwise noted)
Terminal Voltage (With Respect to Ground)
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +6 V
All Other Inputs . . . . . . . . . . . . . . . . .0.3 V to VCC + 0.3 V
Input Current
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
MR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 20 mA
Output Current
RESET, RESET . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 20 mA
Power Dissipation (TA = +70 °C)
RT-4, SOT-143 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mW
Derate by 4 mW/ C above +70 °C
q JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . 330 °C/W
Operating Temperature Range . . . . . . . . 40 °C to +85 °C
Storage Temperature Range . . . . . . . . . 65 °C to +160 °C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . .+300 °C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . .+215 °C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . . .+220 °C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 kV
Terminal Voltage (With Respect to Ground)
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +6 V
All Other Inputs . . . . . . . . . . . . . . . . .0.3 V to VCC + 0.3 V
Input Current
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
MR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 20 mA
Output Current
RESET, RESET . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 20 mA
Power Dissipation (TA = +70 °C)
RT-4, SOT-143 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mW
Derate by 4 mW/ C above +70 °C
q JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . 330 °C/W
Operating Temperature Range . . . . . . . . 40 °C to +85 °C
Storage Temperature Range . . . . . . . . . 65 °C to +160 °C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . .+300 °C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . .+215 °C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . . .+220 °C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 kV
ADM812MART Features
Superior Upgrade for MAX811/MAX812
Specified Over Temperature
Low Power Consumption (5 A Typ)
Precision Voltage Monitor: +3 V, +3.3 V, +5 V Options
Reset Assertion Down to 1 V Vcc
140 ms Min Power-On Reset
Logic Low RESET Output (ADM811)
Logic High RESET Output (ADM812)
Built-In Manual Reset
Specified Over Temperature
Low Power Consumption (5 A Typ)
Precision Voltage Monitor: +3 V, +3.3 V, +5 V Options
Reset Assertion Down to 1 V Vcc
140 ms Min Power-On Reset
Logic Low RESET Output (ADM811)
Logic High RESET Output (ADM812)
Built-In Manual Reset
ADM812MART Typical Application
Microprocessor Systems Controllers Intelligent Instruments Automotive Systems Safety Systems Portable Instruments
ADM812MART-REEL
PDF/DataSheet Download
- Datasheet: ADM812MART-REEL
- File Size: 85675 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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