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LM3723

Features: *Precise monitoring of 2.5V, 3.3V, and 5V supply voltages*Fully specified over temperatureIndustrial: −40˚C to +85˚CExtended: −40˚C to +125˚C*100 ms minimum Power-On Reset pulse width, 190 ms ypical:Active-Low RESET Output (LM3722)Active-High RESET Output ...

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SeekIC No. : 004395448 Detail

LM3723: Features: *Precise monitoring of 2.5V, 3.3V, and 5V supply voltages*Fully specified over temperatureIndustrial: −40˚C to +85˚CExtended: −40˚C to +125˚C*100 ms minimum...

LM3723 Data Sheet

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Part Number:
LM3723
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

*Precise monitoring of 2.5V, 3.3V, and 5V supply voltages
*Fully specified over temperature
Industrial: −40˚C to +85˚C
Extended: −40˚C to +125˚C
*100 ms minimum Power-On Reset pulse width, 190 ms ypical:
Active-Low RESET Output (LM3722)
Active-High RESET Output (LM3723)
Active-Low RESET Open Drain Output (LM3724)
*Guaranteed RESET Output valid for VCC 1V
*Low Supply Current, 6µA typical
*Power supply transient immunity
*Compatible with MAX811/812 applications




Application

Microprocessor Systems
Computers
Controllers
Intelligent Instruments
Portable/Battery-Powered Equipment




Pinout

Connection Diagram




Specifications

Power on Reset Yes
Watchdog No
Power Fail Input No
Manual Reset Yes
On/Off Pin Yes
Error Flag Yes
Input Min Voltage 1 Volt
Input Max Voltage 6 Volt
Output Current 20 mA
RegType Supervisor
Temperature Min -40 deg C
Temperature Max 125 deg C
Voltage Supervised 2.5 Volt
View Using Catalog


VCC,MR.............................................−0.3V to 6.0V
RESET, RESET........................−0.3V to (VCC+ 0.3V)
Input Current, VCC Pin..................................20mA
Output Current, RESET,
RESETPin..................................................... 20mA
ESD Rating (Note 2)........................................ 2kV
Continuous Power Dissipation (TA = +70˚C)
SOT-23 (Note 3)..................................... 320mW
Operating Temperature Range
Industrial: .................................... −40˚C to +85˚C
Extended: .................................. −40˚C to +125˚C
Maximum Junction Temperature...................125˚C
Storage Temperature Range..... −65˚C to +160˚C
Lead Temperature
(soldering, 10sec) ......................................+300˚C




Description

The LM3722/LM3723/LM3724 microprocessor supervisory circuits monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, power-down, brown-out conditions, and manual reset.

The LM3722/LM3723/LM3724 asserts a reset signal whenever the supply decreases below the factory-programmed reset threshold for at least 100 ms. The reset signal remains asserted for 190 ms after VCC rises above the threshold.

The LM3722 has an active-low RESET push-pull output. The LM3723 has an active-high RESET push-pull output. The LM3724 has an active-low open-drain RESET output.

Three standard reset voltage options are available, suitable for monitoring 5V, 3.3V, and 2.5V supply voltages. Additional reset voltages are also available; contact National Semiconductor for details.

With a low supply current of only 6µA,the LM3722/LM3723/LM3724 are ideal for use in portable equipment. The LM3722/LM3723/LM3724 are available in the 5-pin SOT23 package.






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