LM3723EM5X-2.32 ,5-Pin Microprocessor Reset Circuitsapplicationsfor monitoring 5V, 3.3V, and 2.5V supply voltages. Additionalreset voltages are also av ..
LM3723EM5X-3.08 ,5-Pin Microprocessor Reset CircuitsBlock DiagramLM3722/LM3723/LM3724
LM3723EM5X-4.63 ,5-Pin Microprocessor Reset CircuitsLM3722/LM3723/LM3724 5-Pin Microprocessor Reset CircuitsJune 2001LM3722/LM3723/LM37245-Pin Micropro ..
LM3723IM5-2.32 ,5-Pin Microprocessor Reset CircuitsBlock DiagramLM3722/LM3723/LM3724
LM3723IM5-3.08 ,5-Pin Microprocessor Reset CircuitsApplicationsWith a low supply current of only 6μA, then Microprocessor SystemsLM3722/LM3723/LM3724 ..
LM3723IM5-4.63 ,5-Pin Microprocessor Reset CircuitsFeaturesn Precise monitoring of 2.5V, 3.3V, and 5V supplyThe LM3722/LM3723/LM3724 microprocessor su ..
LMV431CM5X/NOPB ,Low-Voltage (1.24V) Adjustable Precision Shunt Regulators 5-SOT-23 0 to 70Electrical Characteristics....... 85 Revision HistoryNOTE: Page numbers for previous revisions may ..
LMV431CZ ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsFeaturesn Low Voltage Operation/Wide Adjust Range (1.24V/30V)The LMV431, LMV431A and LMV431B are pr ..
LMV431CZ ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsLMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsAugust 2003LMV431/L ..
LMV431IM5 ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsLMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsAugust 2003LMV431/L ..
LMV431IM5/NOPB ,Low-Voltage (1.24V) Adjustable Precision Shunt Regulators 5-SOT-23 -40 to 85Features 3 DescriptionThe LMV431, LMV431A and LMV431B are precision1• Low-Voltage Operation/Wide Ad ..
LMV431IM5X ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsLMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsAugust 2003LMV431/L ..
LM3722EM5-2.32-LM3722EM5-3.08-LM3722EM5-4.63-LM3722EM5X-2.32-LM3722EM5X-3.08-LM3722EM5X-4.63-LM3722IM5-3.08-LM3722IM5-4.63-LM3722IM5X-4.63-LM3723EM5-2.32-LM3723EM5-3.08-LM3723EM5X-2.32-LM3723EM5X-3.08-LM3723EM5X-4.63-LM3723IM5-2.32-LM3723IM5-3.08-LM3723IM5-4.63-LM3723IM5X-2.
5-Pin Microprocessor Reset Circuits
LM3722/LM3723/LM3724
5-Pin Microprocessor Reset Circuits
General DescriptionThe LM3722/LM3723/LM3724 microprocessor supervisory
circuits monitor the power suppliesin microprocessor and
digital systems. They providea resetto the microprocessor
during power-up, power-down, brown-out conditions, and
manual reset.
The LM3722/LM3723/LM3724 assertsa reset signal when-
ever the supply decreases below the factory-programmed
reset thresholdforat least 100 ms. The reset signal remains
assertedfor 190ms after VCC rises abovethe threshold.
The LM3722 hasan active-low RESET push-pull output. The
LM3723 hasan active-high RESET push-pull output. The
LM3724 hasan active-low open-drain RESET output.
Three standard reset voltage options are available, suitable
for monitoring5V, 3.3V, and 2.5V supply voltages. Additional
reset voltages are also available; contact National Semicon-
ductorfor details.
With a low supply current of only 6μA, the
LM3722/LM3723/LM3724 are idealfor usein portable equip-
ment. The LM3722/LM3723/LM3724 are availablein the
5-pin SOT23 package.
Features Precise monitoringof 2.5V, 3.3V, and5V supply
voltages Fully specified over temperature
Industrial: −40˚Cto +85˚C
Extended: −40˚Cto +125˚C 100ms minimum Power-On Reset pulse width, 190ms
typical:
Active-Low RESET Output (LM3722)
Active-High RESET Output (LM3723)
Active-Low RESET Open Drain Output (LM3724) Guaranteed RESET Output validfor VCC≥1V Low Supply Current, 6μA typical Power supply transient immunity Compatible with MAX811/812 applications
Applications Microprocessor Systems Computers Controllers Intelligent Instruments Portable/Battery-Powered Equipment
Typical Application Circuit20014401 20014437
Connection Diagram
SOT23-520014402)arefor LM3723
June 2001
LM3722/LM3723/LM3724
5-Pin
Microprocessor
Reset
Circuits
