LM3711XQMMX-308 ,Microprocessor Supervisory Circuits with Power Fail Input, Low Line Output, Manual Reset and Watchdog TimerLM3710/LM3711 Microprocessor Supervisory Circuits with Power Fail Input, Low Line Output,Manual Res ..
LM3722EM5-2.32 ,5-Pin Microprocessor Reset CircuitsApplicationsWith a low supply current of only 6μA, then Microprocessor SystemsLM3722/LM3723/LM3724 ..
LM3722EM5-3.08 ,5-Pin Microprocessor Reset CircuitsApplicationsWith a low supply current of only 6μA, then Microprocessor SystemsLM3722/LM3723/LM3724 ..
LM3722EM5-4.63 ,5-Pin Microprocessor Reset CircuitsFeaturesn Precise monitoring of 2.5V, 3.3V, and 5V supplyThe LM3722/LM3723/LM3724 microprocessor su ..
LM3722EM5X-2.32 ,5-Pin Microprocessor Reset CircuitsPin DescriptionPIN NAME FUNCTION1 GND Ground reference2 GND Ground reference, device substrate, con ..
LM3722EM5X-3.08 ,5-Pin Microprocessor Reset CircuitsPin DescriptionPIN NAME FUNCTION1 GND Ground reference2 GND Ground reference, device substrate, con ..
LMV431BCM5X ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsFeaturesn Low Voltage Operation/Wide Adjust Range (1.24V/30V)The LMV431, LMV431A and LMV431B are pr ..
LMV431BIMF ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsLMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsAugust 2003LMV431/L ..
LMV431BIMF ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsApplicationstial tolerances of 1.5%, 1% and 0.5%, and functionally lendsn Shunt Regulatorthemselves ..
LMV431BIMF ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsFeaturesn Low Voltage Operation/Wide Adjust Range (1.24V/30V)The LMV431, LMV431A and LMV431B are pr ..
LMV431BIMFX ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsFeaturesn Low Voltage Operation/Wide Adjust Range (1.24V/30V)The LMV431, LMV431A and LMV431B are pr ..
LMV431CM5 ,Low-Voltage (1.24V) Adjustable Precision Shunt RegulatorsFeaturesn Low Voltage Operation/Wide Adjust Range (1.24V/30V)The LMV431, LMV431A and LMV431B are pr ..
LM3710XKMM-232-LM3710XKMM-463-LM3710XQMM-308-LM3710YQMM-232-LM3711XKMM-232-LM3711XKMM-463-LM3711XQBP-308-LM3711XQMM-308-LM3711XQMMX-308
Microprocessor Supervisory Circuits with Power Fail Input, Low Line Output, Manual Reset and Watchdog Timer
LM3710/LM3711
Microprocessor Supervisory Circuits with Power Fail
Input, Low Line Output, Manual Reset and Watchdog
Timer
General DescriptionThe LM3710/LM3711 seriesof microprocessor supervisory
circuits providethe maximum flexibilityfor monitoring power
supplies and battery controlled functionsin systems without
backup batteries. The LM3710/LM3711 series are available MSOP-10 and 9-bump micro SMD packages.
Built-in features includethe following:
Reset: Resetis asserted during power-up, power-down, and
brownout conditions. RESETis guaranteed downto VCCof
1.0V.
Manual Reset Input:An input that asserts reset when pulled
low.
Power-Fail Input:A 1.225V threshold detectorfor powerfail
warning,orto monitora power supply other than VCC.
Low Line Output: This early power failure warning indicator
goes low whenthe supply voltage dropstoa value whichis higher than the reset threshold voltage.
Watchdog Timer: The WDI (Watchdog Input) monitors oneof
the µP’s output linesfor activity.Ifno output transition occurs
during the watchdog timeout period, resetis activated.
Features Standard Reset Threshold voltage: 3.08V Custom Reset Threshold voltages: For other voltages
between 2.2V and 5.0Vin 10mV increments, contact
National Semiconductor Corp. No external components required Manual-Reset input RESET (LM3710)or RESET (LM3711) outputs Precision supply voltage monitor Factory programmable Reset and Watchdog Timeout
Delays Separate Power Fail comparator Availablein micro SMD packagefor minimum footprint ±0.5% Reset threshold accuracyat room temperature ±2% Reset threshold accuracy over temperature
extremes Reset assertion downto1V VCC (RESET option only)28µA VCC supply current
Applications Embedded Controllers and Processors Intelligent Instruments Automotive Systems CriticalµP Power Monitoring
Typical ApplicationJanuary 2005
LM3710/LM371
Microprocessor
Supervisory
Circuits
with
Power
Fail
Input,
Low
Line
Output,
Manual
Reset
and
atchdog
imer
