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LM3711

Features: n Standard Reset Threshold voltage: 3.08Vn Custom Reset Threshold voltages: For other voltagesbetween 2.2V and 5.0V in 10mV increments, contactNational Semiconductor Corp.n No external components required` Manual-Reset input` RESET (LM3710) or RESET (LM3711) outputs` Precision supply vol...

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SeekIC No. : 004395439 Detail

LM3711: Features: n Standard Reset Threshold voltage: 3.08Vn Custom Reset Threshold voltages: For other voltagesbetween 2.2V and 5.0V in 10mV increments, contactNational Semiconductor Corp.n No external com...

LM3711 Data Sheet

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Part Number:
LM3711
Supply Ability:
5000

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  • 1~5000
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Product Details

Description



Features:

n Standard Reset Threshold voltage: 3.08V
n Custom Reset Threshold voltages: For other voltages
between 2.2V and 5.0V in 10mV increments, contact
National Semiconductor Corp.
n 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
` Available in micro SMD package for minimum footprint
` ±0.5% Reset threshold accuracy at room temperature
` ±2% Reset threshold accuracy over temperature extremes
` Reset assertion down to 1V VCC (RESET option only)
` 28 A VCC supply current




Application

` Embedded Controllers and Processors
` Intelligent Instruments
` Automotive Systems
` Critical P Power Monitoring




Pinout

Connection Diagram




Specifications

Supply Voltage (VCC) ....−0.3V to 6.0V
All Other Inputs .. −0.3V to VCC + 0.3V
ESD Ratings (Note 2)
Human Body Model.......... 1.5kV
Machine Model..............150V
Power Dissipation ......... (Note 3)



Power on Reset Yes
Watchdog Yes
Power Fail Input Yes
Manual Reset Yes
On/Off Pin Yes
Error Flag Yes
Input Min Voltage 1.2 Volt
Input Max Voltage 5.5 Volt
RegType Supervisor
Temperature Min -40 deg C
Temperature Max 85 deg C
View Using Catalog





Description

The LM3710/LM3711 series of microprocessor supervisory circuits provide the maximum flexibility for monitoring power
supplies and battery controlled functions in systems without backup batteries. The LM3710/LM3711 series are available in MSOP-10 and 9-bump micro SMD packages. Built-in features include the following:

Reset: Reset is asserted during power-up, power-down, and brownout conditions. RESET is guaranteed down to VCC of 1.0V. Manual Reset Input: An input that asserts reset when pulled low.

Power-Fail Input: A 1.225V threshold detector for power fail warning, or to monitor a power supply other than VCC.
Low Line Output: This early power failure warning indicator goes low when the supply voltage drops to a value which is 2% higher than the reset threshold voltage.

Watchdog Timer: The WDI (Watchdog Input) monitors one of
the P's output lines for activity. If no output transition occurs
during the watchdog timeout period, reset is activated.






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