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Features
Standard Reset Threshold voltage: 3.08V
Custom Reset Threshold voltages: For other voltages between 2.2V and 5.0V in 10mV increments, contact National Semiconductor
Corp.
No external components required
^RESET (LM3700) or RESET (LM3701) outputs
Precision supply voltage monitor
Factory programmable Reset Timeout Delay
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 µA VCC supply current
Description The LM3700/LM3701 series of microprocessor supervisory circuits provide the maximum flexibility for monitoring power supplies
and battery controlled functions in systems without backup batteries. The LM3700/LM3701 series are available in a 9-bump
micro SMD package.
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.
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.
Applications
Embedded Controllers and Processors
Intelligent Instruments
Automotive Systems
Critical µP Power Monitoring
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