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LM3702

National Semiconductor
Part Number LM3702
Manufacturer National Semiconductor
Description Microprocessor Supervisor
Published Jan 16, 2007
Detailed Description www.DataSheet4U.com LM3702/LM3703 Microprocessor Supervisory Circuits with Low Line Output and Manual Reset September ...
Datasheet PDF File LM3702 PDF File

LM3702
LM3702

Overview
www.
DataSheet4U.
com LM3702/LM3703 Microprocessor Supervisory Circuits with Low Line Output and Manual Reset September 2003 LM3702/LM3703 Microprocessor Supervisory Circuits with Low Line Output and Manual Reset General Description The LM3702/LM3703 series of microprocessor supervisory circuits provide the maximum flexibility for monitoring power supplies and battery controlled functions in systems without backup batteries.
The LM3702/LM3703 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.
Manual Reset Input: An input that asserts reset when pulled low.
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.
n n n n n n n n No external components required Manual-Reset input RESET (LM3702) or RESET (LM3703) 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 n Reset assertion down to 1V VCC (RESET option only) n 28 µA VCC supply current Applications n n n n Embedded Controllers and Processors Intelligent Instruments Automotive Systems Critical µP Power Monitoring 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.
Typical Application 20011503 © 2003 National Semiconductor Corporation DS200115 www.
national.
com LM3702/LM3703 Connection Diagram Top View (looking from the coating side) micro SMD 9 Bump Package BPA09 20011501 Pin Descriptions Bump No.
A1 B1 C1 Name MR VCC RESET Function Manual-Reset input.
When MR is less than VMRT (Manual Reset Threshold) RESET/RESET is engag...


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