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LP3470M5X-2.93/NOPB
Active low Reset IC with Programmable Delay and 1% Reset Threshold 5-SOT-23 -40 to 85
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LP3470SNVS003G–JUNE 1999–REVISED APRIL 2016
LP3470 Voltage Supervisor With Programmable Delay and 1% Reset Threshold Features 5-Pin SOT-23 Package Open-Drain Reset Output Programmable Reset Time-Out Period Usingan
External Capacitor Immuneto Short VCC Transients ±1% Reset Threshold Accuracy Over
Temperature Low Quiescent Current (16 µA typical) Reset Valid Downto VCC= 0.5V
Applications Critical µP and µC Power Monitoring Intelligent Instruments Computers Portable and Battery-Powered Equipment
DescriptionThe LP3470 device is a micropower voltage
supervisory circuit designed to monitor voltages
within 1% of reset threshold over temperature.It
provides maximum adjustability for power-on-reset
(POR) and supervisory functions.
The LP3470 assertsa reset signal whenever the VCC
supply voltage falls belowa reset threshold. The
reset time-out periodis adjustable using an external
capacitor. Reset remains asserted for an interval
(programmedby an external capacitor) after VCC has
risen above the threshold voltage.
For information on available reset threshold voltage
options, see Mechanical, Packaging, and Orderable
Information.
Device Information(1)(1) For all available packages, see the Package Option
Addendumatthe endofthe data sheet.
Basic Operating Circuit
