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Product details

Parameters

Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 2.63, 2.75, 2.93, 3.08, 3.65, 4, 4.38, 4.63 Features Manual reset Reset threshold accuracy (%) 1 Output driver type/reset output Active-low, Open-drain Time delay (ms) Programmable Rating Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 125 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Supervisor & reset ICs

Features

  • Pin-to-pin compatible with LP3470
  • 5-Pin SOT-23 package
  • Open-drain RESET output
  • Programmable reset time-out period using an external capacitor
  • Immune to short VCC transients
  • ±1% Reset threshold accuracy (typical)
  • Ultra-low quiescent current (0.3 µA typical)
  • RESET valid down to VCC = 0.95 V

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Description

The LP3470A device is a micropower voltage supervisory circuit designed to monitor voltages within 1% of reset threshold overtemperature and is pin-to-pin compatible with existing TI device LP3470. The LP3470A device provides accurate, nano-power voltage monitoring with programmable delay.

The LP3470A asserts a reset signal whenever the VCC supply voltage falls below a reset threshold. The reset time-out period is adjustable using an external capacitor. Reset remains asserted for an interval (programmed by an external capacitor) after VCC has risen above the threshold voltage plus hysteresis.

For information on available reset threshold voltage options, see Mechanical, Packaging, and Orderable Information.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 3
Type Title Date
* Datasheet LP3470A Ultra Low Power Voltage Supervisor With Programmable Delay and 1% Reset Threshold datasheet (Rev. C) May 08, 2020
Application note Migrating Designs to LP3470A Low Iq Voltage Supervisor for Improved Power Supply (Rev. A) Apr. 16, 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019

Design & development

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SOT-23 (DBV) 5 View options

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