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Active-Low-Reset-IC mit programmierbarer Ausgangsverzögerung und Reset-Schwelle von 1 %

LP3470 wird nicht für neue Designs empfohlen
Dieses Produkt ist weiterhin für Bestandskunden erhältlich. Neue Designs sollten ein alternatives Produkt erwägen.
Drop-In-Ersatz mit gegenüber dem verglichenen Baustein verbesserter Funktionalität
LP3470A AKTIV Rücksetz-IC, extrem geringer Stromverbrauch, Active-Low, mit programmierbarer Verzögerung und 1 % Re This device features improvements including lower IQ (0.3 μA), wider input voltage (10 V) and wider temperature range (-40°C to +125°C).

Produktdetails

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.63, 2.75, 2.83, 2.93, 3.08, 3.65, 4, 4.38, 4.63, 5.48 Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.016 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 0.5 Supply voltage (max) (V) 5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.63, 2.75, 2.83, 2.93, 3.08, 3.65, 4, 4.38, 4.63, 5.48 Reset threshold accuracy (%) 1 Iq (typ) (mA) 0.016 Output driver type/reset output Active-low, Open-drain Supply voltage (min) (V) 0.5 Supply voltage (max) (V) 5 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 85
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • 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 Over
    Temperature
  • Low Quiescent Current (16 µA typical)
  • Reset Valid Down to VCC = 0.5 V
  • 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 Over
    Temperature
  • Low Quiescent Current (16 µA typical)
  • Reset Valid Down to VCC = 0.5 V

The 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 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.

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

The 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 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.

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

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Technische Dokumentation

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Typ Titel Datum
* Data sheet LP3470 Voltage Supervisor With Programmable Delay and 1% Reset Threshold datasheet (Rev. G) PDF | HTML 27 Apr 2016

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  • Kontinuierliches Zuverlässigkeitsmonitoring
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