Datasheet Texas Instruments UC3903DW

ManufacturerTexas Instruments
SeriesUC3903
Part NumberUC3903DW
Datasheet Texas Instruments UC3903DW

Quad Supply and Line Monitor 18-SOIC 0 to 70

Datasheets

Quad Supply and Line Monitor datasheet
PDF, 796 Kb, Revision: A, File published: Aug 26, 2008
Extract from the document

Prices

Status

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityYes

Packaging

Pin18
Package TypeDW
Industry STD TermSOIC
JEDEC CodeR-PDSO-G
Package QTY40
CarrierTUBE
Device MarkingUC3903DW
Width (mm)7.5
Length (mm)11.5
Thickness (mm)2.35
Pitch (mm)1.27
Max Height (mm)2.65
Mechanical DataDownload

Parametrics

# of Supplies Monitored4
Iq(Typ)7000 uA
Monitored Voltage 1 (typ)(Nom)Adjustable V
Monitored Voltage 2 (typ)(Nom)Adjustable V
Operating Temperature Range0 to 70 C
Output Driver Type / Reset OutputActive-low,Open-drain
Package GroupSOIC
Package Size: mm2:W x L18SOIC: 119 mm2: 10.3 x 11.55(SOIC) PKG
RatingCatalog
Reset Threshold Accuracy5 %
Special FeaturesNegative Voltage Monitoring,Over Voltage Sense
Threshold Voltage 1(Typ)1.8 V
Threshold Voltage 2 (typ)(Typ)Adjustable V
Time DelayProgrammable ms
VCC(Max)40 V
VCC(Min)8 V
Watchdog Timer WDINone sec

Eco Plan

RoHSCompliant

Application Notes

  • DN-33 Optocoupler Feedback Drive Techniques Using the UC3901 and UC3903
    PDF, 45 Kb, File published: Sep 5, 1999
    A variety of low-cost supervisory ICs contain the required building blocks for the more demanding optocoupler feedback drive applications. Initially developed to address other specific power supply tasks several control ICs excel in the role as precision optocoupler control and drivers. This design note describes a basic optocoupler driver circuit and also a more advanced optocoupler drive circ
  • Optimizing Resistor Dividers at a Comparator (Rev. A)
    PDF, 120 Kb, Revision: A, File published: Jun 3, 2013
  • Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs
    PDF, 130 Kb, File published: Sep 19, 2011

Model Line

Series: UC3903 (5)

Manufacturer's Classification

  • Semiconductors > Power Management > Supervisor and Reset IC
EMS supplier