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Motorola : Semiconductors : Product Catalog : Analog : Power IC : Low Side Switches : MC33397

Page Contents
  • Features
  • Parametrics
  • Documentation
Other Info

MC33397 : Low side switch 6x 1.5 Ohm or 2x 0.5Ohm

The MC33397 is a versatile dual mode low-side switch that can be output-configured as two 0.3 ?? open drain outputs in the dual mode or as six 0.9 ?? open drain outputs in the hex mode (R DS(on)@25 ??C). Each open drain output has internal current limit and short circuit protection. Current limit is typically 1.5 Amps with 2.0 Amps maximum. The outputs can be input controlled via parallel inputs or the Serial Peripheral Interface (SPI). Three inputs provide parallel control while a serial 8-bit word provides SPI control of the outputs. Output fault detection capability includes "Off-State" open loads and "On-State" shorts-to- battery conditions. Individual output faults are latched into the fault register and serially shifted out during serial communication to the MC33397.The MC33397 has both over voltage and under voltage shutdown. A low quiescent current sleep state feature can be enabled (or disabled)on command via the SPI port.



MC33397 Features

  • Outputs clamped when switching inductive loads
  • Very low operational bias currents (typically less than 2 mA)
  • CMOS input logic compatible with 5.0 V logic levels
  • Load Dump robust (60 V transient at Vpwr)
  • Daisy chain operation of multiple devices possible
  • Switch outputs can be paralleled for higher currents


    MC33397 Parametrics

    Characteristics
    Package
    Channel Number
    High/Low
    Ron (mOhm)
    I LIM.
    I standby Max
    Protection
    Status Reporting
    Control
    Availability
    User configurable to be: 6x0.7 Ohm outputs OR 2x223mOhm outputs at Tj = 25C 24 SOICW, 32 QFN(7x7) 2 OR 6 L 2x300 or 6x700 1.5A 10uA Short circuit, Current limit, Temp sense SPI SPI NOW


    MC33397 Documentation

    Brochure
    ID Name Format Size K Rev # Date Last Modified Order Availability
    APDPAK/D Analog ICs Portfolio Package html 0 0 1/31/2002
    BR1567/D Analog ICs Integrated Solutions Technology pdf 5416 0 1/16/2002
    BR1568/D Analog ICs Integrated Solutions Packaging pdf 1411 0 1/11/2002
    BR1569/D Analog ICs Integrated Solutions Applications pdf 2363 0 1/11/2002

    Data Sheets
    ID Name Format Size K Rev # Date Last Modified Order Availability
    MC33397/D MC33397 Low side switch 6x 1.5 Ohm or 2x 0.5Ohm pdf 65 2/03/2000

    Fact Sheets
    ID Name Format Size K Rev # Date Last Modified Order Availability
    MC33397FS/D Analog Products MC33397 Fact Sheet pdf 504 0 1/16/2002

    Selector Guide
    ID Name Format Size K Rev # Date Last Modified Order Availability
    SG1002/D Analog SPS Sales Guide pdf 869 0 6/27/2002