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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