Document Number: MC33385

Rev. 6.0, 11/2006

Freescale Semiconductor

Technical Data

© Freescale Semiconductor, Inc., 2007. All rights reserved.

There are no disclaimers required on the Final publication of a data sheet.

Quad Low-side Driver

The MC33385 is a Quad Low-side Driver fully protected switch. This

device is a general purpose Low-side Driver but has been especially

designed to operate in engine management applications as injector

driver or automotive gear box. It is interfaced directly with a

microcontroller for parallel control of the load and the individual output

diagnostic is done through a SPI. The diagnostic logic recognizes 4

failure types at each output stage: overcurrent, short to GND, open

load, and over-temperature.

Features

• RDSON of 250m

Ω per Output at 25°C

• Input CMOS Compatible

• Diagnostic through SPI

• Nominal Current of 2A per Output

• Current Limitation at 3A with Automatic Turn Off

• Output Internally Clamped at 50V typ for Inductive Load Drive

• Junction to Case Thermal Resistance of 4.4

°C/W

• Individual Output over Temperature Shutdown

• Pb-Free Packaging Designated by Suffix Code VW

Figure 1. MC33385 Simplified Application Diagram

LOW-SIDE DRIVER

DH SUFFIX

VW SUFFIX (PB-FREE)

98ASH70702A

20-PIN HSOP

33385

ORDERING INFORMATION

Device

Temperature

Package

MC33385DH/R2

-40°C to 125°C

20 HSOP

MC33385VW/R2

33385

VPWR

Voltage

Regulator

MCU

OUT1

OUT2

OUT3

OUT4

GND1-4

VCC

NCS

CLK

SDI

SDO

NRE

NON1

NON2

NON3

NON4