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Freescale Semiconductor Electronic Components Datasheet

33385 Datasheet

Quad Low-side Driver

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Technical Data
Document Number: MC33385
Rev. 6.0, 11/2006
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.
33385
LOW-SIDE DRIVER
Features
• RDSON of 250mper Output at 25°C
• Supplied from the main 5V VCC
• 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
DH SUFFIX
VW SUFFIX (PB-FREE)
98ASH70702A
20-PIN HSOP
ORDERING INFORMATION
Device
MC33385DH/R2
MC33385VW/R2
Temperature
Range (TA)
-40°C to 125°C
Package
20 HSOP
VPWR
Voltage
Regulator
MCU
33385
VCC
NCS
CLK
SDI
SDO
NRE
NON1
NON2
NON3
NON4
OUT1
OUT2
OUT3
OUT4
GND1-4
Figure 1. MC33385 Simplified Application Diagram
There are no disclaimers required on the Final publication of a data sheet.
© Freescale Semiconductor, Inc., 2007. All rights reserved.


Freescale Semiconductor Electronic Components Datasheet

33385 Datasheet

Quad Low-side Driver

No Preview Available !

BLOCK DIAGRAM
BLOCK DIAGRAM
VCC
NON1
NON2
NON3
NON4
URES
RES
RES
URES
VCC
FR Reset
IRES
TRIGGER
S
R
SDI
VCC
CLK
NCS
VCC
IRES
Shift
Register
SDO
Failure
Register
(FR)
Charge Pump
DRIVER
dv/dt control
ON1
I-SCB filter
t-ISCB
ON1
I-OL filter
t-IOL
NON1
SCG filter
t-SCG
URES
Over-temp. detection
RES
Vref OSC
Under Voltage
Reset
GND
Reset
NRES
Oscillator
Figure 2. 33385 Simplified Internal Block Diagram
OUT1
OUT2
OUT3
OUT4
33385
2
Analog Integrated Circuit Device Data
Freescale Semiconductor


Part Number 33385
Description Quad Low-side Driver
Maker Freescale Semiconductor
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33385 Datasheet PDF





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