Analog and Mixed-Signal Fact Sheet
MC33800
Engine control integrated circuit (IC)
Applications
• Engine control
Fuel injection
Heated exhaust gas sensor monitoring and control
Load switching functions
Positioning and dithering of transmission valves
Solenoid, relay and valve actuation
PWM for motor speed control
• Body Electronics
Relay drivers
Interior/exterior lighting
LED Lighting
Overview
Powertrain system performance continues
to increase significantly. Semiconductor
components continue to meet this challenge
for tighter combustion control, direct injection
for diesel and gasoline and on chip knock
detection. The MC33800 is a combination
output switch and driver IC that may be used
in numerous powertrain applications. The IC
contains two programmable constant current
drivers, an octal low-side serial switch and
six external MOSFET gate pre-drivers. The IC
has over voltage, under voltage and thermal
protection. The drivers and switches, including
the external MOSFETs, have over current
MC33800 Simplified Application Drawing
33800
VBAT
VPWR
VDD
VPWR
CCD1_REC
CCD1_OUT
VPWR
VDD
2.5V
MCU
VCAL
CCD2_REC
RI_REF
CCD2_OUT
VBAT
REXT
MOSI
SI
SCLK
SCLK
CS
CS
MISO
SO
GPIO
DEFAULT
GPIO
EN
AN0
LRFDBK
OUT1
OUT8
{
VDSNS1
GD1
VSSNS123
GPIO/ETPU
P1,P3,P5,P7
GPIO/ETPU
PWM1
GPIO/ETPU
PWM6
{
GND
VSSNS456
VDSNS4
GD6
VBAT
Analog and Mixed-Signal
protection, off-state open load detection,
on-state shorted load detection and fault
annunciation via the serial peripheral interface
(SPI). These features, along with cost effective
packaging, make the MC33800 ideal for
Benefits
• Extensive diagnostic and fault reporting
Low Side Outputs
powertrain engine control applications.
• Lower power dissipation
Low Side RDS(on) max
Features
Freescale Semiconductor is a leading provider
for over 25 years of high-performance
products that use SMARTMOS™ technology
that combines digital, power and standard
analog functions. The company supplies
analog and power management ICs for
the automotive, consumer, networking and
industrial markets. Freescale’s analog and
power ICs complement our broad portfolio of
microcontrollers, microprocessors, ZigBee®
technology, digital signal processors, sensors,
development tools and support to offer
system solutions to customers.
• Eight switches – 2 are high current (OUTx)
• Two constant current drivers with
programmable dithering (CCDx)
• Six MOSFET pre-drivers (GDx)
• PWM generator for pre-drivers
• Ohmmeter function to measure HEGO
resistance
• Power supply/oscillator/band gap reference/
POR (power-on-reset)
• Low power sleep mode (~10µA)
• High Integration – reduced parts count
• Low pin count SPI MCU interfacing
Parametric Table
Performance
Typical Values
8
0.7Ω
Operating Voltage
5–36V
Control/Communication
SPI and Parallel
Orderable Part
Part Number
Temp.
Ranges
(TA)
MCZ33800EK/R2 -40°C to
+125°C
Package
54
SOICW-EP
• MCU SPI/parallel interface
• Diagnostic and error detection logic
EK SUFFIX
(Pb-FREE)
98ASA99334D
54-Pin SOICW-EP
• Over temperature, over voltage and over
current protection
Documentation
Document Number
Title
Description
MC33800
Data Sheet
Presents the specifications for this product
SG1002
Selector Guide
Analog and power management device comparison
SG187
Selector Guide
Analog and power management device comparison
AN2409
Application Note
Small outline integrated circuit (SOIC) fine
pitch package
Development Tools
Part Number
KIT33800EKEVME
Description
Evaluation board to demonstrate the key features of MC33800
Learn More:
Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners.
© Freescale Semiconductor, Inc. 2007
Document Number: MC33800FS
REV 2
For more information about Freescale's
Anaolg family products, please visit
www.freescale.com/analog.