Overview
The body control system showcases new
and innovative Freescale Semiconductor
devices in a powerful, reliable solution with
enhanced diagnostic capabilities.
These innovative products allow automotive
engineers to design faster, more cost-
efficiently, and to make an easy transition
from mechanical to electrical systems.
Analog SMARTMOS™ Power ICs surround
the MCU in body control systems with load
control, contact monitor interface, power
management and connectivity devices.
Diagnostic
LIN Sub Bus
CAN Low Speed
CAN Low Speed
Battery
Supply, Multiplexing
MC33742
MC33989
Reg 1
Reg 2
HV IN Reset / WD
SPI
Ignition
Doors
HS-CAN
Physical Interface
Reset
Quad High
Side Lamp
Driver
8 Relay or
LED
Driver
MC33388
LS-CAN
Physical Interface
LIN Physical Interface
RS232
MC33972
MC33975
MC33993
Contact
Monitor
SPI
CAN
CAN
5 V (Aux)
SCI
SCI
5 V (Aux)
5 V (Aux)
GPIO
22
Power Driver
MC33388
Switch Inputs:
Left Up / Down*
Door / Lock
Flasher / Warning
Highbeam / Lowbeam
Running Lamps*
Illumination Off / Auto
Ignition
*Switch Monitor Only
SPI
GPIO
GPIO
MC33288A
MC33886
MC33887
MC34922
Dual High
Side Driver
Motor Driver
Loads
Lamp:
Highbeam
Lowbeam
Reverse Light
Brake Light
Turn Light
Interior Light
Position Light
Wake Up
4
8
Motor:
Lock
Antenna
Washer
Pumps
Window
Lift
Sunroof
Seat
Wipers
x2
6 A
MC9S12DP256
5 V (Aux)
5 V (MCU Supply)
10 to 60 W
SPI
GPIO
MC33486A
Dual High
Side for
H-Bridge
20 A
MC33399
MC33661
BODY CONTROL
BLOCK DIAGRAM
Key Benefits
> Enhances diagnostic
capabilities
> Promotes rapid design
> Easy mechanical to electrical
system transition
> Allows cost-efficient designs
Body Electronics
Body Control
SG2002-2
Design Challenges
Automotive body control presents
interesting design challenges to the
system engineer. These challenges
include jump start, reverse battery, high
current control, and large I/O
requirements. Freescale
Semiconductor's Analog products help
solve these automotive-specific issues
with integrated automotive capabilities.
These new solutions provide the control
functions and advanced diagnostic
capabilities unavailable in older
mechanical systems.
Freescale Semiconductor Solution
Freescale Semiconductor's leading-edge
body control IC solutions are “smart”
products providing designers with
superior diagnostic abilities, high
reliability, and reduced part counts.
These IC system capabilities are
optimized for rugged automotive
environments. Freescale
Semiconductor's first advanced, high
performance HC12, 16-bit MCU with
automotive Flash and six multiplex
network modules is the master
governing unit in a system where all ICs
have intelligence. Designed to
demonstrate the expanding demands of
body control architecture, the body
control system includes a hub for two
CAN networks, a LIN sub-bus, a short
range/RF receiver, high current silicon
switches, and up to 30 switch inputs.
This reliable, low-power solution has
self-protected switching devices meeting
the high power demands of lighting.
Freescale Ordering Information
Note
Part Number Product Highlights Additional Information
MC33288A Solid State Relay for High-Current Incandescent Lamps www.freescale.com/analog
MC33388 Fault Tolerant CAN Interface
MC33399 Local Interconnect Network (LIN) Physical Layer
MC33486A Dual High-Side for H-Bridge
MC33661 eLIN—Enhanced LIN Physical Layer (Local Interconnect Network)
MC33742 System Basis Chip with Enhanced High-Speed CAN
MC33886 H-Bridge Driver (5.2 A)
MC33887 H-Bridge Driver with Sleep Mode (5.2 A)
MC33972 22 Input Multiple Switch Detection Interface with Suppressed Wake-Up
MC33975 22 Input Multiple Switch Detection Interface with Higher Wetting Current
MC33989 System Base Chip with High-Speed CAN
MC33993 22 Input Multiple Switch Detection Interface
MC34922 Dual Power H-Bridge (4.0 A)
MC9S12DP256 16-Bit Microcontroller www.freescale.com
Note: Search on the listed part number.
SG2002-3
Development Tools
Note
Tool Type Product Name Vendor Description Additional Information
Software CodeWarrior development systems Metrowerks www.metrowerks.com
Software Low-cost debugger P&E Microcomputer Systems www.pemicro.com
Software Flash programming tools P&E Microcomputer Systems www.pemicro.com
Software In-circuit emulator Nohau Corporation www.nohau.com
Hardware and Development Kits Contact vendor Axiom Manufacturing www.axman.com
Hardware and Development Kits Contact vendor Diavarre www.diaverre.com
Hardware and Development Kits Contact vendor Elektronikladen www.elektronikladen.de
Hardware and Development Kits Contact vendor Metrowerks www.metrowerks.com
Hardware and Development Kits Contact vendor P&E Microcomputer Systems www.pemicro.com
Hardware and Development Kits Contact vendor Technological Arts www.technologicalarts.com
Evaluation Kit KIT33388DEVB Metrowerks Fault Tolerant CAN Interface www.metrowerks.com
Evaluation Kit KIT33661DEVB Metrowerks LIN Enhanced Physical Interface
Evaluation Kit KIT33886DHEVB Metrowerks H-Bridge Integrated Circuit
Evaluation Kit KIT33887DWBEVB Metrowerks 225 mΩ 150ºC and Sleep Mode
and Current Sense
Evaluation Kit KIT33989DWEVB Metrowerks System Basis Chip with High-
Speed CAN
Evaluation Kit KIT33993DWBEVB Metrowerks 22 Input Multiple Switch
Detection Interface
Evaluation Kit KIT34922PNAEVB Metrowerks Dual H-Bridge with Load Current
Feedback
Note: Search on listed product name.
Related Documentation
Note
Document Number Description Additional Information
APDPAK Analog IC Pitch Pack www.freescale.com
BR1871 BR1871 Automotive Body Control
SG187 Automotive Product Selector Guide
SG1002 Analog Selector Guide
Note: Search on listed document number.
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. 2005. All rights reserved.
SG2002
REV 3
6/2005
Learn More: Contact the Technical Information Center at +1-800-521-6274 or +1-480-768-2130.
For more information about Freescale products, please visit www.freescale.com.
June2005
Notes
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