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PDF SB-106 Data sheet ( Hoja de datos )
| Número de pieza | SB-106 | |
| Descripción | ABS | |
| Fabricantes | National Semiconductor | |
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Hay una vista previa y un enlace de descarga de SB-106 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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Adaptive Braking Systems
(ABS)
National Semiconductor
System Brief 106
October 1990
Anti-Lock Braking System 1 Channel
TL F 10856 – 1
SYSTEM DESCRIPTION
ABS refers to a number of devices designed to avoid wheel-
lock during hard and panic braking conditions These sys-
tems have gained world attention only in the past five years
but even the simplest system provides huge gains over
electro-mechanical systems Legislation for ABS continues
throughout most of Europe and is expected to be mandated
in the U S as well
Four wheel systems provide more security with both steer-
ability and stability and are second only to engine control in
electronic content ABS systems are designed around sys-
tem hydraulics sensors and control electronics These sys-
tems are dependent on each other and the different system
components are interchangeable with minor changes in the
controller software
ANTI-LOCK
Anti-Lock systems are low cost with one wheel sensor on
the differential one control circuit and a system controller
for primarily light truck and front wheel drive passenger
cars This improves stability and only affects the rear
wheels
ANTI-SKID
Anti-Skid systems provide the next level by adding control
to all wheels and includes three wheel sensors three con-
trol circuits and the system controller This system provides
both steerability and stability during heavy braking meaning
that a driver can maintain full control of the vehicle This
level may soon become law in the U S
ADVANCED ANTI-SKID
This upgrade of the previous system requires four wheel
speed sensors four control circuits and a high performance
control system This system provides greatly increased con-
trol decreased stopping distances split surface control
(dissimilar road surfaces) and automatic parameter adjust-
ment (to match weather changes) Presently this system is
used only on very high performance vehicles
C1995 National Semiconductor Corporation TL F 10856
RRD-B30M105 Printed in U S A
1 page  
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BILL OF MATERIAL
Function
4 WHEEL ABS
CPU OBROM Microcontroller
Coprocessor Microcontroller
w EEPROM
w Watchdog
Sensor Conditioning Comparators
Voltage Regulator V R
Solenoid Driver Smart Power
Lamp Drivers High Side Switch
Relay Drivers High Side Switch
4 WHEEL ABS w TRACTION
CPU Microcontroller
Sensor Conditioning
w Watchdog
w Sensor Diagnostic
Odometer EEPROM
Voltage Regulator V R
Solenoid Drivers
Analog Switch
Preliminary
Description
16b mc
8b mC
Quad COMP
LDO Reg
5A Highside Driver
1A Highside Dr
1A Highside Dr
Diagc
16b Micro w AD
ASIC BLOCCS
EEPROM
LDO Volt Reg
ASIC BLOCCS
ASIC BLOCCS
NSC Part
HPC16083
COP8640
LM2901
LM2926
LM1956
LM1921
LM1951
HPC16164
LMB101X
NMC9306
LM2926
LMB102X
LMB103X
Other Mfg
Quantity
1
1
2
1
4
1
1
1
1
1
1
2
1
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet SB-106.PDF ] | |
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