mc33789 Freescale Semiconductor, Inc, mc33789 Datasheet - Page 31

• Manufacturer Part Number: mc33789
• Description: Airbag System Basis Chip Sbc With Power Supply And Psi5 Sensor Interface
• Manufacturer: Freescale Semiconductor, Inc

Analog Integrated Circuit Device Data
Freescale Semiconductor
RESET
Interface
AOUT
Internal
Resets
External
Reset
Reset
Driver
Logic
SPI
SPI
Interface
Figure 18. Linear Regulators and Watchdog Block Diagram
SPI
SPI
Watchdog
Control
PPT
Sleep
Analog MUX
Reset
C ontrol through SPI
Figure 17. Sync Supply Block Diagram
OV
U V
V
CC
OV
U V
V
DD
OV
U V
Control
1/K
WAKE
Sleep
Mode
V
BG
5
V
Bandgap
SYNC
Charge
Control
Pump
Control
V
V
V
Regulator
PW R
BU C K
C C
V
D D
V
V
BU C K
RE F
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
V
V
C C
BUCK
V
D D
CPGND
VSYNC
CPC1
CPC2
FUNCTIONAL DESCRIPTION
VCCDRI
VCC
VDD
C
C
SYNC
CP
V
D D
2.5V
V
BU C K
5V
V
33789
C C
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