33912 Datasheet, PDF (43/47 Pages) Freescale Semiconductor, Inc – LIN System Basis Chip with DC Motor Pre-driver and Current

TYPICAL APPLICATION
LOGIC COMMANDS AND REGISTERS
TYPICAL APPLICATION
The 33912 can be configured in several applications. The figure below shows the 33912 in the typical Slave Node Application.
C4
C3
VDD
IRQ
RST
TIMER
SPI
MCU
A/D
SCI
A/D
VDD
IRQ
Interrupt
Control Module
LVI, HVI, HTI, OCI
RST
Reset
Control Module
LVR, HVR, HTR, WD,
PWMIN
MISO
MOSI
SCLK
CS
ADOUT0
RXD
TXD
ADOUT1
Window
Watchdog Module
SPI
&
CONTROL
Wake Up Module
LIN Physical Layer
C2
C1
V _BAT
D1
Voltage Regulator
AGND
5V Output Module
Low Side Control
Module
PGND
High Side Control
Module
Chip Temp Sense Module
VBAT Sense Module
Analog Input Module
Digital Input Module
Current Sense Module
C5
HVDD
LS1
LS2
Hall Sensor Supply
HB Type Relay
Motor Output
R1
HS1
HS2
VSENSE
R2
L1
R3
L2
R4
L3
Analog Input
R5
L4
Analog Input
LIN
ISENSEH
R6
ISENSEL
LIN
C6
R7
Typical Component Values:
C1 = 47µF; C2 = C4 = 100nF; C3 = 10µF; C5 = 4.7µF; C6 = 220pF
R1 = 10kΩ; R2 = R3 = 10kΩ; R4 = R5 = 33kΩ; R6 = 20Ω; R7 = 20kΩ-200kΩ
Recommended Configuration of the not Connected Pins (NC):
Pin 28 = this pin is not internally connected and may be used for PCB routing
optimization.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33912
43