TLE7368 Datasheet, PDF (33/39 Pages) Infineon Technologies AG – Next Generation Micro Controller Supply

TLE7368
Application Information
6
Application Information
Note: The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
C1
C2 CCP
Battery
Input
IN
from µC
from IGN
EN_µC
EN_IGN
to µC
RO_1
RT
to µC
RO_2
Keep Alive
Input
from µC
WDI
IN_STBY
to µC ^MON_STBY
INT.BIASING,
CHARGE PUMP
PWM
CONTROLLER
5.5V
TLE 7368
TEMPERATURE
SENSE
ENABLE
≥1
RESET
(WINDOW
COMPARATOR)
5 .0 V
TIMING
2 .6/3 .3 V
RESET
(WINDOW
COMPARATOR)
1 .5 V
WINDOW
WATCHDOG
STANDBY
MONITOR
1 .0/2 .6 V
GND_A
BST
5.5V
GND_P
SW
FB/L_IN
Q_T 1
5V, to sensor
Q_T 2
5V, to sensor
Q _LD O 1
5V
IN _LD O 2
Q _LD O 2
e.g. 3.3V
SEL_LDO2
DRV_EXT
FB_EXT
WDO
to µC
Q_STBY
e.g. 1.5V
SEL_STBY
e.g. 1.5V
Figure 10 Application Diagram, Example
Note: This is a very simplified example of an application circuit. The function must be verified in the real application.
Data Sheet
33
Rev. 1.1, 2007-11-08