MC33910G5AC/MC3433910G5AC
FUNCTIONAL DEVICE OPERATIONS
OPERATIONAL MODES
Table 7. Fault Detection Management Conditions
MONITORING(64)
BLOCK
FAULT
MODE
CONDITION
FALLOUT
RECOVERY
REG (FLAG,
INTERRUPT
BIT)
V
<3.0 V (typ)
SUP
All modes
-
Condition gone
VSR (BATFAIL, 0)
-
BATTERY FAIL
then power-up
In Normal mode, HS
> 19.25 V (typ) shutdown if bit
Condition gone, to
re-enable HSwrite to VSR (VSOV,3)
HSCR registers
IRQ low +
VSUP OVER-
VOLTAGE
V
SUP
SUP
(65)
ISR (0101)
HVSE=1 (reg MCR)
Normal, Normal
Request
IRQ low + ISR
(0101)
VSUP UNDER-
VOLTAGE
V
V
< 6.0 V (typ)
-
VSR (VSUV,2)
Power Supply
VDD UNDER-
VOLTAGE
(63)
All except Sleep
< 4.5 V (typ)
Reset
-
-
DD
Condition gone
Temperature >
115°C (typ)
IRQ low + ISR
(0101)
VDD OVER-TEMP
PREWARNING
-
VSR (VDDOT,1)
All except Low
Power modes
Temperature >
170°C (typ)
VDD shutdown,
Reset then Sleep
VDD OVER-
TEMPERATURE
-
-
RXD pin shorted to
GND or 5 V
LINSR,
(RXSHORT,3)
RXD PIN SHORT
CIRCUIT
LIN trans shutdown
LIN transmitter re-
enabled once the
LINSR (TXDOM,2)
conditionisgoneand
TXD PIN
PERMANENT
DOMINANT
Normal, Normal
Request
TXD pin low for more
than 1s (typ)
IRQ low + ISR
(0100)
LIN
(65)
LIN transmitter
shutdown
TXD is high
Temperature >
160°C (typ)
LIN DRIVER OVER-
TEMPERATURE
LINSR (LINOT,1)
Condition gone, to
All flags in HSSR
re-enable HS write to
are set
HIGH SIDE DRIVERS
OVER-
TEMPERATURE
Temperature >
160°C (typ)
Both HS thermal
shutdown
IRQ low + ISR
(0010)
(65)
HSCR reg
HS1 OPEN-LOAD
DETECTION
HSSR (HS1OP,1)
Current through HSx
< 5.0 mA (typ)
-
Normal, Normal
Request
High Side
HS2 OPEN-LOAD
DETECTION
HSSR (HS2OP,3)
Condition gone
-
HS1 OVER-
CURRENT
HSSR (HS1CL,0)
Current through HSx
tends to rise above
the current limit
60 mA (min)
HSx on with limited
current capability
60 mA (min)
HS2 OVER-
CURRENT
HSSR (HS2CL,2)
The MCU did not
command the device
to Normal mode
within the 150 ms
timeout after reset
NORMAL REQUEST
TIME-OUT EXPIRED
Normal Request
Reset
Reset
-
-
Watchdog
WD timeout or WD
clear within the
window closed
-
WATCHDOG
TIMEOUT
Normal
Normal
WDSR (WDTO, 3)
WD internal lower
precision timebase
150 ms (typ)
Connect WDCONF
to a resistor or to
GND
WDCONF pin is
floating
WDSR (WDERR, 2)
WATCHDOG ERROR
Notes
63.
When in Reset mode a VDD under-voltage condition combined with no V
under-voltage (VSUV=0) will send the device to Sleep mode.
SUP
64.
65.
Registers to be read when back in Normal Request or Normal mode depending on the fault. Interrupts only generated in Normal, Normal Request and Stop modes
Unless masked, If masked IRQ remains high and the ISR flags are not set.
33910
Analog Integrated Circuit Device Data
Freescale Semiconductor
32
FREESCALE [ Freescale ]
