BTS5481SF Infineon Technologies, BTS5481SF Datasheet - Page 28

• Manufacturer Part Number: BTS5481SF
• Manufacturer: Infineon Technologies

Specifications of BTS5481SF

• Packages: PG-DSO-36
• Channels: 4.0
• Channel Mix: 2*4,5mohm+2*11mohm
• Led Mode: Yes
• Cranking Mode: No
• Pwm Engine Integrated: No

Figure 12
7.4
Each channel has its own temperature sensor. If the temperature at the channel exceeds the thermal shutdown
temperature
to reactivate the channel, the temperature at the output must drop by at least the thermal hysteresis Δ
over temperature latch must be cleared by SPI command HWCR.CL = 1
register OUTL is still set, the channel will be turned on immediately after the command HWCR.CL = 1
degradation of the device it is recommended to wait
Figure 13
7.4.1
Additionally, each channel has its own dynamic temperature sensor. The dynamic temperature sensor improves
short circuit robustness by limiting sudden increases in the junction temperature. The dynamic temperature sensor
turns off the channel if its sudden temperature increase exceeds the dynamic temperature sensor threshold
Δ
channel turns off and latches. The retry latch is cleared by SPI command HWCR.CL = 1
bit in the SPI register OUTL is still set, the channel will be turned on immediately after the command
HWCR.CL = 1
latch. For the condition
on the input pin or the bit in SPI register OUTL.
Please refer to
Data Sheet
T
j(SW)
. The number of automatic reactivations is limited by
Shut Down by Over Current due to Short Circuit Type 2
Over Temperature Protection
T
Shut Down by Over Temperature
Dynamic Temperature Sensor Protection
j(SC)
b
Figure 12
. To prevent degradation of the device it is recommended to wait
, the channel will switch off and latch to prevent destruction (also in case of
T
j (s tar t1)
n
+ ∆ T
I
L(Itrip)
<
OUTx
for details.
T
ERR
T
OUTx
IN
I
j(s tart 1 )
n
j(SW )
j (SC )
L(trip)
ERR
I
IN /
I
IS
retry
L
I
T
/
I
IS
L
j
the counter of automatic reactivations will be reset by every low to high transition
operation
normal
t > t
Latch OFF due to
over temperature
delay(trip)
over current
t
reset(CL)
28
over load
removed
n
(7.9.9) until resetting the latch.
retry
(7.9.7). If this number of retries is exceeded the
CL = 1
CurrentTrippingLowVDS .emf
CL = 1
Latch OFF due to
over temperature
b
operation
. If the input pin or the bit in the SPI
normal
t
reset(CL)
OverLoad.emf
CL = 1
t
t
t
t
SPOC - BTS5481SF
(7.9.9) until resetting the
b
Protection Functions
. If the input pin or the
t
t
t
t
t
Rev. 1.0, 2011-11-17
V
DD
= 0V). In order
b
.To prevent
T
j
and the