BTS5461SF Infineon Technologies, BTS5461SF Datasheet - Page 28

• Manufacturer Part Number: BTS5461SF
• Manufacturer: Infineon Technologies

Specifications of BTS5461SF

• 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 15
The ERR-flag will be set during dynamic temperature sensor shut down. It can be reset by reading the ERR-flag.
If the channel is still in dynamic temperature sensor shut down, the ERR-flag will be set again. During the
automatic restart of the channel the ERR-flag can be cleared by reading the ERR-flag. It will be set again as soon
as the dynamic temperature sensor is activated again.
7.5
In reverse polarity mode, power dissipation is caused by the reverse ON-state resistance
as well as each ESD diode of the logic pins. The reverse current through the channels has to be limited by the
connected loads. The current through the sense pin IS, the logic power supply pin VDD, the SPI pins, input pins
and the limp home input pin has to be limited as well (please refer to the maximum ratings listed on
For reducing the power loss during reverse polarity Reversave
They are turned on to almost forward condition in reverse polarity condition, see parameter
Note: No protection mechanism like temperature protection or current protection is active during reverse polarity.
7.6
In the case of supply voltages between
the input or the OUTL register. Parameters are not warranted and lifetime is reduced compared to normal mode.
In addition to the output clamp for inductive loads as described in
available for over voltage protection for the logic and all channels.
Data Sheet
Dynamic Temperature Sensor Operations with latch due to reaching over temperature
Reverse Polarity Protection - Reversave
Over Voltage Protection
T
T
T
j (start1)
j(start 1)
j(s tartn) +
+ ∆T
V
+ ∆T
DS(Vtrip)
∆T
T
I
T
OUTx
L(trip)
j(start1)
j(SC)
j(res)
j(SW )
j(res)
ERR
IN /
V
DS
I
T
I
IS
L
j
Switch off by dynamic
temperature sensor
V
S(SC) max
* ERR-flag will be reset by standard
diagnosis readout during restart
over load
and
n = 1
Restart by dynamic
temperature sensor
V
28
S(CL)
T
jSW
the output transistors are still operational and follow
*
TM
TM
functionality is implemented for all channels.
n < n
Section
over load
removed
retry
Latch OFF due to
over temperature
CL = 1
operation
6.3, there is a clamp mechanism
normal
DeltaT_OT.emf
SPOC - BTS5461SF
t
t
t
t
t
t
R
Protection Functions
DS(REV)
Rev. 1.0, 2011-11-17
R
DS(REV)
of each channel
.
Page
9).
T
j(SC)