™
PROFET + 24V
BTT6200-4ESA
Diagnostic functions
Vbat
VS
IIS(FAULT)
VBAT
OL
comp.
IS
OUT
GND
ZGND
VOL(OFF)
RSC_VS
RIS
Short circuit to Vs.vsd
Figure 27
Short circuit to battery detection in OFF electrical equivalent circuit
7.3.5
SENSE signal in case of overload
An overload condition is defined by a current flowing out of the DMOS reaching the current limitation and / or
the absolute dynamic temperature swing TJ(SW) is reached, and / or the junction temperature reaches the
thermal shutdown temperature TJ(SC). Please refer to Chapter 6.5 for details.
In that case, the SENSE signal given is by IIS(FAULT) when the diagnostic is selected.
The device has a thermal latch behavior, such that when the overtemperature or the exceed dynamic
temperature condition has disappeared, the DMOS is reactivated only when the IN is toggled LOW to HIGH. If
the DEN pin is activated, and DSEL pin is selected to the correct channel, the SENSE follows the output stage. If
no reset of the latch occurs, the device remains in the latching phase and IIS(FAULT) at the IS pin, even though the
DMOS is OFF.
7.3.6
SENSE signal in case of inverse current
In the case of inverse current, the sense signal of the affected channel will indicate open load in OFF state and
indicate open load in ON state. The unaffected channels indicate normal behavior as long as the IINV current
does not exceed the maximum value specified in Chapter 5.4.
Datasheet
34
Rev. 1.00
2019-03-09
INFINEON [ Infineon ]
