BTS7040-1EPA
PROFET™ +2 12V
Protection
8
Protection
The BTS7040-1EPA is protected against Overtemperature, Overload, Reverse Battery (with ReverseON) and
Overvoltage. Overtemperature and Overload protections are working when the device is not in Sleep mode.
Overvoltage protection works in all operation modes. Reverse Battery protection works when the GND and VS
pins are reverse supplied.
8.1
Overtemperature Protection
The device incorporates both an absolute (TJ(ABS)) and a dynamic (TJ(DYN)) temperature protection circuitry for
the channel. An increase of junction temperature TJ above either one of the two thresholds (TJ(ABS) or TJ(DYN)
)
switches OFF the overheated channel to prevent destruction. The channel remains switched OFF until
junction temperature has reached the “Restart” condition described in Table 14. The behavior is shown in
Figure 22 (absolute Overtemperature Protection) and Figure 23 (dynamic Overtemperature Protection).
TJ(REF) is the reference temperature used for dynamic temperature protection.
IN
t
t
DEN
IL
IL(OVL)
t
TJ
TJ(ABS)
t
tIS(FAUL T)_D
IIS
IIS(SA T)
IIS(FAUL T)
IL / kILIS
t
t
In ter nal
count er
0
1
Protection_PROFET_OT_IRC.emf
Figure 22 Overtemperature Protection (Absolute)
Data Sheet
30
Rev. 1.10
2020-12-14
INFINEON [ Infineon ]
