BTS7040-1EPA
PROFET™ +2 12V
Protection
8.2
Overload Protection
The BTS7040-1EPA is protected in case of Overload or short circuit to ground. Two Overload thresholds are
defined (see Figure 24) and selected automatically depending on the voltage VDS across the power DMOS:
•
•
IL(OVL0) when VDS < 13 V
IL(OVL1) when VDS > 22 V
Overload threshold variation ("1" = IL(OVL) typ @ VDS = 5 V)
1.1
IL(OVL0)
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
IL(OVL1)
4
6
8
10
12
14
16
18
20
22
24
26
28
Drain Source Voltage (V)
Figure 24 Overload Current Thresholds variation with VDS
In order to allow a higher load inrush at low ambient temperature, Overload threshold is maximum at low
temperature and decreases when TJ increases (see Figure 25). IL(OVL0) typical value remains approximately
constant up to a junction temperature of +75 °C.
Data Sheet
32
Rev. 1.10
2020-12-14
INFINEON [ Infineon ]
