BTS7040-1EPA
PROFET™ +2 12V
Power Supply
6.2
Undervoltage on VS
Between VS(OP) and VS(UV) the undervoltage mechanism is triggered. If the device is operative (in Active mode)
and the supply voltage drops below the undervoltage threshold VS(UV), the internal logic switches OFF the
output channel.
As soon as the supply voltage VS is above the operative threshold VS(OP), if the input pin is set to “high” the
channel is switched ON again. The restart is delayed with a time tDELAY(UV) which protects the device in case the
undervoltage condition is caused by a short circuit event (according to AEC-Q100-012), as shown in Figure 14.
If the device is in Sleep mode and one input is set to “high”, the corresponding channel is switched ON if
VS > VS(OP) without waiting for tDELAY(UV)
.
VS
VS(OP)
VS(HYS)
VS(UV)
t
t
Channel
activation signal
VOUT
tDELAY(UV)
t
PowerSupply_UVRVS.emf
Figure 14 VS undervoltage behavior
Data Sheet
17
Rev. 1.10
2020-12-14
INFINEON [ Infineon ]
