SP0000-89034 INFINEON [Infineon Technologies AG], SP0000-89034 Datasheet - Page 19

• Manufacturer Part Number: SP0000-89034
• Description: SPI Driver for Enhanced Relay Control
• Manufacturer: INFINEON [Infineon Technologies AG]

Figure 8
4.2.2
A temperature sensor for each channel causes an overheated channel n to switch off
immediately to prevent destruction. The behavior in case of over temperature can be
configured as follows:
The over temperature flag of the affected channel is cleared by a low-high transition of
the input signal.
4.2.3
In case of reverse polarity, the intrinsic body diode of the power transistor causes power
dissipation. The reverse current through the intrinsic body diode has to be limited by the
connected load. The
The over-temperature protection as well as other protective functions are not active
during reverse polarity.
Data Sheet
I
D(lim)
a) After cooling down, the channel is switched on again with thermal hysteresis ∆
b) The affected channel stays switched off until the over temperature flag is cleared.
IN
I
D
OLCR.OVL = 0
Over Temperature Protection
Reverse Polarity Protection
Over Load Behavior
t
d(fault)
V
dd
supply pin must be protected against reverse polarity externally.
L = 1
b
L = 0
SPI Driver for Enhanced Relay Control
19
t
t
b
I
D(lim)
IN
I
D
OLCR.OVL = 1
SPIDER - TLE 7232G
t
d(off)
Protection Functions
L = 1
V1.0, 2005-09-30
b
OverLoadTiming .emf
L = 0
t
t
b
T
j
.