BTS52352GXT Infineon Technologies, BTS52352GXT Datasheet - Page 20

• Manufacturer Part Number: BTS52352GXT
• Manufacturer: Infineon Technologies

Specifications of BTS52352GXT

• Switch Type: High Side
• Power Switch Family: BTS5235-2G
• Input Voltage: -5 to 10V
• Power Switch On Resistance: 45mOhm
• Output Current: 3.3A
• Number Of Outputs: Dual
• Mounting: Surface Mount
• Supply Current: 3.6mA
• Package Type: DSO
• Operating Temperature (min): -40C
• Operating Temperature (max): 150C
• Operating Temperature Classification: Automotive
• Pin Count: 20
• Power Dissipation: 1.4W
• Lead Free Status / RoHS Status: Compliant

As a result open load and over load including over temperature can be differentiated in ON-state.
Consideration must be taken in the selection of the sense resistor in order to distinguish nominal currents from the
overload/short circuit fault state. A potential of 5 V at the sense pin can be achieved with a big sense resistor even
with currents being much smaller than the current limitation.
Figure 16
7.2
Details about timings between the diagnosis signal I
can be found in
necessary.
Figure 17
For calculation of the pull-up resistor, just the external leakage current I
V
I
current from out to ground at
in off state must be ensured. To reduce the stand-by current of the system, an open load resistor switch ( S
recommended.
Data Sheet
R
leakage
OUT(OL)
OL
=
defines the leakage current in the complete system e.g. caused by humidity. There is no internal leakage
V
---------------------------------------------------------- -
has to be taken into account.
bb(min)
Timing of Diagnosis Signal in Over Load Condition
OFF-State Diagnosis
Timing of Diagnosis Signal in OFF-state
I
–
leakage
V
V
OUT
Figure
OUT(OL,max)
IN
I
IS
IN
I
I
IS
L
ON
OFF
Open Load, pull-up resistor active
17. For open load diagnosis in OFF-state an external output pull-up resistor ( R
over load (current limitation)
ON
t
BTS5235-2G.
d(fault)
t
sIS(OVL)
V
IS(fault)
V
V
IS(fault)
bb(min)
/ R
/ R
S
OFF
S
is the minimum supply voltage at which the open load diagnosis
IS
and the output voltage V
20
over temperature
pull-up resistor
I
L(LIM)
inactive
leakage
t
s(fault)
Smart High-Side Power Switch
OFF
and the open load threshold voltage
OUT
and load current I
OverLoad.emf
t
t
SwitchOff.emf
t
t
t
Rev.1.1, 2007-09-01
BTS5235-2G
L
in OFF-state
Diagnosis
OL
OL
) is
) is
(4)