bts50080a Infineon Technologies Corporation, bts50080a Datasheet - Page 25

• Manufacturer Part Number: bts50080a
• Description: Smart High-side Power Switch
• Manufacturer: Infineon Technologies Corporation

Figure 21
The accuracy of the provided current sense ratio ( k
Figure 22
Figure 22
The diagnosis signal can be switched off by a low signal at the diagnosis enable pin DEN. See
details on the timing between the DEN pin and the diagnosis signal
when no signal is provided at the pin DEN.
1) The curves show the behavior based on characterization data. The marked points are described in this Datasheet in
Datasheet
Section 7.5
for details. A typical resistor R
Timing of Diagnosis Signal in ON-state
Current sense ratio k
(Position 7.5.5).
0.9*I




V
V
IS 1
I
ILIS
IN
O N
I
IS
L
1)

IS
t
sIS (O N )

of 1 kΩ is recommended (see also
PD[
W\S
PLQ

normal operation
I
I
L1
IS1
t
ILIS
sIS (L C)

25
= I
I
I
L2
IS2
L

/ I
0.1*I
IS
I
IS(lim )
) depends on the load current. Please refer to
IS

I
IS
. Please note that the diagnosis is disabled,
t
sIS (o ff)
Smart High-Side Power Switch

$
Chapter
I
IS(L L)

t
t
t
t
6.7).
Diagnostic Functions
BTS50080-1EGA
V1.0, 2009-04-06
Figure 23
S witch On .e m f
for