bts50080a Infineon Technologies Corporation, bts50080a Datasheet - Page 19

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

Figure 15
6.3
The internal logic permanently monitors the junction temperature of the output stage. In the event of an over
temperature (
switch off remains latched until the fault is acknowledged and reset by a falling edge at the DEN pin. See also
Chapter
Figure 16
6.4
The BTS50080-1EGA provides Infineon
latched switch off in PWM applications. To reset a latched protective switch off the fault has to be acknowledged
by a falling edge at the DEN pin. For a reset signal it’s recommended to set the DEN signal to HIGH for 20µs before
setting DEN to LOW for 20µs.
Please refer to
Datasheet
10mΩ
V
5uH
bat
6.4.
Short circuit
Over Temperature Protection
Over temperature detection
Infineon
T
j
Figure
>
T
jt
PROFET
GND
IN
) the output will switch off immediately. Please refer to
CIRCUIT
SHORT
®
for details.
V
INTELLIGENT LATCH - fault acknowledge and latch reset
bb
OUT
V
DEN
V
ϑ
IN
j
L
R

SC
short_circuit.emf
SC
latch
INTELLIGENT LATCH to avoid permanent resetting of a protective,
reset
19
L
SC
L-R.emf
µH
15
10
latch
5
0
reset
latch
0
ϑ
jt
Smart High-Side Power Switch
10
Applicable impedances
Figure 16
I
I
reset
L(SC)
L(SC)
20
V
V
latch
V
bb
bb
bat
= I
= I
< V
≥ V
for details.The protective
≤ V
for:
L(SC)High
L(SC)Low
30
Protection Functions
BTS50080-1EGA
bb(SCT)
bb(SCT)
bat(SC)
t
t
t
V1.0, 2009-04-06
mΩ
;
;
for
for
Over_Temp.emf
R
50
SC