TLE8203EXT Infineon Technologies, TLE8203EXT Datasheet - Page 23

• Manufacturer Part Number: TLE8203EXT
• Manufacturer: Infineon Technologies

Specifications of TLE8203EXT

• Operating Temperature (max): 150C
• Operating Temperature (min): -40C
• Pin Count: 36
• Mounting: Surface Mount
• Screening Level: Automotive
• Lead Free Status / RoHS Status: Supplier Unconfirmed

9
Output 7 is a high-side switch intended to drive ohmic loads like the heater of an exterior mirror.
9.1
9.1.1
If the high-side switch is turned on and the current rises above the shutdown threshold
shutdown delay time
delay time, the current is limited to
Figure 13
The output stage stays off and the error bit set until a status register reset is sent to the SPI or a power-on reset
is performed.
9.1.2
For the high-side switches, an open-load in OFF-state scheme is used as shown in
up by a current source
the voltage rises above this threshold, the open-load signal is set to high. This is equivalent to comparing the load
resistance to the value
reset or by a power-on reset.
The pull-up current can be switched on and off by the OpLxON bits. This bit should be set to LOW (i.e. pull-up
current switched off) if an output is used to drive LEDs because they may emit light if biased with the pull-up
current.
Final Data Sheet
Power-Output 7 (Mirror Heater Driver)
Protection and Diagnosis
Short Circuit of Output to Ground
Short Circuit Protection
Open Load
OUT 7
t
dSD
I
V
OpL
, the output transistor is turned off and the corresponding diagnosis bit is set. During the
OpL
. In OFF-state, the output voltage is monitored and compared to the threshold
/
I
short to GND
OpL
. The open load error bit is latched and can be reset by the SPI status register
I
SC
as shown in
I
OU T
Figure
23
I
I
SD
SC
13.
Power-Output 7 (Mirror Heater Driver)
t
d SD
Figure
10. The output is pulled
I
SD
Rev. 1.0, 2009-02-04
for longer than the
t
TLE 8203E
V
OpL
. If