iso1h815 Infineon Technologies Corporation, iso1h815 Datasheet - Page 8

• Manufacturer Part Number: iso1h815
• Description: Coreless Transformer Isolated Digital Output 8 Channel 1.2a High-side Switch
• Manufacturer: Infineon Technologies Corporation

current has been exceeded. The initial peak short
circuit current limit is set to I
mode short circuit current the limit is set to I
operation leads to an overtemperature condition, a
second protection level (T
output into a low duty cycle PWM (selective thermal
shutdown with restart) to prevent critical chip
temperatures.
Figure 5
The following figures show the timing for a turn on into
short circuit and a short circuit in on-state. Heating up
of the chip may require several milliseconds,
depending on external conditions.
Figure 6
Preliminary Datasheet
IN
VOUT
T
DIAG
IN
VOUT
I
DIAG
L
J
Overtemperature detection
Turn on into short circuit, shut down by
overtemperature, restart by cooling
I
L(SCp)
Output short to GND
I
L(SCr)
j
L(SCp)
> 135°C) will change the
. During the repetitive
L(SCr)
. If this
t
t
t
t
t
t
t
t
8
Figure 7
3.4
The overtemperature detection information are OR-
wired in the common diagnostic output block. The
information is send via the integrated coreless
transformer to the input interface. The output stage at
pin DIAG has an open drain functionality combined with
a current source.
Figure 8
DIAG
IN
VOUT
I
DIAG
L
VCC
Short circuit in on-state, shut down
down by overtemperature, restart by
cooling
Common Diagnostic Output
Common diagnostic output
100µA
Normal
operation
Output short to GND
I
L(SCp)
CT
Functional Description
Version 1.0, 2009-05-28
I
L(SCr)
ISOFACE
ISO1H815G
Diagnostic
Common
Output
TM
t
t
t
t