Datasheet

STTS75 Operation
Doc ID 13298 Rev 11 13/41
2.4 Interrupt mode
In Interrupt mode, the OS/INT output first becomes active when the measured temperature
exceeds the T
OS
value a consecutive number of times equal to the FT value in the
configuration register. Once activated, the OS
/INT can only be cleared by either putting the
STTS75 into shutdown mode or by reading from any register (temperature, configuration,
T
OS
, or T
HYS
) on the device. Once the OS/INT has been deactivated, it will only be
reactivated when the measured temperature falls below the T
HYS
value a consecutive
number of times equal to the FT value. Figure 5 illustrates typical OS
output temperature
response for STTS75 configured to have a fault tolerance of 2. The interrupt/clear process is
cyclical between T
OS
and T
HYS
.
Figure 5. OS
output temperature response diagram
1. This assumes that a READ has occurred.
Note: The STTS75 is configured to have a fault tolerance of 2 in this example.
(1)
Conversions
T
OS
Temperature
T
HYS
Inactive
Active
Inactive
Active
OS Output - Comparator mode
OS Output - Interrupt mode
(1)(1)
AI12224b