STTS752E datasheet(13/38 Pages) STMICROELECTRONICS

13 / 38 page

STTS75

Operation

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2.4

Interrupt mode

In Interrupt mode, the OS/INT output first becomes active when the measured temperature

exceeds the TOS 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,

TOS, or THYS) on the device. Once the OS/INT has been deactivated, it will only be

reactivated when the measured temperature falls below the THYS 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 TOS and THYS.

Figure 5.

OS output temperature response diagram

This assumes that a READ has occurred.

Note:

The STTS75 is configured to have a fault tolerance of 2 in this example.

(1)

Conversions

TOS

Temperature

THYS

Inactive

Active

Inactive

Active

OS Output - Comparator mode

OS Output - Interrupt mode

(1)

AI12224b

STTS752E 数据表(PDF) 13 Page - STMicroelectronics