E981.03 Datasheet, PDF (31/51 Pages) ELMOS Semiconductor AG – Autonomous MAC and individual physical address

KNX/ EIB TRANSCEIVER
PRODUCTION DATA - JAN 15, 2015
E981.03
8.3 Temperature Supervision
The temperature supervision is necessary for protection in case of high power dissipation in failure cases, for example
short circuit of supply outputs.
Figure 15. Over-temperature scenario
In case of over temperature
• the warning signal OTEMP for the host controller is
generated
• in Normal Mode a State.indication service is sent
to the host controller once at the beginning of over
temperature situation
In case of further temperature rising power consuming
blocks are switched off (shutoff phase):
• no further transmission at KNX (KNX transmitter is
disabled) in both Analog and Normal Modes
• V20 and VCC supplies are switched off
• SAVE is activated
• RESET is activated when VCC is lower than the reset
limit – not depending on temperature.
When E981.03 temperature is lower than the limit:
• VCC and V20 supplies are switched on again
• SAVE_N is deactivated
• KNX transmitter is enabled
Elmos Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
Elmos Semiconductor AG
Data Sheet
QM-No.: 25DS0046E.03
31/51