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PM8804 数据表(PDF) 20 Page - STMicroelectronics

部件名 PM8804
功能描述  PWM peak current mode controller for PoE and telecom systems
PDF  27 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

PM8804 数据表(HTML) 20 Page - STMicroelectronics

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Applications information
PM8804
20/27
DocID031629 Rev 1
Figure 12. Drivers' waveforms when a VCC fault is occurring
5.8
Thermal protection
The PM8804 thermal protection limit is set to 160 °C on the junction temperature and is
always active. When this threshold is exceeded, the PWM controller is switched-off
following the soft-stop method.
When the junction temperature goes below about 130 °C the converter will restart
automatically doing a startup phase and without need to recycle the input voltage.



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