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UM1063 데이터시트(PDF) 2 Page - STMicroelectronics

부품명 UM1063
상세설명  The PM8803 is a highly integrated device embedding
PDF  32 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UM1063 데이터시트(HTML) 2 Page - STMicroelectronics

  UM1063 Datasheet HTML 1Page - STMicroelectronics UM1063 Datasheet HTML 2Page - STMicroelectronics UM1063 Datasheet HTML 3Page - STMicroelectronics UM1063 Datasheet HTML 4Page - STMicroelectronics UM1063 Datasheet HTML 5Page - STMicroelectronics UM1063 Datasheet HTML 6Page - STMicroelectronics UM1063 Datasheet HTML 7Page - STMicroelectronics UM1063 Datasheet HTML 8Page - STMicroelectronics UM1063 Datasheet HTML 9Page - STMicroelectronics Next Button
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Contents
UM1063
2/32
DocID018573 Rev 2
Contents
1
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Demonstration kit schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4
I/O connectors and test points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5
Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6
Power-up sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7
Test results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.1
Efficiency measurement with 3.3 V output . . . . . . . . . . . . . . . . . . . . . . . . 20
7.2
Efficiency measurements with 5 V output . . . . . . . . . . . . . . . . . . . . . . . . 21
7.3
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.3.1
Startup sequence from PoE/PoE+ injectors . . . . . . . . . . . . . . . . . . . . . . 23
7.3.2
Transition from PoE to auxiliary and auxiliary to PoE . . . . . . . . . . . . . . 24
7.3.3
Primary side MOSFET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3.4
Secondary side MOSFET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.3.5
Line transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.3.6
Load transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.3.7
Output ripple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31



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