V1.1 September 2016
Data Sheet
Ag9912M
Power-Over-Ethernet Module
Table of Contents
1. Features .......................................................................................................................1
2. Description....................................................................................................................1
Table of Contents .............................................................................................................2
Table of Figures ...............................................................................................................2
3. Ag9912M Product Selector...........................................................................................3
4. Pin Description .............................................................................................................4
4.1 Ag9912M ...............................................................................................................5
5. Functional Description ..................................................................................................6
5.1 Inputs.....................................................................................................................6
5.2 PD Signature .........................................................................................................6
5.3 Isolation .................................................................................................................6
5.4 Power Classification ..............................................................................................7
5.5 DC/DC Converter ..................................................................................................7
5.6 Output Adjustment.................................................................................................7
5.7 Typical Connections ..............................................................................................8
5.8 Additional Output Filtering .....................................................................................9
5.9 Start-up Power.....................................................................................................10
6. Typical Application......................................................................................................10
7. Operating Temperature Range...................................................................................11
8. Layout Consideration..................................................................................................13
9. Protection ...................................................................................................................13
10. EMC ........................................................................................................................14
11. Electrical Characteristics.........................................................................................15
11.1 Absolute Maximum Ratings1................................................................................15
11.2 Recommended Operating Conditions..................................................................15
11.3 DC Electrical Characteristics ...............................................................................15
12. Package ..................................................................................................................16
Table of Figures
Figure 1: Block Diagram ......................................................................................................3
Figure 2: Ag9912M SMT Package Format...........................................................................4
Figure 3: Typical System Diagram.......................................................................................6
Figure 4: Output Adjustment ................................................................................................7
Figure 5: Typical Connection Diagram.................................................................................8
Figure 6: Output Filtering .....................................................................................................9
Figure 7: Typical Application..............................................................................................10
Figure 8: Ag9912M Operating Profile ................................................................................11
Figure 9: Ag9912M Thermal Relief ....................................................................................12
Figure 10: Layout Consideration........................................................................................13
Figure 11: Ag9912M Input Protection ................................................................................13
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