參數(shù)資料
型號(hào): AG8100
廠商: Electronic Theatre Controls, Inc.
英文描述: Power-Over-Ethernet Module
中文描述: 供電以太網(wǎng)模塊
文件頁(yè)數(shù): 12/16頁(yè)
文件大?。?/td> 285K
代理商: AG8100
V1.0 Dec 2006
Data Sheet
Ag8100
Power-Over-Ethernet Module
correct signature. The thermal protection circuit will continue to disable the DC/DC
converter until the Ag8100 temperature has cooled sufficiently.
Because each application is different it is impossible to give fixed and absolute thermal
recommendations. However it is important that any enclosure used has sufficient
ventilation for the Ag8100 and a direct airflow if possible.
One simple method for drawing some of the heat away from the Ag8100 is shown in
Figure 9. Power planes connected to the +VDC, -VDC and Thermal Ground pins can be
used to draw heat away from the Ag8100. These power planes must be on the outer layer
of the PCB on the opposite side of the PCB to the Ag8100.
Figure 9: Power Plane Heatsink for Ag8100
Figure 10, Figure 11 & Figure 12 show the maximum ambient temperature under different
load conditions. These figure have been recorded in a sealed enclosure (in still air) using a
heater element to elevate the ambient temperature (within the enclosure).
9. Over-voltage
The Ag8100 may be damaged by voltage inputs greater than 80V. If protection from
electrostatic discharge (ESD) or other high voltage transients is required it is
recommended that an over-voltage clamping device is fitted between the VIN+ and the
VIN- pins. Typically an SMAJ58 will be sufficient.
Silver Telecom 2006
12
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