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參數(shù)資料
| 型號： | MAX5940A |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | IEEE 802.3af PD Interface Controller For Power-Over-Ethernet |
| 中文描述： | IEEE 802.3af PD接口控制器，用于以太網(wǎng)供電 |
| 文件頁數(shù)： | 11/15頁 |
| 文件大?。?/td> | 295K |
| 代理商： | MAX5940A |
M
IEEE 802.3af PD Interface Controller
For Power-Over-Ethernet
______________________________________________________________________________________
11
60V
68nF
UVLO
GND
V
EE
GATE
RCLASS
PGOOD
PGOOD
DC-DC CONVERTER
GND
-48V
WALL
ADAPTER
SUPPLY
R
CL
D1
GND
V+
VREG
OUT
1
2
3
4
5
6
7
8
C
OUT
C
GATE
R
DISC
25.5k
SS_SHDN
MAX5014
MAX5940B
LOAD
R3
10k
Typical Application Circuits (continued)
Figure 5. Adding Wall Adapter Input Supply (Wall Adapter Supply Takes Precedence Over Power-Over-Ethernet)
Application Circuit 2
Diode D1 prevents the power-over-ethernet to back
drive the wall adapter. Whenever the wall adapter
power is available, the GATE is pulled low to pinch off
the power-over-ethernet. R3 provides the GATE current
flow path. The wall adapter power pollutes the discov-
ery signature, preventing PSE from detecting this PD.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX5940B | IEEE 802.3af PD Interface Controller For Power-Over-Ethernet |
| MAX5940A-MAX5940B | Quadruple 2-Input Positive-NAND Buffers 14-CDIP -55 to 125 |
| MAX5940AESA | IEEE 802.3af PD Interface Controller For Power-Over-Ethernet |
| MAX5940BESA | IEEE 802.3af PD Interface Controller For Power-Over-Ethernet |
| MAX5941B | IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5940ACSA+T | 制造商:Maxim Integrated Products 功能描述:IEEE 802.3AF PD INTERFACE CONTROLLER FOR POWER-OVER-ETHERNET - Tape and Reel |
| MAX5940AESA | 功能描述:輸入/輸出控制器接口集成電路 RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| MAX5940AESA+ | 功能描述:輸入/輸出控制器接口集成電路 IEEE 802.3af PD Int Controller RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| MAX5940AESA+T | 功能描述:輸入/輸出控制器接口集成電路 IEEE 802.3af PD Int Controller RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| MAX5940AESA-T | 功能描述:輸入/輸出控制器接口集成電路 RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
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