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參數資料
型號: MAX5952CUAX+
廠商: Maxim Integrated
文件頁數: 33/50頁
文件大?。?/td> 1006K
描述: IC PSE CNTRLR FOR POE 36-SSOP
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 30
類型: 以太網供電控制器(PoE)
應用: 遠程外設(工業控制,相機,數據訪問)
內部開關:
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 36-BSOP(0.295",7.50mm 寬)
供應商設備封裝: 36-SSOP
包裝: 管件
High-Power, Quad, PSE Controller
for Power-Over-Ethernet
______________________________________________________________________________________   33
Setting DET_EN_/CLASS_EN_ to 1 (Table 18) enables
load detection/classification, respectively. Detection
always has priority over classification. To perform clas-
sification without detection, set the DET_EN_ bit low
and CLASS_EN_ bit high.
In manual mode, R14h works like a pushbutton. Set the
bits high to begin the corresponding routine. The bit
clears after the routine finishes.
When entering auto mode, R14h defaults to FFh. When
entering semi or manual modes, R14h defaults to 00h.
A reset or power-up sets R14h = AAAAAAAAb where A
represents the latched-in state of the AUTO input prior
to the reset.
Table 18. Detection and Classification Enable Register
ADDRESS = 14h
SYMBOL
BIT
R/W
DESCRIPTION
CLASS_EN4
7
R/W
Enable classification on port 4
CLASS_EN3
6
R/W
Enable classification on port 3
CLASS_EN4
5
R/W
Enable classification on port 2
CLASS_EN3
4
R/W
Enable classification on port 1
DET_EN4
3
R/W
Enable detection on port 4
DET_EN3
2
R/W
Enable detection on port 3
DET_EN2
1
R/W
Enable detection on port 2
DET_EN1
0
R/W
Enable detection on port 1
Table 19. Backoff and High-Power Enable Register
ADDRESS = 15h
SYMBOL
BIT
R/W
DESCRIPTION
BCKOFF4
3
R/W
Enable cadence timing on port 4
BCKOFF3
2
R/W
Enable cadence timing on port 3
BCKOFF2
1
R/W
Enable cadence timing on port 2
BCKOFF1
0
R/W
Enable cadence timing on port 1
CL_DISC (R17h[2]) and ENx_CL6 (R1Ch[7:4]) are used
to program the high-power mode. See Table 3 for details.
Setting BCKOFF_ to 1 (Table 19) enables cadence tim-
ing on each port where the port backs off and waits
2.2s after each failed load discovery detection. The
IEEE 802.3af standard requires a PSE that delivers
power through the spare pairs (midspan PSE) to have
cadence timing.
A reset or power-up sets R15h = 0000XXXXb where X
is the logic AND of the MIDSPAN and AUTO inputs.
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MAX5952CUAX+ 功能描述:熱插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5952CUAX+T 功能描述:熱插拔功率分布 Quad PSE Controller for POE RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
MAX5952DEAX+ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX5952DEAX+T 制造商:Maxim Integrated Products 功能描述:HIGH-POWER QUAD PSE CONTROLLER FOR - Tape and Reel
MAX5952DUAX+ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
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