参数资料
型号: MAX5965BUAX+T
厂商: Maxim Integrated
文件页数: 34/54页
文件大小: 1334K
描述: IC PSE CTRLR FOR POE 36SSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1,000
类型: 以太网供电控制器(PoE)
应用: IP 电话,LAN 网络供电,网络路由器和交换机
内部开关:
电源电压: 2.4 V ~ 3.6 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 36-BSOP(0.295",7.50mm 宽)
供应商设备封装: 36-SSOP
包装: 带卷 (TR)
High-Power, Quad, Monolithic, PSE Controllers
for Power over Ethernet
34   ______________________________________________________________________________________
Setting DCD_EN_ to 1 enables the DC load disconnect
detection feature (Table 17). Setting ACD_EN_ to 1
enables the AC load disconnect feature. If enabled, the
load disconnect detection starts during power mode
and after startup when the corresponding PGOOD_ bit
in register R10h (Table 14) goes high. A reset sets
R13h = 0000AAAAb where A represents the latched-in
state of the AUTO input prior to the reset.
Table 16a. Operating Mode Register
ADDRESS = 12h
SYMBOL
BIT
R/W
DESCRIPTION
P4_M1
7
R/W
MODE[1] for port 4
P4_M0
6
R/W
MODE[0] for port 4
P3_M1
5
R/W
MODE[1] for port 3
P3_M0
4
R/W
MODE[0] for port 3
P2_M1
3
R/W
MODE[1] for port 2
P2_M0
2
R/W
MODE[0] for port 2
P1_M1
1
R/W
MODE[1] for port 1
P1_M0
0
R/W
MODE[0] for port 1
Table 17. Load Disconnect Detection Enable Register
ADDRESS = 13h
SYMBOL
BIT
R/W
DESCRIPTION
ACD_EN4
7
R/W
Enable AC disconnect detection on port 4
ACD_EN3
6
R/W
Enable AC disconnect detection on port 3
ACD_EN2
5
R/W
Enable AC disconnect detection on port 2
ACD_EN1
4
R/W
Enable AC disconnect detection on port 1
DCD_EN4
3
R/W
Enable DC disconnect detection on port 4
DCD_EN3
2
R/W
Enable DC disconnect detection on port 3
DCD_EN2
1
R/W
Enable DC disconnect detection on port 2
DCD_EN1
0
R/W
Enable DC disconnect detection on port 1
Table 16b. Operating Mode Status
MODE
DESCRIPTION
00
Shutdown
01
Manual
10
Semi-auto
11
Auto
The MAX5965A/MAX5965B use 2 bits for each port to
set the mode of operation. Set the modes according to
Table 16a and 16b.
A reset sets R12h = AAAAAAAAb where A represents
the latched-in state of the AUTO input prior to the reset.
Use software to change the mode of operation.
Software resets of ports (RESET_P_ bit, Table 23) do
not affect the mode register.
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