参数资料
型号: SI3452D-B01-GM
厂商: Silicon Laboratories Inc
文件页数: 3/36页
文件大小: 0K
描述: IC POE CONTROLLER MIDSPAN 40QFN
特色产品: Si3452 Quad High-Voltage Port Controller for PoE and PoE+PSEs
标准包装: 50
控制器类型: 以太网供电控制器(POE)
接口: I²C
电源电压: 3 V ~ 3.6 V
电流 - 电源: 14mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-VFQFN 裸露焊盘
供应商设备封装: 40-QFN(6x6)
包装: 管件
配用: SMARTPSE24-KIT-ND - KIT EVAL REF 24PORT SPI/UART
其它名称: 336-1835-5
Si3452
Rev. 1.3
11
2. PSE System-Level Diagrams
Figure 2. 4-Port System with Direct Host Connection
3. PSE Application Diagrams
Figure 3. 4-Port Application Diagram Using dV/dt Disconnect and I2C Host Interface
Si3452
H
ig
h
Vo
lt
ag
e
In
te
rf
ac
e
I2C
OTP
RAM
Mixed Signal
Resources
PSE State
Machines
and
Measurement
Subsystem
Host
Controller
I2C
4
Ports
of
PoE+
INT
SDA
SCL
RST
Si8405 Digital
Isolator
Si3452
INT
RST
SCL
SDA
VREF
Si8405
Bidirectional
Isolator
Host / Switch
VDD
DGND
AGND
DET4
DET3
DET2
DET1
VOUT1
VOUT2
VOUT3
VOUT4
RBIAS
44.2 k
1%
VEE
PORT1
PORT2
PORT3
PORT4
To
Ma
gne
tics
GND12/34
VEE[4:1]
AD3
AD2
AD1
AD0
A
D
2
A
D
3
A
D
1
A
D
0
+3.3 V
Tie high
or low to
select
address
–54 V
1.1 V
(e.g. TLV431)
4x10 k
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