參數(shù)資料
型號： SI3452D-B01-GM
廠商： Silicon Laboratories Inc
文件頁數(shù)： 1/36頁
文件大?。?/td> 0K
描述： IC POE CONTROLLER MIDSPAN 40QFN
特色產(chǎn)品： Si3452 Quad High-Voltage Port Controller for PoE and PoE+PSEs
標準包裝： 50
控制器類型： 以太網(wǎng)供電控制器（POE）
接口： I²C
電源電壓： 3 V ~ 3.6 V
電流 - 電源： 14mA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 40-VFQFN 裸露焊盤
供應商設備封裝： 40-QFN（6x6）
包裝： 管件
配用： SMARTPSE24-KIT-ND - KIT EVAL REF 24PORT SPI/UART
其它名稱： 336-1835-5
Rev. 1.3 1/12
Copyright 2012 by Silicon Laboratories
Si3452
Q UAD H IGH-VOLTAGE P ORT C ONTROLLER
FOR
P OE AND P OE+ PSE S
Features
Applications
Each Si3452 high-voltage port
controller supports four PSE power
interfaces
Programmable current limits for PoE
(15.4 W), PoE+ (30 W), and
proprietary systems (up to 40 W) per
port
I2C interface requires no external
MCU for easy, low-cost management
of 4 to 48 ports by the host system
Unique mixed-signal IC high-voltage
component integration simplifies
design, lowers power dissipation,
minimizes external BOM, and
reduces PCB footprint
Internal low-RON power FETs with
current-sense circuitry
Integrated transient voltage surge
suppressors
Proprietary dV/dt disconnect
sensing methods
Industrial (–40 to 85 °C) operating
temperature
Compact, 6×6 mm2, 40-pin QFN
RoHS-compliant package
Programmable architecture supports
IEEE 802.3af (PoE) and IEEE
802.3at (PoE+) PSEs
Programmable current limits for
PoE (350 mA) and PoE+
(600 mA), and custom limits to
850 mA
Per-port current and voltage
monitoring for sophisticated power
management and control
Power policing mode
Robust multi-point detection
Supports 1-Event and 2-Event
classification algorithms
Comprehensive, robust, fault-
protection circuitry
Supply undervoltage lockout
(UVLO)
Output current limit and short-
circuit protection
Foldback current limiting
Dual-threshold thermal overload
protection
Fault source reporting for
intelligent port management
Power over Ethernet Endpoint
switches and Midspans for IEEE Std
802.3af and 802.3at
Supports high-power PDs, such as:
Pan/Tilt/Zoom security cameras
802.11n WAPs
Multi-band, multi-radio WAPs
Security and RFID systems
Industrial automation systems
Networked audio
IP Phone Systems and iPBXs
Metropolitan area networked WAPs,
cameras, and sensors
WiMAX ASN/BTS and CPE/ODU
systems
Ordering Information:
Pin Assignments
40-Pin QFN
VEE
VEE1
AIN
RBIAS
VREF
AGND
AOUT
1
2
3
4
5
6
7
AGND 8
DGND
VDD
AD1
AD3
AD0
AD2
30
29
28
27
26
25
24
VO
U
T
4
NC
SD
A
NC
DE
T4
SC
L
G
ND3
4
11
12
13
14
15
16
17
DE
T3
18
VD
D
19
39
38
37
36
35
34
33
VO
U
T
1
IN
T
DE
T1
AD
0
RS
T
GN
D
1
2
AD
1
DE
T2
VEE4 10
NC 9
VEE3
22
RST
23
AD3
21
VO
U
T
3
20
32
VO
U
T
2
31
V
EE2
Si3452
(Top View)
40
Si3452
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參數(shù)描述
SI3452D-B01-GMR 功能描述:熱插拔功率分布 Quad PoE+ PSE Port Controller RoHS:否 制造商:Texas Instruments 產(chǎn)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
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