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| 型号： | SMARTPSE24-KIT |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 1/36页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL REF 24PORT SPI/UART |
| 标准包装： | 1 |
| 主要目的： | 电源管理，以太网供电（POE），PSE |
| 已用 IC / 零件： | Si3452，Si3482，Si3500 |
| 已供物品： | 板，线缆，CD |
| 相关产品： | SI3482-A01-GM-ND - IC CTLR POE 24-48PORT PSE 24-QFN 336-1830-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1835-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1829-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1831-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1834-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1844-5-ND - IC POE SWITCH PWR OVER LAN 20QFN 336-1833-5-ND - IC POE CONTROLLER MIDSPAN 40QFN 336-1832-5-ND - IC POE CONTROLLER MIDSPAN 40QFN |
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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:
See page 31.
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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