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SI3482-A01-GM

更新时间： 2024-09-30 19:53:59
品牌 Logo 应用领域
芯科 - SILICON /
页数 文件大小 规格书
38页 382K
描述
Power Supply Support Circuit, Fixed, 1 Channel, 4 X 4 MM, ROHS COMPLIANT, QFN-24

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SI3482-A01-GM 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：QFN包装说明：4 X 4 MM, ROHS COMPLIANT, QFN-24
针数：24Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.81可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：S-XQCC-N24
长度：4 mm信道数量：1
功能数量：1端子数量：24
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：UNSPECIFIED封装代码：HVQCCN
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：0.8 mm最大供电电压 (Vsup)：3.6 V
最小供电电压 (Vsup)：2.7 V标称供电电压 (Vsup)：3 V
表面贴装：YES温度等级：INDUSTRIAL
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4 mmBase Number Matches：1

SI3482-A01-GM 数据手册

 浏览型号SI3482-A01-GM的Datasheet PDF文件第2页浏览型号SI3482-A01-GM的Datasheet PDF文件第3页浏览型号SI3482-A01-GM的Datasheet PDF文件第4页浏览型号SI3482-A01-GM的Datasheet PDF文件第5页浏览型号SI3482-A01-GM的Datasheet PDF文件第6页浏览型号SI3482-A01-GM的Datasheet PDF文件第7页 
Si3482  
POWER MANAGEMENT CONTROLLER  
Features  
Pin Assignments  
24-Pin QFN  
Enables use of smaller power  
supplies for up to 48-port PoE  
systems with Si3452 PSE interface  
ICs  
Can operate with or without a host  
Configuration save  
Supports classification-based and  
LLDP power negotiation  
Supports individual port priority and  
port configuration  
Supports Power supply status from  
up to 3 power supplies  
1
2
MISO  
SCK  
18  
17  
SDA  
SCL  
Pin-selectable SPI or UART interface24 pin Quad flat pack package  
3
4
GND  
VDD  
16  
15  
BAUD0  
BAUD1  
Pin-selectable UART data rate  
Fully-compliant with IEEE 802.3  
clause 33 for PoE including the  
802.3at amendment for higher power  
(30 W, category 2 ports)  
(4x4 mm)  
4x4 mm PCB footprint; RoHS  
complaint  
Extended operation range  
(–40 to +85 °C)  
Top View  
(Pads on Bottom of Package)  
5
6
RST  
14  
13  
BAUD2  
PSLCT  
RSVD  
Applications  
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  
Industrial automation systems  
Networked audio  
IP Phone Systems and iPBXs  
Metropolitan area networked WAPs,  
cameras, and sensors  
See "5. Pin Descriptions" on page 31.  
WiMAX, ASN/BTS, and CPE/ODU  
systems  
Multi-band, multi-radio WAPs  
Security and RFID systems  
Description  
The Si3452 is capable of delivering over 30 W per port, which means that, in a 24-  
or 48-port system, a very large power supply would have to be used to avoid  
overload. Typically, not all ports are used at full power; so, a smaller power supply  
in the range of 5 W per port can be used along with the Si3482 power  
management controller.  
The Si3482 is a power manager intended for use with the Si3452/3 Power over  
Ethernet (PoE) controllers for power management of up to 48 ports with three  
power sources.  
Use of the Si3482 power manager greatly simplifies system implementation of  
power management. The Si3482 power management controller is programmed  
via a SPI or UART interface to set the power supply capacity, the port power  
configuration (Category 1: 15.4 W, or high-power category 2: 30 W) ports, the port  
priority, the detection timing (Alternative A or Alternative B), and the fault recovery  
protocol. Once programmed, the configuration data can be saved, and the Si3482  
can work without host intervention. If desired, port and overall status information is  
available and continuously updated.  
The Si3482 uses the real-time overload and current monitoring capability of the  
Si3452 to manage provided power among up to 48 ports. Power management is  
selectable between grant-based or consumption-based in order to supply power  
to the greatest number of ports.  
In high-reliability systems, multiple power supplies are often connected to provide  
redundancy, which further increases the power supply requirements. The Si3482  
can manage up to three power supplies automatically enabling or disabling ports  
in priority order when required.  
Rev. 0.1 10/10  
Copyright © 2010 by Silicon Laboratories  
Si3482  
1234567...38

中文翻译

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SI3482-A01-GM 替代型号

型号 品牌 替代类型 描述 数据表
SI3482-A01-GMR SILICON

完全替代

 Power Supply Support Circuit, Fixed, 1 Channel, 4 X 4 MM, ROHS COMPLIANT, QFN-24

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