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SI3402-B-GMR

更新时间： 2024-11-21 15:51:11
品牌 Logo 应用领域
芯科 - SILICON 开关
页数 文件大小 规格书
22页 559K
描述
Switching Regulator, 0.68A, 350kHz Switching Freq-Max, QFN-20

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中文翻译

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SI3402-B-GMR 技术参数

是否Rohs认证： 符合生命周期：Active
包装说明：QFN-20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：1.68模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制技术：PULSE WIDTH MODULATION最大输入电压：5.5 V
最小输入电压：4.5 V标称输入电压：5 V
JESD-30 代码：S-XQCC-N20长度：5 mm
功能数量：1端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：0.68 A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）：260
座面最大高度：0.9 mm表面贴装：YES
切换器配置：BUCK最大切换频率：350 kHz
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.8 mm端子位置：QUAD
处于峰值回流温度下的最长时间：30宽度：5 mm
Base Number Matches：1

SI3402-B-GMR 数据手册

 浏览型号SI3402-B-GMR的Datasheet PDF文件第2页浏览型号SI3402-B-GMR的Datasheet PDF文件第3页浏览型号SI3402-B-GMR的Datasheet PDF文件第4页浏览型号SI3402-B-GMR的Datasheet PDF文件第5页浏览型号SI3402-B-GMR的Datasheet PDF文件第6页浏览型号SI3402-B-GMR的Datasheet PDF文件第7页 
Si3402-B  
FULLY-INTEGRATED IEEE 802.3-COMPLIANT  
POE PD INTERFACE AND LOW-EMI SWITCHING REGULATOR  
Features  
Pin-compatible replacement for  
the obsolete Si3402-A  
IEEE 802.3 standard-compliant  
solution, including pre-standard  
(legacy) PoE support  
Highly-integrated IC enables  
compact solution footprints  
Minimal external components  
Integrated diode bridges and  
transient surge suppressor  
Integrated switching regulator  
controller with on-chip power  
FET  
Incorporates switcher EMI-  
reduction techniques.  
Supports non-isolated and  
isolated switching topologies  
Comprehensive protection  
circuitry  
Transient overvoltage  
protection  
Ordering Information:  
Undervoltage lockout  
Early power-loss indicator  
Thermal shutdown protection  
Foldback current limiting  
Low-profile 5 x 5 mm 20-pin QFN  
RoHS-compliant  
See page 19.  
Pin Assignments  
Integrated dual current-limited  
hotswap switch  
5 x 5 mm QFN  
(Top View)  
Programmable classification  
circuit  
20  
19  
18  
17  
16  
15  
Applications  
1
2
3
4
EROUT  
SSFT*  
14  
13  
12  
11  
CT1  
Voice over IP telephones and  
adapters  
Wireless access points  
Security cameras  
Point-of-sale terminals  
Internet appliances  
Network devices  
VNEG  
(PAD)  
CT2  
VDD  
VPOSF  
ISOSSFT*  
SP1  
High power applications  
5
6
7
8
9
10  
Description  
The Si3402 integrates all power management and control functions required in a  
Power-over-Ethernet (PoE) powered device (PD) application. The Si3402  
converts the high voltage supplied over the 10/100/1000BASE-T Ethernet  
connection into a regulated, low-voltage output supply. The optimized architecture  
of the Si3402 minimizes the solution footprint, reduces external BOM cost, and  
enables the use of low-cost external components while maintaining high  
performance. The Si3402 integrates the required diode bridges and transient  
surge suppressor, thus enabling direct connection of the IC to the Ethernet RJ-45  
connector. The switching power FET and all associated functions are also  
integrated. The integrated switching regulator supports isolated (flyback) and non-  
isolated (buck) converter topologies. The Si3402 supports IEEE 802.3 Type 1  
(Class 3 and below) Powered Device applications. Standard external resistors  
connected to the Si3402 provide the proper IEEE 802.3 signatures for the  
detection function and programming of the requested power class. Startup circuits  
ensure well-controlled initial operation of both the hotswap switch and the voltage  
regulator. The Si3402 is available in a low-profile, 20-pin, 5 x 5 mm QFN package.  
The Si3402-B is a pin-compatible replacement of the obsolete Si3402-A. PCB  
layouts designed for Si3402-A can be reused with Si3402-B, but some component  
value changes are required.  
Note:  
Original pin names shown for compatibil-  
ity reasons, but SSFT, ISOSSFT, VPOSS,  
and VSS1 are not internally connected.  
Rev. 1.1 12/16  
Copyright © 2016 by Silicon Laboratories  
Si3402-B  
1234567...22

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SI3402-B-GMR 替代型号

型号 品牌 替代类型 描述 数据表
SI3402-A-GMR SILICON

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