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| 型号： | SI3402ISO-EVB |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL POE ISOL FOR SI3402 |
| 标准包装： | 1 |
| 主要目的： | 特殊用途 DC/DC，以太网供电（POE） |
| 输出及类型： | 1，隔离 |
| 输出电压： | 5V |
| 输入电压： | 44 ~ 57 V |
| 稳压器拓扑结构： | 回扫 |
| 频率 - 开关： | 350kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板，CD |
| 已用 IC / 零件： | Si3402 |
| 其它名称： | 336-1828 |
Si3402
F U L LY - I N T E G R A T E D 8 0 2 . 3 - C O M P LI A N T P O E P D I N T E R F A C E
AND L OW -EMI S WITCHING R EGULATOR
Features
?
?
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
?? Integrated dual current-limited
?
?
?
Incorporates switcher EMI-
reduction techniques.
Supports non-isolated and
isolated switching topologies
Comprehensive protection
circuitry
?? Transient overvoltage
protection
?? Undervoltage lockout
?? Early power-loss indicator
?? Thermal shutdown protection
?? Foldback current limiting
Ordering Information:
See page 18.
hotswap switch
?
Low-profile 5 x 5 mm 20-pin QFN
Pin Assignments
?
Programmable classification
circuit
?
RoHS-compliant
5 x 5 mm QFN
(Top View)
Applications
?
Voice over IP telephones and
?
Point-of-sale terminals
20
19
18
17
16
15
adapters
?
Internet appliances
?
Wireless access points
?
Network devices
EROUT
1
14
CT1
?
Security cameras
?
High power applications
SSFT
VDD
2
3
VNEG
(PAD)
13 CT2
12 VPOSF
Description
ISOSSFT 4
11
SP1
The Si3402 integrates all power management and control functions required
5
6
7
8
9
10
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 Std 802.3? 2008 including
the IEEE Std 802.3at-2009 amendment for the case of single-event
classification. Standard external resistors connected to the Si3402 provide
the proper 802.3 signatures for the detection function and programming of
the classification mode. 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. While the
Si3402 is designed for applications up to 10 W, it can be used for higher
power applications (up to approximately 15 W). See also “AN313: Using the
Si3402 in High Power Applications” for more information.
Rev. 1.31 8/13
Copyright ? 2013 by Silicon Laboratories
Si3402
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI3403-A-GM | 制造商:Silicon Laboratories Inc 功能描述:POE POWERED DEVICE (UP TO 17W, LOW-EMI) - RECOMMENDED FOR AL - Trays 制造商:Silicon Laboratories Inc 功能描述:IC POE CTLR TO 17W LOW EMI 20QFN 制造商:Silicon Laboratories Inc 功能描述:PoE Powered Device (up to 17W, low-EMI) |
| Si3403-A-GMR | 制造商:Silicon Laboratories Inc 功能描述:POE POWERED DEVICE (UP TO 17W, LOW-EMI) - RECOMMENDED FOR AL - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:PoE Powered Device (up to 17W, low-EMI) |
| SI3403DV-T1-E3 | 功能描述:MOSFET 20V 5.0A 3.2W RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
| SI3403DV-T1-GE3 | 功能描述:MOSFET 20V 5.0A 3.2W 70mohm @ 4.5V RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
| SI3407DV | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:P-Channel 20-V (D-S) MOSFET |
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