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參數(shù)資料
| 型號： | SI3500-A-GM |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 192K |
| 描述： | IC POE SWITCH PWR OVER LAN 20QFN |
| 標準包裝： | 60 |
| 類型： | 以太網(wǎng)供電開關（PoE） |
| 應用： | IP 電話，LAN 網(wǎng)絡供電，網(wǎng)絡路由器和交換機 |
| 內(nèi)部開關： | 是 |
| 電流限制： | 525mA |
| 電源電壓： | 42 V ~ 57 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-VQFN 裸露焊盤 |
| 供應商設備封裝： | 20-QFN（5x5） |
| 包裝： | 管件 |
| 配用： | SMARTPSE24-KIT-ND - KIT EVAL REF 24PORT SPI/UART SI3480MS8-KIT-ND - KIT EVAL 8PORT SI3480/52/SI3500 |
| 其它名稱： | 336-1844-5 |
Rev. 1.1 10/09
Copyright ?2009 by Silicon Laboratories
Si3500
50 V INPUT DC TO DC CONVERTER
Features
Applications
Description
The Si3500 is a highly-integrated, high-voltage (42 to 57 V) input dc-to-dc
converter with integrated PWM control and power FET. The output can be
adjusted for various applications in the range of 1.8 to 12 VDC.
The integrated hot swap switch provides a 2-level current limit for slow
charging of the input filter capacitor followed by overcurrent protection at
400 mA.
The hot swap switch overcurrent protection fully protects the Si3500 from
short-circuit damage as long as the inductor does not saturate. For
situations where it is desirable to use a smaller inductor, it is possible to
reduce the overcurrent protection with the addition of one low-cost
transistor.
The Si3500 can be configured to provide an isolated output voltage or a
non-isolated output that is positive or negative with respect to the positive
input rail.
Input undervoltage and overvoltage lockout functions are fully-integrated.
A 65 V input clamp is also integrated. Output voltage softstart is enabled
by just one capacitor to control the output rise time at startup.
n Integrated switching regulator
controller with on-chip power FET
n Input range 42 to 57 V
n Output can be set from 1.8 to
12 V
n Output power up to 10 W
n Highly-integrated IC enables
compact solution footprints
l Minimal external components
l Integrated transient surge
suppressor
l Integrated dual current-limited
hotswap switch
l Integrated switching power FET
n Supports non-isolated and
isolated switching topologies
n Comprehensive protection
circuitry
l Transient overvoltage protection
l Undervoltage lockout
l Thermal shutdown protection
l Short circuit protection
n 50% duty cycle limiting
n Low-profile, 5x5 mm, 20-pin QFN
n RoHS-compliant
n 3.3 V power supply generation
for Power over Ethernet Power
Sourcing supply, such as Si3452
n Internet appliances
n Network devices
Ordering Information:
See Ordering Guide on page
page 14.
Pin Assignments
5 x 5 mm QFN
(Top View)
VNEG
(PAD)
EROUT
SSFT
NC
VPOSF
NC
NC
OSSFT
VDD
5
6
7
8
9
10
15
16
20 19 18 17
1
2
3
4
11
12
13
14
Si3500
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SI3500-A-GMR | 功能描述:直流/直流開關轉換器 -57V to +3.3V DC/DC converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| SI3529DV-T1-E3 | 功能描述:MOSFET 40V 2.25/1.76A 1.4W RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續(xù)電流:130 A 電阻汲極/源極 RDS（導通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
| SI3529DV-T1-GE3 | 功能描述:MOSFET 40V 2.2/2.3A 1.4W 125/215mohm @ 10V RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續(xù)電流:130 A 電阻汲極/源極 RDS（導通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
| SI3529DV-T1-GE3 | 制造商:Vishay Siliconix 功能描述:DUAL N/P CHANNEL MOSFET 40V TSOP |
| Si3540 | 功能描述:電機驅(qū)動器 PKG 3.5A 40VDC IND RoHS:否 制造商:Applied Motion 電機驅(qū)動類型:2035 Step 電源電壓:12 V to 35 V 功率額定值:70 W 每轉步距分辨率:200 to 400 框架大小 (NEMA): |
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