- 您現在的位置：買賣IC網 > Datasheet目錄44 > MIC2086-MBQS TR (Micrel Inc)IC CTRLR HOW SWAP SGL 20-QSOP Datasheet資料下載
參數資料
| 型號： | MIC2086-MBQS TR |
| 廠商： | Micrel Inc |
| 文件頁數： | 26/29頁 |
| 文件大?。?/td> | 1008K |
| 描述： | IC CTRLR HOW SWAP SGL 20-QSOP |
| 標準包裝： | 2,500 |
| 類型： | 熱交換控制器 |
| 應用： | 通用型 Infiniband? |
| 內部開關： | 無 |
| 電源電壓： | 2.3 V ~ 16.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 20-QSOP |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | MIC2086-MBQSTR MIC2086-MBQSTR-ND |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁當前第26頁第27頁第28頁第29頁
Micrel, Inc.
MIC2085/2086
May 2006
26
M9999-050406
(408) 955-1690
PCB Layout Considerations
Because of the low values of the sense resistors used
with theMIC2085/86 controllers, special attention to the
layout must be used in order for the devices circuit
breaker function to operate properly. Specifically, the
use of a 4-wire Kelvin connection to measure the voltage
across R
SENSE
is highly recommended. Kelvin sensing is
simply a means of making sure that any voltage drops in
the power traces connecting to the resistors does not get
picked up by the traces themselves. Additionally, these
Kelvin connections should be isolated from all other
signal traces to avoid introducing noise onto these
sensitive nodes. Figure 13 illustrates a recommended,
multi-layer layout for the R
SENSE
, Power MOSFET,
timer(s), overvoltage and feedback network connections.
The feed-back and overvoltage resistive networks are
selected for a12V application (from Figure 5). Many hot
swap applications will require load currents of several
amperes. Therefore, the power (VCC and Return) trace
widths (W) need to be wide enough to allow the current
to flow while the rise in temperature for a given copper
plate (e.g., 1 oz. or 2 oz.) is kept to a maximum of 10癈
~ 25癈. Also, these traces should be as short as
possible in order to minimize the IR drops between the
input and the load. For a starting point, there are many
trace width calculation tools available on the web such
as the following link:
http://www.aracnet.com/cgi-usr/gpatrick/trace.pl
Finally, plated-through vias are utilized to make circuit
connections to the power and ground planes. The trace
connections with indicated vias should follow the
example shown for the GND pin connection in Figure 13.
Figure 13. Recommended PCB Layout for Sense Resistor, Power MOSFET,
and Feedback/Overvoltage Network
相關PDF資料 |
PDF描述 |
|---|---|
| MIC2225-4OYMT TR | IC REG DL BUCK/LINEAR 10TMLF |
| MIC2310-2ZTS TR | IC HOT SWAP CTLR 2CHAN 24TSSOP |
| MIC2341-2YTQ | IC HOT PLUG CTLR DUAL PCI 48TQFP |
| MIC2569YQS TR | IC POWER SWITCH CABLECARD 16QSOP |
| MIC2583R-MBQS TR | IC CTRLR HOT SWAP 200MV 16-QSOP |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC2086-XBQS | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Single Channel Hot Swap Controllers |
| MIC2090 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Current Limiting Power Distribution Switches |
| MIC2090_11 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Current Limiting Power Distribution Switches |
| MIC2090-1YM5 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Current Limiting Power Distribution Switches |
| MIC2090-1YM5 TR | 功能描述:電源開關 IC - USB 50mA Current Limiting Power Distribution Switch RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復。