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參數(shù)資料
| 型號： | FAN5037MX_NL |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO8 |
| 封裝： | LEAD FREE, SOIC-8 |
| 文件頁數(shù)： | 11/11頁 |
| 文件大?。?/td> | 101K |
| 代理商： | FAN5037MX_NL |
PRODUCT SPECIFICATION
FAN5037
REV. 1.0.3 9/26/01
9
Power and Ground Connections
The connection of VCCA to the 5V power supply plane
should be short and bypassed with a 0.1F directly at the
VCCA pin of the FAN5037. The ideal connection would be a
via down to the 5V power plane. A similar arrangement
should be made for the VCCP pin that connects to +12V.
Each ground should have a separate via connection to the
ground plane below.
A 12V power supply is used to bias the VCCP. A 47
resis-
tor is used to limit the transient current into VCCP. A 1uF
capacitor lter is used to lter the VCCP supply and source
the transient current required to charge the MOSFET gate
capacitance. This method provides sufciently high gate bias
voltage to the MOSFET (VGS), and therefore reduces
RDS(ON) of the MOSFET and its power loss.
Figure 4 provides about 5V of gate bias which works well
when using typical logic-level MOSFETs. Non-logic-level
MOSFETs should not be used because of their higher
RDS(ON).
MOSFET Gate Bias
Figure 4. 12V Gate Bias Configuration
VOUT
+5V
VCCP
47
Q1
L2
RSENSE
CBULK
D1
1
F
GNDP
+12V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN5038 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Dual Voltage Controller for DSP Power |
| FAN5038M | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Dual Volt Controller DSP Power RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| FAN5038MX | 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC Dual Volt Controller DSP Power RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT |
| FAN503MTCX | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN5056MV85 | 功能描述:DC/DC 開關(guān)控制器 SOIC-WIDE-24 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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