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參數資料
| 型號： | TOP245P |
| 英文描述： | Up to 290 W Extended power. design flexible. |
| 中文描述： | 高達290瓦的擴展能力。設計靈活。 |
| 文件頁數： | 2/52頁 |
| 文件大小： | 468K |
| 代理商： | TOP245P |
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TOP242-250
2
K
9/03
Design Tools .........................................................................................................................................................32
Package Outlines
......................................................................................................................................................45
Section List
Functional Block Diagram
......................................................................................................................................... 3
Pin Functional Description
........................................................................................................................................ 4
TOPSwitch-GXFamily Functional Description
........................................................................................................5
CONTROL (C) Pin Operation .................................................................................................................................6
Oscillator and Switching Frequency .......................................................................................................................6
Pulse Width Modulator and Maximum Duty Cycle .................................................................................................7
Light Load Frequency Reduction............................................................................................................................7
Error Amplifier.........................................................................................................................................................7
On-chip Current Limit with External Programmability .............................................................................................7
Line Under-Voltage Detection (UV) ........................................................................................................................8
Line Overvoltage Shutdown (OV)...........................................................................................................................8
Line Feed Forward with DC
Reduction ..............................................................................................................8
Remote ON/OFF and Synchronization ...................................................................................................................9
Soft-Start ................................................................................................................................................................9
Shutdown/Auto-Restart ..........................................................................................................................................9
Hysteretic Over-Temperature Protection ................................................................................................................9
Bandgap Reference..............................................................................................................................................10
High-Voltage Bias Current Source........................................................................................................................10
Using Feature Pins
....................................................................................................................................................10
FREQUENCY (F) Pin Operation...........................................................................................................................10
LINE-SENSE (L) Pin Operation............................................................................................................................10
EXTERNAL CURRENT LIMIT (X) Pin Operation ................................................................................................. 11
MULTI-FUNCTION (M) Pin Operation .................................................................................................................. 11
Typical Uses of FREQUENCY (F) Pin
......................................................................................................................14
Typical Uses of LINE-SENSE (L) and EXTERNAL CURRENT LIMIT (X) Pins
.......................................................15
Typical Uses of MULTI-FUNCTION (M) Pin
.............................................................................................................17
Application Examples
...............................................................................................................................................20
A High Efficiency, 30 W, Universal Input Power Supply........................................................................................20
A High Efficiency, Enclosed, 70 W, Universal Adapter Supply..............................................................................21
A High Efficiency, 250 W, 250-380 VDC Input Power Supply...............................................................................22
Multiple Output, 60 W, 185-265 VAC Input Power Supply....................................................................................23
Processor Controlled Supply Turn On/Off ............................................................................................................24
Key Application Considerations
..............................................................................................................................26
TOPSwitch-IIvs. TOPSwitch-GX..........................................................................................................................26
TOPSwitch-FX vs. TOPSwitch-GX .......................................................................................................................27
TOPSwitch-GXDesign Considerations ................................................................................................................28
TOPSwitch-GXLayout Considerations.................................................................................................................30
Quick Design Checklist.........................................................................................................................................30
Product Specifications and Test Conditions
..........................................................................................................33
Typical Performance Characteristics
......................................................................................................................40
Part Ordering Information
........................................................................................................................................45
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TOP245P- | 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP245P_1 | 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:Title 32W (47W peak) Multiple Output supply |
| TOP245PN | 功能描述:交流/直流開關轉換器 22W 85-265 VAC 30 W 230 VAC RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TOP245PN- | 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP245PN0152 | 制造商:Power Integrations 功能描述: |
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