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參數資料
| 型號： | TOP250R |
| 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： | 26/52頁 |
| 文件大小： | 468K |
| 代理商： | TOP250R |
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TOP242-250
26
K
9/03
General Information & Table of Contents
100% to 30% of
24,25,27,
Higher efficiency
default current
28,34,35,
Allows power limiting (constant over-
limit
38,39
load power independent of line
voltage
Allows use of larger device for lower
losses, higher efficiency and smaller
heatsink
78%
7
Smaller input cap (wider dynamic
range)
Higher power capability (when used
with RCD clamp for large V
)
Allows use of Schottky secondary
rectifier diode for up to 15 V output
for high efficiency
78% to 38%
7,11,17,
Rejects line ripple
26,27,28,
31,40
Single resistor
11,17,19,
Increases voltage withstand cap-
programmable
26,27,28,
ability against line surge
31,33,40
Single resistor
11,17,18,
Prevents auto-restart glitches
programmable
26,27,28,
during power down
132 kHz
±
6%
Smaller transformer
Below start of conducted EMI limits
66 kHz
±
7%
14,15
Lower losses when using RC and
video applications
standby mode
Lower EMI (second harmonic below
4 kHz@132 kHz 9,46
Reduces conducted EMI
±
2 kHz@66 kHz
At a Duty Cycle
7
Zero load regulation without dummy
below 10%
load
Low power consumption at no load
Quality and Reliability 6
Package Information 7
DPA-SwitchDC-DC Seminar 8
LinkSwitch & TinySwitch-IIAC-DC Seminar 9
TOPSwitch-GXAC-DC Seminar 10
Sales Representatives and Distributors 11
Key Application Considerations
TOPSwitch-II
vs.
TOPSwitch-GX
Table 4 compares the features and performance differences
between
TOPSwitch
-
GX
and
TOPSwitch-II
. Many of the new
features eliminate the need for additional discrete components.
Other features increase the robustness of design allowing cost
savings in the transformer and other power components.
Function
TOPSwitch-II
TOPSwitch-GX
Figures
TOPSwitch-GX
Advantages
Soft-Start
N/A*
10 ms
Limits peak current and voltage
component stresses during start-up
Eliminates external components
used for soft-start in most
applications
Reduces or eliminates output
External Current Limit
N/A*
DC
MAX
67%
Line Feed Forward with N/A*
DC
MAX
Reduction
Line OV Shutdown
N/A*
Line UV Detection
N/A*
Switching Frequency
100 kHz
±
10%
Switching Frequency
Option (Y, R and F
Packages)
N/A*
Frequency Jitter
N/A*
Frequency Reduction
N/A*
Table 4. Comparison Between TOPSwitch-II and TOPSwitch-GX. (continued on next page)
*Not available
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TOP250R- | 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 |
| TOP250RN- | 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 |
| TOP250RN-TL | 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 |
| TOP250R-TL | 功能描述:交流/直流開關轉換器 55 W 85-265 VAC 82 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 |
| TOP250Y | 功能描述:交流/直流開關轉換器 210 W 85-265 VAC 290 W 230 VACX 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 |
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