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參數(shù)資料
| 型號： | TOP248FN-TL |
| 廠商： | POWER INTEGRATIONS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 7.2 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
| 封裝： | LEAD FREE, PLASTIC, TO-262, 7/6 PIN |
| 文件頁數(shù)： | 19/52頁 |
| 文件大?。?/td> | 2175K |
| 代理商： | TOP248FN-TL |
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TOP242-250
N
4/05
26
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
overshoot
External Current
Limit
N/A*
Programmable 100%
to 30% of default
current limit
11,20,21,
24,25,27,
28,34,35,
38,39
Smaller transformer
Higher efciency
Allows power limiting (constant
overload power independent of
line voltage)
Allows use of larger device for
lower losses, higher efciency
and smaller heatsink
DC
MAX
67%
78%
7
Smaller input cap (wider dynamic
range)
Higher power capability (when
used with RCD clamp for large
V
OR)
Allows use of Schottky secondary
rectier diode for up to 15 V
output for high efciency
Line Feed-Forward
with DC
MAX Reduction
N/A*
78% to 38%
7,11,17,
26,27,28,
31,40
Rejects line ripple
Line OV Shutdown
N/A*
Single resistor
programmable
11,17,19,
26,27,28
31,33,40
Increases voltage withstand
capability against line surge
Line UV Detection
N/A*
Single resistor
programmable
11,17,18,
26,27,28,
31,32,40
Prevents auto-restart glitches
during power down
Switching Frequency 100 kHz ±10%
132 kHz ±6%
13,15
Smaller transformer
Below start of conducted EMI
limits
Table 4. Comparison Between TOPSwitch-II and TOPSwitch-GX (continued on next page).
*Not available
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TOP250F-TL | 10.08 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
| TOP245F | 2.88 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
| TOP245FN-TL | 2.88 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
| TOP247F | 5.76 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
| TOP244GTL | 2.16 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PDSO7 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TOP248F-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 |
| TOP248G- | 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 |
| TOP248GN- | 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 |
| TOP248GN-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 |
| TOP248G-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 |
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