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参数资料
| 型号： | TOP245PN |
| 厂商： | Power Integrations |
| 文件页数： | 26/52页 |
| 文件大小： | 0K |
| 描述： | IC OFFLINE SWIT OVP UVLO HV 8DIP |
| 标准包装： | 50 |
| 输出隔离： | 隔离 |
| 频率范围： | 66 ~ 132kHz |
| 输出电压： | 700V |
| 功率（瓦特）： | 30W |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | 8-DIP（0.300"，7.62mm），7 引线 |
| 供应商设备封装： | DIP-8B |
| 包装： | 管件 |
| 产品目录页面： | 1204 (CN2011-ZH PDF) |
| 其它名称： | 596-1074-5 |
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TOP242-250
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
External Current
Limit
N/A*
N/A*
10 ms
Programmable 100%
to 30% of default
current limit
? 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
11,20,21, ? Smaller transformer
24,25,27, ? Higher ef?ciency
28,34,35, ? Allows power limiting (constant
38,39 overload power independent of
line voltage)
? Allows use of larger device for
lower losses, higher ef?ciency
and smaller heatsink
DC MAX
Line Feed-Forward
with DC MAX Reduction
67%
N/A*
78%
78% to 38%
7
7,11,17,
26,27,28,
31,40
? Smaller input cap (wider dynamic
range)
? Higher power capability (when
used with RCD clamp for large
V OR )
? Allows use of Schottky secondary
recti?er diode for up to 15 V
output for high ef?ciency
? Rejects line ripple
Line OV Shutdown
Line UV Detection
N/A*
N/A*
Single resistor
programmable
Single resistor
programmable
11,17,19, ? Increases voltage withstand
26,27,28 capability against line surge
31,33,40
11,17,18, ? Prevents auto-restart glitches
26,27,28, during power down
31,32,40
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
26
O
11/05
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TOP245PN- | 制造商:POWERINT 制造商全称: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: |
| TOP245PN-TL | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP245P-TL | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP245R | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:Family Extended Power, Design Flexible,Integrated Off-line Switcher |
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