參數(shù)資料
型號(hào)： TOP250YN-TL
廠商： POWER INTEGRATIONS INC
元件分類： 穩(wěn)壓器
英文描述： 10.08 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZFM6
封裝： LEAD FREE, PLASTIC, TO-220, 7 PIN
文件頁(yè)數(shù)： 26/52頁(yè)
文件大?。?/td> 2175K
代理商： TOP250YN-TL
TOP242-250
M
12/04
32
Quick Design Checklist
As with any power supply design, all TOPSwitch-GX designs
should be veried on the bench to make sure that components
specicationsarenotexceededunderworstcaseconditions.The
following minimum set of tests is strongly recommended:
1. Maximum drain voltage – Verify that peak V
DS does not
exceed 675 V at highest input voltage and maximum
overload output power. Maximum overload output power
occurswhentheoutputisoverloadedtoaleveljustbeforethe
power supply goes into auto-restart (loss of regulation).
2. Maximumdraincurrent–Atmaximumambienttemperature,
maximum input voltage and maximum output load, verify
drain current waveforms at start-up for any signs of
transformer saturation and excessive leading edge current
spikes. TOPSwitch-GX has a leading edge blanking time of
220 ns to prevent premature termination of the ON-cycle.
Verify that the leading edge current spike is below the
allowed current limit envelope (see Figure 52) for the
drain current waveform at the end of the 220 ns blanking
period.
3. Thermal check – At maximum output power, minimum
input voltage and maximum ambient temperature, verify
that temperature specifications are not exceeded for
TOPSwitch-GX
, transformer, output diodes and output
capacitors. Enough thermal margin should be allowed for
the part-to-part variation of the R
DS(ON) of TOPSwitch-GX,
as specied in the data sheet. The margin required can
either be calculated from the tolerances or it can be
accounted for by connecting an external resistance in
series with the DRAIN pin and attached to the same
heatsink, having a resistance value that is equal to the
difference between the measured R
DS(ON) of the device
under test and the worst case maximum specication.
Design Tools
For a discussion on utilizing TOPSwitch-GX in a forward
converter conguration, please refer to the TOPSwitch-GX
Forward Design Methodology Application Note.
Up-to-date information on design tools can be found at the
Power Integrations website: www.powerint.com
-
HV
+
- DC
Out
PI-2734-043001
T
r
a
n
s
f
o
r
m
e
r
Safety Spacing
Y1-
Capacitor
Solder Side
Component Side
Opto-
coupler
+
Output Filter Capacitors
Maximize hatched copper
areas (
) for optimum
heat sinking
TOP VIEW
Input Filter
Capacitor
R1a - 1c
PRI
SEC
BIAS
TOPSwitch-GX
S
L
C
X
D
Figure 49. Layout Considerations for TOPSwitch-GX using R Package.
相關(guān)PDF資料
PDF描述
TOP244RN-TL 2.16 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PSSO6
TOP244Y-TL 2.16 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZFM6
TOP246Y-TL 4.32 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZFM6
TOP245YN-TL 2.88 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZFM6
TOP247Y-TL 5.76 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZFM6
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TOP250Y-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
TOP252-262 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:Enhanced EcoSmart, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range
TOP252EG 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 13W (85-264V AC) 21W (230V AC) 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(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel
TOP252EN 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 Int Off-Line Switchr 13W/21W 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(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel
TOP252GN 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 10W/13W PK 5-264VAC 15W/21W PK (230V AC) 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(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*