參數(shù)資料
型號(hào)： TOP245P
英文描述： Up to 290 W Extended power. design flexible.
中文描述： 高達(dá)290瓦的擴(kuò)展能力。設(shè)計(jì)靈活。
文件頁(yè)數(shù)： 12/52頁(yè)
文件大?。?/td> 468K
代理商： TOP245P
TOP242-250
12
K
9/03
General Information & Table of Contents
Product Selector Guide 1
Data Sheets 2
Application Notes 3
Design Ideas 4
Design Tools 5
Quality and Reliability 6
FUNCTION pin is used for line sensing as described above
and not for external current limit reduction. The same pin can
also be used as a remote ON/OFF and a synchronization input
in both modes. Please refer to Table 3 for possible combinations
of the functions with example circuits shown in Figure 30
through Figure 40. A description of specific functions in terms
of the MULTI-FUNCTION pin I/V characteristic is shown in
Figure 11. The horizontal axis represents MULTI-FUNCTION
pin current with positive polarity indicating currents flowing
into the pin. The meaning of the vertical axes varies with
functions. For those that control the ON/OFF states of the output
such as UV, OV and remote ON/OFF, the vertical axis represents
value.
TOPSwitch-GXAC-DC Seminar 10
forward with DC
MAX
reduction, the vertical axis represents the
magnitude of the I
and DC
. Line feed-forward with
DC
MAX
reduction lowers maximum duty cycle from 78% at
I
(+60
μ
A typical) to 38% at I
(+225
μ
A). External
current limit is available only with negative
MULTI-
FUNCTION pin current. Please see graphs in the Typical
Performance Characteristics section for the current limit
programming range and the selection of appropriate resistor
Figure 11. MULTI-FUNCTION (P or G package), LINE-SENSE, and EXTERNAL CURRENT LIMIT (Y, R or F package) Pin Characteristics.
packages. It is therefore recommended that the MULTI-
the enable/disable states of the output. UV triggers at I
(+50
μ
A typical) and OV triggers at I
(+225
μ
A typical with
30
μ
A hysteresis). Between the UV and OV thresholds, the
-250
-200
-150
-100
-50
0
50
100
150
200
250
300
350
400
PI-2636-010802
Output
MOSFET
Switching
(Enabled)
(Disabled)
I
LIMIT
(Default)
DC
MAX
(78.5%)
Current
Limit
M Pin
L Pin
X Pin
Maximum
Duty Cycle
V
BG
-22
μ
A
-27
μ
A
V
BG
+ V
TP
I
I
I
I
I
UV
I
REM(N)
I
OV
Pin Voltage
Note: This figure provides idealized functional characteristics with typical performance values. Please refer to the parametric
table and typical performance characteristics sections of the data sheet for measured data.
X and L Pins (Y, R or F Package) and M Pin (P or G Package) Current (
μ
A)
Disabled when supply
output goes out of
regulation
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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(kāi)關(guān)轉(zhuǎn)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(kāi)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
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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