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參數(shù)資料
| 型號： | TOP248F |
| 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： | PLASTIC, TO-262, 7/6 PIN |
| 文件頁數(shù)： | 4/52頁 |
| 文件大?。?/td> | 2175K |
| 代理商： | TOP248F |
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TOP242-250
N
4/05
12
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 specic functions in terms
of the MULTI-FUNCTION pin I/V characteristic is shown in
Figure 11. The horizontal axis represents MULTI-FUNCTION
pincurrentwithpositivepolarityindicatingcurrentsowinginto
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
the enable/disable states of the output. UV triggers at I
UV
(+50 A typical) and OV triggers at I
OV (+225 A typical with
30 A hysteresis). Between the UV and OV thresholds, the
output is enabled. For external current limit and line feed-
forward with DC
MAX reduction, the vertical axis represents the
magnitude of the I
LIMIT and DCMAX. Line feed-forward with
DC
MAX reduction lowers maximum duty cycle from 78% at IM(DC)
(+60 A typical) to 38% at I
OV (+225 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 value.
-250
-200
-150
-100
-50
0
50
100
150
200
250
300
350
400
PI-2636-010802
Output
MOSFET
Switching
(Enabled)
(Disabled)
ILIMIT (Default)
DCMAX (78.5%)
Current
Limit
M Pin
L Pin
X Pin
Maximum
Duty Cycle
VBG
-22
A
-27
A
VBG + VTP
I
IUV
IREM(N)
IOV
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 (
A)
Disabled when supply
output goes out of
regulation
Figure 11. MULTI-FUNCTION (P or G package), LINSE-SENSE, and EXTERNAL CURRENT LIMIT (Y, R or F package) Pin Characteristics.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TOP248F- | 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 |
| TOP248FN | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 155 W 85-265 VAC 205 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(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| TOP248FN- | 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 |
| TOP248FN-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 |
| 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 |
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