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參數資料
| 型號： | L4981B |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩壓器 |
| 英文描述： | 2 A POWER FACTOR CONTROLLER, 115 kHz SWITCHING FREQ-MAX, PDIP20 |
| 封裝： | DIP-20 |
| 文件頁數： | 13/16頁 |
| 文件大小： | 2620K |
| 代理商： | L4981B |
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Prameter
Test Condition
Min.
Typ.
Max.
Unit
MULTIPLIER SECTION
Multipler Output Current
VVA-OUT = 4V, VRMS = 2V,
VMULTOUT = 0, VLFF = 5.1V
IAC = 50
A, COSC = 0V
20
35
52
A
VVA-OUT = 4V, VRMS = 2V,
VMULTOUT = 0, VLFF = 5.1V
IAC = 200
A, COSC = 0V
100
135
170
A
VVA-OUT = 2V, VRMS = 2V,
VMULTOUT = 0, VLFF = 5.1V
IAC = 100
A, COSC = 0V
10
20
30
A
VVA-OUT = 2V, VRMS = 4V,
VMULTOUT = 0, VLFF = 5.1V
IAC = 100
A, COSC = 0V
25.5
11
A
VVA-OUT = 4V, VRMS = 4V,
VMULTOUT = 0, VLFF = 5.1V
IAC = 100
A, COSC = 0V
10
22
34
A
VVA-OUT = 4V, VRMS = 2V,
VMULTOUT = 0, VLFF = 2.5V
COSC = 0V, IAC = 200
A
20
37
54
A
VVA-OUT = 4V, VRMS = 4V
VMULTOUT = 0, VLFF = 5.1V
IAC = 200
A, COSC = 0V
20
39
54
A
VVA-OUT = 2V, VRMS = 4V,
VMULTOUT = 0, VLFF = 5.1V
IAC = 0, COSC = 0V
-2
0
2
A
K
Multiplier Gain
0.37
IMULTOUT = K IAC
(VVAOUT 1.28) (0.8 VLFF 1.28)
(VVRMS)2
if VLFF = VREF;
IMULTOUT = IAC
(VVAOUT 1.28)
(VVRMS)
2
K1
where: K1 = 1V
Figure 1: MULTI-OUT vs. IAC (VRMS = 1.7V;
VLFFD = 5.1V)
Figure 2: MULTI-OUT vs. IAC (VRMS = 2.2V;
VLFFD = 5.1V)
L4981A - L4981B
6/16
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相關代理商/技術參數 |
參數描述 |
|---|---|
| L4981B | 制造商:STMicroelectronics 功能描述:POWER FACTOR CORRECTOR 4981 DIP20 |
| L4981BD | 功能描述:功率因數校正 IC Very High Power RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L4981BD | 制造商:STMicroelectronics 功能描述:POWER FACTOR CORRECTOR SMD 4981 |
| L4981BD013TR | 功能描述:功率因數校正 IC Very High Power RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L4981DIE1 | 制造商:STMicroelectronics 功能描述: |
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