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參數(shù)資料
| 型號： | NE5560 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Switched-mode power supply control circuit |
| 中文描述： | 開關(guān)電源控制電路 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大小： | 240K |
| 代理商： | NE5560 |
Philips Semiconductors
Product specification
NE/SE5560
Switched-mode power supply control circuit
1994 Aug 31
6
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
δ MAX (%)
δ (%)
V
CC
Pd
MAX
(W)
1.0
50
24
TA
OPERATING CURVE
–60
°C
25
°C
70
°C
125
°C
SE
NE
Power Derating Curve
mA
20
10
0
10
20
30
V
NE5560
Voltage-/Current-Fed
Supply Characteristics
VCC
GND
12
1
VS
RVCC
VCC
Current-Fed Dropping Resistor
SEE DC ELECTRICAL
CHARACTERISTICS
FOR CURRENT FED
VCC RANGE
R
VCC +
V
S *
V
CC
(10 20mA)
100
90
80
70
60
50
40
30
20
10
0
1
2
3
4
5
6
V4,5,6 (V)
Transfer Curve of Pulse-Width
Modular Duty Cycle vs Input Voltage
12
R1
R2
2
6
DUTY
CYCLE
CONTROL
MAXIMUM
DUTY
CYCLE
(%)
100
90
80
70
60
50
40
30
20
10
0
0.1 0.2
0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
R
2
R
1 *
R
2
Graph for Determining
δMAX
δ (%)
R1 + R2
(
)
SOFT
ST
ART
DUTY
CYCLE
%
103
104
2
3
4
5
6 7 8 9
2
80
70
60
50
40
30
20
10
δMAX 90%
δMAX 70%
δMAX 50%
δMAX 30%
–
+
7
6
5
4
3
2
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
4
3
RS
R1
VREF(3.72V)
δ
VO/VREF (%)
10
20
30
40
50
60
70
80
90
Regulation vs Error
Amp Closed Gain
Soft-Start Min. Duty Cycle vs R1 + R2
R
f
R
S
+ 20
R
f
R
S
+ 100
R
f
R
S
+ 500
SL00363
Figure 4. Typical Performance Characteristics
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|---|---|
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| NE5560N | 制造商: 功能描述: 制造商:undefined 功能描述: |
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