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參數(shù)資料
| 型號： | SE5561 |
| 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)： | 2/5頁 |
| 文件大?。?/td> | 66K |
| 代理商： | SE5561 |
Philips Semiconductors
Product specification
NE/SE5561
Switched-mode power supply control circuit
1994 Aug 31
2
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
CC
PARAMETER
RATING
UNIT
Supply
1
Voltage-forced mode
Current-fed mode
Output transistor (at 20-30V max)
Output current
Output voltage
Output duty cycle
Maximum total power dissipation
Operating temperature range
SE5561
NE5561
+18
30
V
mA
I
OUT
V
OUT
40
mA
V
%
W
V
CC
+1.4V
98
0.75
P
D
T
A
-55 to +125
0 to 70
°
C
°
C
NOTES:
1. See Voltage-Current-fed supply characteristic curve.
DC ELECTRICAL CHARACTERISTICS
V
CC
=12V, T
A
=25
°
C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
SE5561
Typ
NE5561
Typ
UNIT
Min
Max
Min
Max
Reference section
V
REF
Internal ref voltage
T
A
=25
°
C
3.69
3.65
7.8
3.75
3.84
3.88
8.8
3.57
3.55
7.8
3.75
3.96
3.98
8.8
V
V
V
Over temperature
*I
L
=7mA
V
Z
Internal zener ref
Temp. coefficient of V
REF
Temp. coefficient of V
Z
8.2
±
100
±
200
8.2
±
100
±
200
ppm/
°
C
ppm/
°
C
Oscillator section
Frequency range
Over temperature
50
100k
50
100k
Hz
Initial accuracy
R
T
and C
T
constant
f
O
=20kHz
5
5
%
Duty cycle range
0
98
0
98
%
Current limiting
I
IN
Input current
Pin 6=250mV
T
A
=25
°
C
Over temp.
-2
-10
-2
-10
μ
A
μ
A
-20
-20
Single pulse inhibit delay
Inhibit delay
time for 20%
overdrive at
I
OUT
=20mA
0.88
1.10
0.88
1.10
μ
s
I
OUT
=40mA
0.7
0.8
0.7
0.8
μ
s
V
Current limit trip level
.400
.500
.600
.400
.500
.600
Error amplifier
Open-loop gain
60
60
dB
MHz
Feedback resistor
10k
10k
BW
Small-signal bandwidth
3
3
V
OH
V
OL
Output stage
Output voltage swing
6.2
6.2
V
Output voltage swing
0.7
0.7
V
I
OUT
V
CE
Output current
Over temperature
20
20
mA
Sat
I
C
=20mA, Over temp.
0.4
0.4
V
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