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參數資料
| 型號： | NCP1560 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Full Featured Voltage Mode PWM Controller(全性能電壓模式PWM控制器) |
| 中文描述： | 全功能電壓模式PWM控制器（全性能電壓模式的PWM控制器） |
| 文件頁數： | 7/18頁 |
| 文件大小： | 122K |
| 代理商： | NCP1560 |
NCP1560
http://onsemi.com
7
ELECTRICAL CHARACTERISTICS
(V
in
= 48 V, V
AUX
= 12 V, V
EA
= 2 V, R
T
= 101 k , C
CSKIP
= 6800 pF,
R
D
= 60.4 k , R
FF
= 432 k , for typical values T
J
= 25
°
C, for min/max values, T
J
= -40
°
C to 125
°
C, unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max
Unit
OSCILLATOR
Frequency (R
T
= 101 k , V
in
= 36 V)
T
J
= 25
°
C
T
J
= -40
°
C to 125
°
C
f
OSC1
285
280
300
-
315
320
kHz
Frequency (R
T
= 59 k , V
in
= 36 V, V
EA
= 1 V)
T
J
= 25
°
C
T
J
= -40
°
C to 125
°
C
f
OSC2
456
444
480
-
504
516
kHz
MAXIMUM DUTY CYCLE COMPARATOR
Maximum Duty Cycle (V
in
= 36 V, V
EA
= 3 V, T
J
= 25
°
C)
R
P
= 0 , R
MDP
= open
R
P
= open, R
MDP
= open
DC
MAX
57
75
62
80
66
85
%
Open Circuit Voltage
V
DCMAX
0.40
0.47
0.60
V
SOFT START
Charge Current (V
SS
= 1.0 V)
I
SS(C)
5.0
6.2
7.4
A
Discharge Current (V
SS
= 5.0 V, V
UV/OV
= 3.7 V)
I
SS(D)
20
52.5
-
mA
PWM COMPARATOR
Input Resistance (V
= 1.25 V, V
2
= 1.50 V)
R
IN(VEA)
= (V
2
- V
1
)/(I
2
- I
1
)
R
IN(VEA)
8.0
22
60
k
Lower Input Threshold
V
EA(L)
0.3
0.7
0.9
V
Delay to Output (from V
OH
to 0.5 V
OH
)
t
PWM
-
200
-
ns
5.0 V REFERENCE
Output Voltage (I
REF
= 0 mA)
V
REF
4.9
5.0
5.1
V
Load Regulation (I
REF
= 0 to 6 mA)
V
REF(Load)
-
10
50
mV
Line Regulation (V
AUX
= 7.5 to 16 V)
V
REF(Line)
-
50
100
mV
CONTROL OUTPUTS
Output Voltage (I
OUT
= 0 mA)
Low State
High State
V
OL
V
OH
-
-
0.25
11.8
-
-
V
Overlap Delay (V
in
= 36 V)
R
D
= 1 M
Leading
Trailing
R
D
= 60 k
Leading
Trailing
t
D
-
-
50
32
200
170
90
72
-
-
130
130
ns
Drive Resistance (V
in
= 15 V)
Sink (V
EA
= 0 V, V
OUT
= 2 V)
Source (V
EA
= 3 V, V
OUT
= 10 V)
R
SNK
R
SRC
20
50
40
90
80
170
Rise Time (C
L
= 100 pF, 10% to 90% of V
OH
)
t
on
-
30
-
ns
Fall Time (C
L
= 100 pF, 90% to 10% of V
OH
)
t
off
-
12
-
ns
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