NCP1280_05 ONSEMI [ON Semiconductor], NCP1280_05 Datasheet - Page 6

• Manufacturer Part Number: NCP1280_05
• Description: Active Clamp Voltage Mode PWM Controller for Off-Line Applications
• Manufacturer: ONSEMI [ON Semiconductor]

ELECTRICAL CHARACTERISTICS
R
OSCILLATOR
MAXIMUM DUTY CYCLE COMPARATOR
SOFT−START
PWM COMPARATOR
5.0 V REFERENCE
CONTROL OUTPUTS
Frequency (R
Frequency (R
Maximum Duty Cycle (V
Open Circuit Voltage
Charge Current (V
Discharge Current (V
Input Resistance (V
Lower Input Threshold
Delay to Output (from V
Output Voltage (I
Load Regulation (I
Line Regulation (V
Output Voltage (I
Overlap Delay
R
R
Drive Resistance (V
Rise Time (C
Fall Time (C
D
D
D
Leading
Trailing
Leading
Trailing
= 60.4 kW, R
T
T
T
T
R
R
R
T
T
Low State
High State
Sink (V
Source (V
= 1 MW
= 60 kW
J
J
J
J
J
J
P
P
IN(VEA)
= 25 C
= −40 C to 125 C
= 25 C
= −40 C to 125 C
= 25 C
= −40 C to 125 C
= 0 W, R
= open, R
EA
L
= (V
L
EA
T
T
= 0 V, V
= 100 pF, 90% to 10% of V
= 100 pF, 10% to 90% of V
FF
= 101 kW)
= 220 kW, V
MDP
= 3 V, V
MDP
2
REF
OUT
= 1.0 MW, for typical values T
− V
SS
REF
AUX
1
= open
in
SS
= 0 mA)
= 1.25 V, V
= open
= 1.0 V)
= 0 mA)
1
OUT
= 15 V)
)/(I
= 0 to 6 mA)
= 7.5 to 16 V)
OH
EA
= 5.0 V, V
OUT
2
= 2 V)
− I
to 0.5 V
EA
= 3.0 V, T
= 10 V)
1
= 1.0 V)
)
2
UV/OV
= 1.50 V)
OH
Characteristic
J
)
= 25 C)
= 0 V)
OH
(V
OH
)
in
)
= 82 V, V
J
= 25 C, for min/max values, T
AUX
http://onsemi.com
= 12 V, V
NCP1280
6
EA
= 2 V, R
J
T
= −40 C to 125 C, unless otherwise noted)
= 101 kW, C
V
V
R
Symbol
V
REF(Load)
DC
REF(Line)
V
f
f
I
I
R
R
DCMAX
IN(VEA)
t
V
OSC1
OSC2
SS(C)
SS(D)
V
V
PWM
EA(L)
t
t
SRC
REF
t
SNK
OH
on
off
CSKIP
OL
MAX
D
= 6800 pF,
0.40
Min
285
280
142
140
5.0
8.0
0.3
4.9
4.8
57
75
20
50
32
20
50
−
−
−
−
−
−
−
−
−
0.47
52.5
0.25
11.8
Typ
300
150
200
200
170
6.2
0.7
5.0
62
80
22
10
50
90
72
40
90
30
12
−
−
−
Max
0.60
315
320
158
160
100
130
130
170
7.4
0.9
5.1
5.1
66
85
60
50
80
−
−
−
−
−
−
−
−
Unit
kHz
kHz
mA
mV
mV
mA
kW
ns
ns
ns
ns
%
W
V
V
V
V