NCP1200
ELECTRICAL CHARACTERISTICS (For typical values T = +25°C, for min/max values T = −25°C to +125°C, Max T = 150°C,
J
J
J
V
CC
= 11 V unless otherwise noted)
Rating
DYNAMIC SELF−SUPPLY (All Frequency Versions, Otherwise Noted)
Pin
Symbol
Min
Typ
Max
Unit
V
V
V
Increasing Level at Which the Current Source Turns−off
Decreasing Level at Which the Current Source Turns−on
Decreasing Level at Which the Latchoff Phase Ends
6
6
6
6
V
10.3
8.8
−
11.4
9.8
12.5
11
V
V
CC
CC
CC
CCOFF
V
CCON
V
6.3
−
V
CClatch
Internal IC Consumption, No Output Load on Pin 5
Internal IC Consumption, 1 nF Output Load on Pin 5, F
Internal IC Consumption, 1 nF Output Load on Pin 5, F
Internal IC Consumption, 1 nF Output Load on Pin 5, F
I
I
I
I
I
−
710
880
mA
CC1
CC2
CC2
CC2
CC3
Note 1
= 40 kHz
= 60 kHz
= 100 kHz
6
6
6
6
−
−
−
−
1.2
1.4
1.9
350
1.4
mA
mA
mA
mA
SW
SW
SW
Note 2
1.6
Note 2
2.2
Note 2
Internal IC Consumption, Latchoff Phase
−
INTERNAL CURRENT SOURCE
High−voltage Current Source, V = 10 V
8
8
I
I
2.8
−
4.0
4.9
−
−
mA
mA
CC
C1
High−voltage Current Source, V = 0 V
CC
C2
DRIVE OUTPUT
Output Voltage Rise−time @ CL = 1 nF, 10−90% of Output Signal
Output Voltage Fall−time @ CL = 1 nF, 10−90% of Output Signal
5
5
5
5
T
−
−
67
28
40
12
−
−
ns
ns
W
r
T
f
Source Resistance (drive = 0, Vgate = V
− 1 V)
R
27
5
61
25
CCHMAX
OH
Sink Resistance (drive = 11 V, Vgate = 1 V)
CURRENT COMPARATOR (Pin 5 Un−loaded)
Input Bias Current @ 1 V Input Level on Pin 3
Maximum internal Current Setpoint
R
W
OL
IB
3
3
3
3
3
I
−
0.8
−
0.02
0.9
−
1.0
−
mA
V
I
Limit
Default Internal Current Setpoint for Skip Cycle Operation
Propagation Delay from Current Detection to Gate OFF State
Leading Edge Blanking Duration
I
350
100
230
mV
ns
ns
Lskip
T
−
160
−
DEL
LEB
T
−
INTERNAL OSCILLATOR (V = 11 V, Pin 5 Loaded by 1 kW)
CC
Oscillation Frequency, 40 kHz Version
Oscillation Frequency, 60 kHz Version
Oscillation Frequency, 100 kHz Version
−
−
−
−
−
−
−
f
f
f
36
52
86
−
42
61
48
70
116
−
kHz
kHz
kHz
Hz/V
Hz/V
Hz/V
%
OSC
OSC
OSC
103
300
450
620
80
Built−in Frequency Jittering, F
Built−in Frequency Jittering, F
Built−in Frequency Jittering, F
Maximum Duty Cycle
= 40 kHz
= 60 kHz
= 100 kHz
f
SW
SW
SW
jitter
jitter
jitter
f
−
−
f
−
−
Dmax
74
87
FEEDBACK SECTION (V = 11 V, Pin 5 Loaded by 1 kW)
CC
Internal Pullup Resistor
2
−
Rup
−
−
8.0
4.0
−
−
kW
Pin 3 to Current Setpoint Division Ratio
SKIP CYCLE GENERATION
Default skip mode level
Iratio
−
1
1
Vskip
Zout
1.1
−
1.4
25
1.6
−
V
Pin 1 internal output impedance
kW
1. Max value @ T = −25°C.
J
2. Max value @ T = 25°C, please see characterization curves.
J
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