NCP1203 ON Semiconductor, NCP1203 Datasheet - Page 4

• Manufacturer Part Number: NCP1203
• Description: Current Mode Controller Fixed Frequency Operation
• Manufacturer: ON Semiconductor

1. Max value at T
2. Maximum value @ T
3. Pin 5 loaded by 1 nF.
ELECTRICAL CHARACTERISTICS
V
Supply Section (All frequency versions, otherwise noted)
Internal Startup Current Source (Pin 8 biased at 50 V)
Drive Output
Current Comparator (Pin 5 loaded unless otherwise noted)
Internal Oscillator (V
Feedback Section (V
Skip Cycle Generation
Turn-on Threshold Level, V
Minimum Operating Voltage after Turn-on
V
Internal IC Consumption, No Output Load on Pin 5
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
Internal IC Consumption, Latch-off Phase, V
High-Voltage Current Source, V
High-Voltage Current Source, V
Output Voltage Rise-Time @ CL = 1.0 nF, 10-90% of
Output Voltage Fall-Time @ CL = 1.0 nF, 10-90% of
Source Resistance
Sink Resistance
Input Bias Current @ 1.0 V Input Level on Pin 3
Maximum Internal Current Setpoint (Note 3)
Default Internal Current Setpoint for Skip Cycle Operation
Propagation Delay from Current Detection to Gate OFF
Leading Edge Blanking Duration (Note 3)
Oscillation Frequency, 40 kHz Version
Oscillation Frequency, 60 kHz Version
Oscillation Frequency, 100 kHz Version
Maximum Duty-Cycle
Internal Pullup Resistor
Pin 3 to Current Setpoint Division Ratio
Default Skip Mode Level
Pin 1 Internal Output Impedance
CC
F
F
F
Output Signal
Output Signal
State
CC
SW
SW
SW
= 11 V unless otherwise noted.)
Decreasing Level at which the Latchoff Phase Ends
= 40 kHz
= 60 kHz
= 100 kHz
J
= 0°C.
Characteristic
CC
CC
J
= 25°C, please see characterization curves.
= 11 V, Pin 5 loaded by 1 nF)
= 11 V, Pin 5 unloaded)
CC
Going Up
CC
CC
= 10 V
= 0
(For typical values T
CC
= 6.0 V
http://onsemi.com
NCP1203
J
V
= 25°C, for min/max values T
Symbol
V
V
Dmax
CC(min)
Vskip
CClatch
ICC1
ICC2
ICC2
ICC2
ICC3
Iratio
I
T
T
CC(on)
R
I
f
f
f
Zout
R
Rup
Lskip
IC1
IC2
OSC
OSC
OSC
Limit
I
DEL
LEB
T
T
OH
IB
OL
4
r
f
Pin
6
6
6
6
6
6
6
6
8
8
5
5
5
5
3
3
3
3
3
-
-
-
-
2
-
1
1
12.2
0.85
Min
7.2
3.5
5.0
1.0
27
37
57
90
74
J
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
= 0°C to +125°C, Max T
12.8
0.02
0.92
Typ
750
250
360
230
103
7.8
4.9
1.2
1.4
2.0
6.0
3.3
1.2
11
67
28
40
10
90
42
65
80
20
22
(Note 1)
(Note 2)
(Note 2)
(Note 2)
Max
880
160
115
J
8.4
1.4
1.6
2.2
9.0
1.0
1.4
14
61
20
47
73
87
-
-
-
-
-
-
-
-
-
-
-
= 150°C,
Unit
kHz
kHz
kHz
mA
mA
mA
mA
mA
mV
mA
mA
mA
kW
kW
ns
ns
ns
ns
%
W
W
V
V
V
V
V
-