NCP1203D View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
NCP1203D Datasheet PDF : 15 Pages
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NCP1203
ELECTRICAL CHARACTERISTICS (For typical values TJ = 25°C, for min/max values TJ = 0°C to +125°C, Max TJ = 150°C,
VCC = 11 V unless otherwise noted.)
Characteristic
Symbol
Pin
Min
Typ
Max
Unit
Supply Section (All frequency versions, otherwise noted)
Turn−on Threshold Level, VCC Going Up
VCC(on)
6
Minimum Operating Voltage after Turn−on
VCC(min)
6
VCC Decreasing Level at which the Latchoff Phase Ends
VCClatch
6
Internal IC Consumption, No Output Load on Pin 5
ICC1
6
12.2
12.8
14
V
7.2
7.8
8.4
V
−
4.9
−
V
−
750
880
mA
(Note 1)
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
ICC2
6
−
1.2
1.4
mA
FSW = 40 kHz
(Note 2)
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
ICC2
6
−
1.4
1.6
mA
FSW = 60 kHz
(Note 2)
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
ICC2
6
−
2.0
2.2
mA
FSW = 100 kHz
(Note 2)
Internal IC Consumption, Latch−off Phase, VCC = 6.0 V
ICC3
6
−
250
−
mA
Internal Startup Current Source (Pin 8 biased at 50 V)
High−Voltage Current Source, VCC = 10 V
High−Voltage Current Source, VCC = 0
IC1
8
3.5
6.0
9.0
mA
IC2
8
−
11
−
mA
Drive Output
Output Voltage Rise−Time @ CL = 1.0 nF, 10−90% of
Output Signal
Tr
5
−
67
−
ns
Output Voltage Fall−Time @ CL = 1.0 nF, 10−90% of
Output Signal
Tf
5
−
28
−
ns
Source Resistance
Sink Resistance
ROH
5
27
ROL
5
5.0
40
61
W
10
20
W
Current Comparator (Pin 5 loaded unless otherwise noted)
Input Bias Current @ 1.0 V Input Level on Pin 3
IIB
3
−
0.02
−
mA
Maximum Internal Current Setpoint (Note 3)
ILimit
3
0.85
0.92
1.0
V
Default Internal Current Setpoint for Skip Cycle Operation
ILskip
3
−
360
−
mV
Propagation Delay from Current Detection to Gate OFF
TDEL
3
−
State
90
160
ns
Leading Edge Blanking Duration (Note 3)
TLEB
3
−
230
−
ns
Internal Oscillator (VCC = 11 V, Pin 5 loaded by 1 nF)
Oscillation Frequency, 40 kHz Version
fOSC
−
37
42
47
kHz
Oscillation Frequency, 60 kHz Version
fOSC
−
57
65
73
kHz
Oscillation Frequency, 100 kHz Version
fOSC
−
90
103
115
kHz
Maximum Duty−Cycle
Dmax
−
74
80
87
%
Feedback Section (VCC = 11 V, Pin 5 unloaded)
Internal Pullup Resistor
Pin 3 to Current Setpoint Division Ratio
Rup
2
−
20
−
kW
Iratio
−
−
3.3
−
−
Skip Cycle Generation
Default Skip Mode Level
Vskip
1
1.0
1.2
1.4
V
Pin 1 Internal Output Impedance
Zout
1
−
22
−
kW
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
1. Max value at TJ = 0°C.
2. Maximum value @ TJ = 25°C, please see characterization curves.
3. Pin 5 loaded by 1 nF.
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