參數(shù)資料
型號(hào)： NCP1203D40R2G
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： PWM Current−Mode Controller for Universal Off−Line Supplies Featuring Standby and Short Circuit Protection
中文描述： 0.25 A SWITCHING CONTROLLER, 47 kHz SWITCHING FREQ-MAX, PDSO8
封裝： LEAD FREE, SOIC-8
文件頁(yè)數(shù)： 4/15頁(yè)
文件大小： 217K
代理商： NCP1203D40R2G
NCP1203
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS
(For typical values T
J
= 25
°
C, for min/max values T
J
= 0
°
C to +125
°
C, Max T
J
= 150
°
C,
V
CC
= 11 V unless otherwise noted.)
Characteristic
Symbol
Pin
Min
Typ
Max
Unit
Supply Section
(All frequency versions, otherwise noted)
Turnon Threshold Level, V
CC
Going Up
V
CC(on)
6
12.2
12.8
14
V
Minimum Operating Voltage after Turnon
V
CC(min)
6
7.2
7.8
8.4
V
V
CC
Decreasing Level at which the Latchoff Phase Ends
V
CClatch
6
4.9
V
Internal IC Consumption, No Output Load on Pin 5
ICC1
6
750
880
(Note 1)
A
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
F
SW
= 40 kHz
ICC2
6
1.2
1.4
(Note 2)
mA
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
F
SW
= 60 kHz
ICC2
6
1.4
1.6
(Note 2)
mA
Internal IC Consumption, 1.0 nF Output Load on Pin 5,
F
SW
= 100 kHz
ICC2
6
2.0
2.2
(Note 2)
mA
Internal IC Consumption, Latchoff Phase, V
CC
= 6.0 V
ICC3
6
250
A
Internal Startup Current Source
(Pin 8 biased at 50 V)
HighVoltage Current Source, V
CC
= 10 V
IC1
8
3.5
6.0
9.0
mA
HighVoltage Current Source, V
CC
= 0
IC2
8
11
mA
Drive Output
Output Voltage RiseTime @ CL = 1.0 nF, 1090% of
Output Signal
T
r
5
67
ns
Output Voltage FallTime @ CL = 1.0 nF, 1090% of
Output Signal
T
f
5
28
ns
Source Resistance
R
OH
5
27
40
61
Sink Resistance
R
OL
5
5.0
10
20
Current Comparator
(Pin 5 loaded unless otherwise noted)
Input Bias Current @ 1.0 V Input Level on Pin 3
I
IB
3
0.02
A
Maximum Internal Current Setpoint (Note 3)
I
Limit
3
0.85
0.92
1.0
V
Default Internal Current Setpoint for Skip Cycle Operation
I
Lskip
3
360
mV
Propagation Delay from Current Detection to Gate OFF
State
T
DEL
3
90
160
ns
Leading Edge Blanking Duration (Note 3)
T
LEB
3
230
ns
Internal Oscillator
(V
CC
= 11 V, Pin 5 loaded by 1 nF)
Oscillation Frequency, 40 kHz Version
f
OSC
37
42
47
kHz
Oscillation Frequency, 60 kHz Version
f
OSC
57
65
73
kHz
Oscillation Frequency, 100 kHz Version
f
OSC
90
103
115
kHz
Maximum DutyCycle
Dmax
74
80
87
%
Feedback Section
(V
CC
= 11 V, Pin 5 unloaded)
Internal Pullup Resistor
Rup
2
20
k
Pin 3 to Current Setpoint Division Ratio
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
k
1. Max value at T
= 0
°
C.
2. Maximum value @ T
J
= 25
°
C, please see characterization curves.
3. Pin 5 loaded by 1 nF.
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