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NCP1031DR2

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
NCP1030, NCP1031
http://onsemi.com
7
TYPICAL CHARACTERISTICS
V
CC
, SUPPLY VOLTAGE (V)
13.0
12.5
12.0
11.5
8.0
8.5
9.0
9.5
11.0
10.5
0
10.0
246810
I
START
, STARTUP CURRENT (mA)
NCP1030
V
DRAIN
= 48 V
T
J
= 25°C
Figure 4. NCP1030 Startup Current vs. Supply
Voltage
20
18
16
14
0
2
4
6
12
10
8
I
START
, STARTUP CURRENT (mA)
NCP1030
V
DRAIN
= 48 V
−50 −25 0 25 50 150
T
J
, JUNCTION TEMPERATURE (°C)
Figure 5. NCP1031 Startup Current vs. Supply
Voltage
75 100 125
V
CC
= 0 V
V
CC
= V
CC(on)
− 0.2 V
V
DRAIN
, DRAIN VOLTAGE (V)
12
10
8
0
2
6
0
4
25 50 75 100 200
I
START
, STARTUP CURRENT (mA)
Figure 6. NCP1030 Startup Current vs.
Junction Temperature
125 150 175
T
J
= 25°C
V
CC
= V
CC(on)
− 0.2 V
Figure 7. NCP1031 Startup Current vs.
Junction Temperature
Figure 8. NCP1030 Startup Current vs. Drain
Voltage
Figure 9. NCP1031 Startup Current vs. Drain
Voltage
T
J
= −40°C
T
J
= 125°C
V
CC
, SUPPLY VOLTAGE (V)
20
19
18
17
10
11
12
13
16
15
0
14
246810
I
START
, STARTUP CURRENT (mA)
NCP1031
V
DRAIN
= 48 V
T
J
= 25°C
20
18
16
14
0
2
4
6
12
10
8
I
START
, STARTUP CURRENT (mA)
NCP1031
V
DRAIN
= 48 V
−50 −25 0 25 50 150
T
J
, JUNCTION TEMPERATURE (°C)
75 100 125
V
CC
= 0 V
V
CC
= V
CC(on)
− 0.2 V
V
DRAIN
, DRAIN VOLTAGE (V)
12
10
8
0
2
6
0
4
25 50 75 100 200
I
START
, STARTUP CURRENT (mA)
125 150 175
T
J
= 25°C
T
J
= −40°C
T
J
= 125°C
NCP1030
NCP1031
20
14
18
16
V
CC
= V
CC(on)
− 0.2 V
NCP1030, NCP1031
http://onsemi.com
8
TYPICAL CHARACTERISTICS
Figure 10. Supply Voltage Thresholds vs.
Junction Temperature
Figure 11. Undervoltage Lockout Threshold
vs. Junction Temperature
Figure 12. Minimum Startup Voltage vs.
Junction Temperature
11.0
10.5
10.0
9.5
6.0
6.5
7.0
7.5
9.0
8.5
8.0
V
CC
, SUPPLY VOLTAGE (V)
−50 −25 0 50 150
T
J
, JUNCTION TEMPERATURE (°C)
Figure 13. Reference Voltage vs. Junction
Temperature
75 100 12525
Startup Threshold
Minimum Operating Threshold
T
J
, JUNCTION TEMPERATURE (°C)
Figure 14. COMP Source Current vs. Junction
Temperature
Figure 15. COMP Sink Current vs. Junction
Temperature
−50 −25 0 25 50 1
50
75 100 125
6.80
6.75
6.70
6.65
6.30
6.35
6.40
6.45
6.60
6.55
6.50
V
CC(reset)
, UNDERVOLTAGE LOCKOUT
THRESHOLD (V)
2.70
2.65
2.60
2.55
2.20
2.25
2.30
2.35
2.50
2.45
2.40
V
REF
, REFERENCE VOLTAGE (V)
−25
T
J
, JUNCTION TEMPERATURE (°C)
−50 0 25 50 75 100 125 15
0
V
CC
= 12 V
20.0
19.5
19.0
18.5
15.0
15.5
16.0
16.5
18.0
17.5
17.0
V
START(min)
, MINIMUM STARTUP VOLTAGE (V)
−25
T
J
, JUNCTION TEMPERATURE (°C)
−50 0 25 50 75 100 125 150
V
CC
= V
CC(on)
− 0.2 V
I
START
= 0.5 mA
V
CC
= 12 V
V
COMP
= 2.5 V
V
FB
= 2.3 V
145
140
135
130
95
100
105
110
125
120
115
I
SRC
, COMP SOURCE CURRENT (mA)
−25
T
J
, JUNCTION TEMPERATURE (°C)
−50 0 25 50 75 100 125 150
840
790
740
690
390
440
490
640
590
540
I
SNK
, COMP SINK CURRENT (mA)
340
−25
T
J
, JUNCTION TEMPERATURE (°C)
−50 0 25 50 75 100 125 15
0
V
CC
= 12 V
V
COMP
= 2.5 V
V
FB
= 2.7 V
NCP1030, NCP1031
http://onsemi.com
9
TYPICAL CHARACTERISTICS
Figure 16. Line Under/Overvoltage Thresholds
vs. Junction Temperature
T
J
, JUNCTION TEMPERATURE (°C)
−50 −25 0 50 15075 100 12525
2.600
2.575
2.550
2.525
2.350
2.375
2.400
2.425
2.500
2.475
2.450
V
UV/OV
, LINE UNDER/OVERVOLTAGE THRESHOLDS (V)
200
190
180
170
120
130
160
150
140
V
UV/OV(hys)
, UNDER/OVERVOLTAGE
HYSTERESIS (mV)
−25
T
J
, JUNCTION TEMPERATURE (°C)
−50 0 25 50 75 100 125 150
210
220
Figure 17. Line Under/Overvoltage Hysteresis
vs. Junction Temperature
Figure 18. Oscillator Frequency vs. Timing
Capacitor
Figure 19. Oscillator Frequency vs. Junction
Temperature
1000
900
800
700
0
100
200
300
600
500
400
f
OSC
, OSCILLATOR FREQUENCY (kHz)
C
T
, TIMING CAPACITOR (pF)
Figure 20. Maximum Duty Cycle vs. Junction
Temperature
0 200 400 600 800 1000
V
CC
= 12 V
T
J
= 25°C
T
J
, JUNCTION TEMPERATURE (°C)
Figure 21. Power Switch Circuit On Resistance
vs. Junction Temperature
V
CC
= 12 V
1100
1000
900
800
100
200
400
700
600
500
f
OSC
, OSCILLATOR FREQUENCY (kHz)
−50 −25 0 25 15050 75 100 125
300
C
T
= 47 pF
C
T
= 220 pF
C
T
= 1000 pF
77.0
76.5
76.0
75.5
72.0
72.5
73.0
73.5
75.0
74.5
74.0
DC
MAX
, MAXIMUM DUTY CYCLE (%)
−50 −25 0 25 50 75
T
J
, JUNCTION TEMPERATURE (°C)
100 125 150
f
OSC
= 1000 kHz
f
OSC
= 200 kHz
V
CC
= 12 V
8
7
6
0
1
2
3
5
4
R
DS(on)
, POWER SWITCH CIRCUIT
ON RESISTANCE (W)
−50 −25 0 25 50 75
T
J
, JUNCTION TEMPERATURE (°C)
100 125 150
V
CC
= 12 V
I
D
= 100 mA
NCP1030
NCP1031
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

NCP1031DR2

Mfr. #:
Buy NCP1031DR2
Manufacturer:
ON Semiconductor
Description:
IC CTRLR PWM OTP OVD HV 8SOIC
Lifecycle:
New from this manufacturer.
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