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NCP1252ADR2G

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
NCP1252
www.onsemi.com
7
TYPICAL CHARACTERISTICS
Figure 9. Supply Current (I
CC3
) vs. Supply
Voltage
Figure 10. Current Sense Voltage Threshold
vs. Junction Temperature
SUPPLY VOLTAGE Vcc (V) TEMPERATURE (°C)
3025201510
0
1
2
3
4
120806040200−20−40
0.92
0.94
0.96
0.98
1.00
1.04
1.06
1.08
Figure 11. Leading Edge Blanking Time vs.
Junction Temperature
Figure 12. Leading Edge Blanking Time vs.
Supply Voltage
TEMPERATURE (°C) SUPPLY VOLTAGE Vcc (V)
100806040200−20−40
0
50
100
150
200
250
300
3025201510
0
50
100
150
200
250
300
SUPPLY CURRENT ICC3 (mA)
CURRENT SENSE VOLTAGE
THRESHOLD (V)
LEADING EDGE BLANKING TIME (ns)
LEADING EDGE BLANKING TIME (ns)
100
1.02
120
Figure 13. Propagation Delay from CS to DRV
vs. Junction Temperature
Figure 14. Propagation Delay from CS to DRV
vs. Supply Voltage
TEMPERATURE (°C) SUPPLY VOLTAGE Vcc (V)
1201008060200−20−40
0
20
40
60
80
100
140
160
3025201510
0
20
40
60
80
120
140
160
PROPAGATION DELAY (ns)
PROPAGATION DELAY (ns)
120
40
100
NCP1252
www.onsemi.com
8
TYPICAL CHARACTERISTICS
Figure 15. Oscillator Frequency vs. Junction
Temperature
Figure 16. Oscillator Frequency vs. Supply
Voltage
TEMPERATURE (°C) SUPPLY VOLTAGE Vcc (V)
120806040200−20−40
92
94
96
98
100
104
106
108
3
0
25201510
92
94
96
98
100
104
106
108
Figure 17. Oscillator Frequency vs. Oscillator
Resistor
Rt RESISTOR (kW)
TEMPERATURE (°C)
100806040200
0
50
150
200
300
350
400
500
100806040200−20−40
45
46
48
49
OSCILLATOR FREQUENCY @ Rt = 43 k
W
(kHz)
SWITCHING FREQUENCY, F
SW
(kHz)
MAXIMUM DUTY CYCLE (%)
102
100
102
OSCILLATOR FREQUENCY @ Rt = 43 kW (kHz
)
100
250
450
47
120
Figure 18. Maximum Duty−cycle, A Version vs.
Junction Temperature
Figure 19. Maximum Duty−cycle, B Version vs.
Junction Temperature
TEMPERATURE (°C)
100806040200−20−40
76
77
78
79
80
82
83
84
MAXIMUM DUTY CYCLE (%)
120
81
NCP1252
www.onsemi.com
9
TYPICAL CHARACTERISTICS
Figure 20. Maximum Duty−cycle, C Version vs.
Junction Temperature
TEMPERATURE (°C)
100806040200−20−40
0
2
4
6
8
10
12
14
TEMPERATURE (°C)
SUPPLY VOLTAGE Vcc (V)
100806040200−20−40
10
12
14
16
20
3025201510
10
12
14
16
18
20
TEMPERATURE (°C)
100806040200−20−40
0
0.1
0.2
0.4
0.5
0.7
0.9
1.0
DRIVE SINK AND SOURCE RESIST-
ANCE (W)
DRIVE CLAMPING VOLTAGE (V)
DRIVE CLAMPING VOLTAGE (V)
SKIP CYCLE THRESHOLD (V)
120
ROH
ROL
120
18
0.3
0.6
0.8
120
TEMPERATURE (°C)
100806040200−20−40
44.0
44.5
45.0
45.5
46.0
47.0
MAXIMUM DUTY CYCLE (%)
120
46.5
Figure 21. Maximum Duty−cycle, D Version vs.
Junction Temperature
Figure 22. Drive Sink and Source Resistances
vs. Junction Temperature
Figure 23. Drive Clamping Voltage vs.
Junction Temperature
Figure 24. Drive Clamping Voltage vs. Supply
Voltage
Figure 25. Skip Cycle Threshold vs. Junction
Temperature
TEMPERATURE (°C)
100806040200−20−40
61
62
63
64
65
67
68
69
MAXIMUM DUTY CYCLE (%)
120
66
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

NCP1252ADR2G

Mfr. #:
Buy NCP1252ADR2G
Manufacturer:
ON Semiconductor
Description:
Switching Controllers CURR MDE PWM CNTRLR FWD FLYBCK APPS
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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