NCP1450A ON, NCP1450A Datasheet - Page 8

• Manufacturer Part Number: NCP1450A
• Description: PWM Step-up DC-DC Controller
• Manufacturer: ON

250
300
200
150
100
300
250
200
150
100
100
50
50
90
80
70
60
50
40
0
0
-50
-50
-50
Figure 25. NCP1450ASN30T1 Maximum Duty
NCP1450ASN19T1
V
Open-Loop Test
NCP1450ASN50T1
V
Open-Loop Test
NCP1450ASN30T1
V
Open-Loop Test
OUT
OUT
OUT
Figure 21. NCP1450ASN19T1 Oscillator
Figure 23. NCP1450ASN50T1 Oscillator
-25
-25
-25
= 1.9 V x 0.96
= 5.0 V x 0.96
= 3.0 V x 0.96
Frequency vs. Temperature
Frequency vs. Temperature
Cycle vs. Temperature
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
0
25
25
25
50
50
50
75
75
75
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NCP1450A
100
100
100
8
300
250
200
150
100
100
100
50
90
80
70
60
50
40
90
80
70
60
50
40
0
-50
-50
-50
Figure 24. NCP1450ASN19T1 Maximum Duty
Figure 26. NCP1450ASN50T1 Maximum Duty
NCP1450ASN30T1
V
Open-Loop Test
NCP1450ASN19T1
V
Open-Loop Test
NCP1450ASN50T1
V
Open-Loop Test
OUT
OUT
OUT
Figure 22. NCP1450ASN30T1 Oscillator
-25
-25
-25
= 3.0 V x 0.96
= 1.9 V x 0.96
= 5.0 V x 0.96
Frequency vs. Temperature
Cycle vs. Temperature
Cycle vs. Temperature
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
0
25
25
25
50
50
50
75
75
75
100
100
100