NCP1252APG datasheet(9/18 Pages) ONSEMI

Part #	NCP1252APG

Description	Current Mode PWM Controller for Forward and Flyback Applications

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP1252

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TYPICAL CHARACTERISTICS

Figure 23. Soft Start Current vs. Junction

Temperature

Figure 24. Soft Start Completion Voltage

Threshold vs. Junction Temperature

TEMPERATURE (°C)

120

80

60

40

20

0

−20

−40

3.0

3.5

4.0

4.5

5.0

100

80

60

40

20

0

−20

−40

0.90

0.92

0.96

0.98

1.02

1.04

1.08

1.10

Figure 25. Brown Out Voltage Threshold vs.

Junction Temperature

Figure 26. Brown Out Voltage Threshold vs.

Supply Voltage

SUPPLY VOLTAGE Vcc (V)

TEMPERATURE (°C)

30

25

20

15

10

0.90

0.92

0.94

0.98

1.02

1.04

1.08

1.10

100

80

60

40

20

0

−20

−40

8.0

8.5

9.0

9.5

10.0

11.0

11.5

12.0

Figure 27. Internal Brown Out Current Source

vs. Junction Temperature

SUPPLY VOLTAGE Vcc (V)

30

25

20

15

10

8.0

8.5

9.0

9.5

10.5

11.0

11.5

12.0

100

0.94

1.00

1.06

120

0.96

1.00

1.06

120

10.5

10.0

Figure 28. Internal Brown Out Current Source

vs. Supply Voltage

TEMPERATURE (°C)

120

80

60

40

20

0

−20

−40

8

9

10

11

100

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NCP1252APG Datasheet(PDF) 9 Page - ON Semiconductor

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