NCP4305QDR2G datasheet(10/52 Pages) ONSEMI

Part #	NCP4305QDR2G

Description	Secondary Side Synchronous Rectification Driver

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP4305

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TYPICAL CHARACTERISTICS

Figure 15. CS Current, VCS = −20 mV

Figure 16. CS Current, VCC = 12 V

TJ (°C)

VCS (V)

100

80

60

40

20

0

−20

−40

−110

−106

−104

−100

−98

−96

−94

−90

0.8

0.6

0.2

0

−0.2

−0.4

−0.8

−1.0

−1.4

−1.2

−1.0

−0.8

−0.6

−0.4

−0.2

0

Figure 17. Supply Current vs. CS Voltage,

VCC = 12 V

Figure 18. CS Turn−on Threshold

VCS (V)

TJ (°C)

3

2

1

0

−1

−2

−3

−4

0

0.5

1.0

1.5

2.0

2.5

3.0

100

80

60

40

20

0

−20

−40

−150

−130

−110

−90

−70

−50

−30

Figure 19. CS Turn−off Threshold

Figure 20. CS Reset Threshold

TJ (°C)

100

80

60

40

20

0

−20

−40

−2.0

−1.5

−1.0

−0.5

0

0.5

1.0

0.40

0.45

0.50

0.55

0.60

120

−92

−102

−108

−0.6

0.4

1.0

4

TJ = 125°C

TJ = 85°C

TJ = 55°C

TJ = 25°C

TJ = 0°C

TJ = −20°C

TJ = −40°C

TJ = 125°C

TJ = 85°C

TJ = 55°C

TJ = 25°C

TJ = 0°C

TJ = −20°C

TJ = −40°C

120

100

80

60

40

20

0

−20

−40

120

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