FAN7621SJ datasheet(7/17 Pages) FAIRCHILD

Part #	FAN7621SJ

Description	PFM Controller for Half-Bridge Resonant Converters

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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FAN7621 • Rev. 1.0.3

7

Typical Performance Characteristics

These characteristic graphs are normalized at TA=25ºC.

0.9

0.95

1

1.05

1.1

-50

-25

0

25

50

75

100

Temp (OC)

0.9

0.95

1

1.05

1.1

-50

-25

0

25

50

75

100

Figure 4. Low-Side MOSFET Duty Cycle

vs. Temperature

Figure 5. Switching Frequency vs. Temperature

0.9

0.95

1

1.05

1.1

-50

-25

0

25

50

75

100

Temp (OC)

0.9

0.95

1

1.05

1.1

-50

-25

0

25

50

75

100

Temp (OC)

Figure 6. High-Side VCC (HVCC) Start vs. Temperature

Figure 7. High-Side VCC (HVCC) Stop vs. Temperature

0.9

0.95

1

1.05

1.1

-50

-25

0

25

50

75

100

Temp (OC)

0.9

0.95

1

1.05

1.1

-50

-25

0

25

50

75

100

Temp (OC)

Figure 8. Low-Side VCC (LVCC) Start vs. Temperature

Figure 9. Low-Side VCC (LVCC) Stop vs. Temperature

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