Parallelable Secondary-Side Synchronous Rectifier

Driver and Feedback-Generator Controller ICs

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9

ZERO-CURRENT PROPAGATION DELAY

vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

-25 -10 5

35 50 65

20

80

55

60

65

70

75

80

85

90

50

-40

125

10mV OVERDRIVE

SFA AMPLIFIER MAXIMUM

SINK CURRENT vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

65 80

-10 5

20 35 50

-25

32.2

32.4

32.6

32.8

33.0

33.2

33.4

33.6

33.8

34.0

32.0

-40

125

SFP = +2.5V

SFN = 0V

CURRENT-ADJUST VOLTAGE TO CURRENT-

CONVERTER ADJUSTMENT RANGE

vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

65 80

-10 5

20 35 50

-25

1.51

1.52

1.53

1.54

1.55

1.56

1.57

1.58

1.59

1.60

1.50

-40

125

Typical Operating Characteristics (continued)

°C, unless otherwise noted.)

BUFIN TO QREC LOW-TO-HIGH

PROPAGATION DELAY vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

65 80

-10 5

20 35 50

-25

29

30

31

32

33

34

35

36

37

38

39

40

41

42

28

-40

125

BUFIN TO QREC HIGH-TO-LOW

PROPAGATION DELAY vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

65 80

-10 5

20 35 50

-25

34

36

38

40

42

44

46

48

50

52

54

56

58

60

32

30

-40

125

BUFIN TO QSYNC LOW-TO-HIGH

PROPAGATION DELAY vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

65 80

-10 5

20 35 50

-25

48

50

52

54

56

58

60

44

42

40

46

-40

125

BUFIN TO QSYNC HIGH-TO-LOW

PROPAGATION DELAY vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

65 80

-10 5

20 35 50

-25

-40

125

28

30

32

34

36

38

40

24

22

20

26