IX9908

R01

www.ixysic.com

5

1.5.6 Foldback Point Correction

1.5.7 Digital Zero Crossing

1.5.8 Protection

1.5.9 Gate Drive

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Unit

ZCV Current First Step Threshold

-

0.35

0.5

0.621

mA

ZCV Current Last Step Threshold

-

1.3

1.85

2.3

mA

CS Threshold Minimum

-0.66

-

V

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Unit

Zero Crossing Voltage

-

50

100

170

mV

Ringing Suppression Threshold

-

-0.7

-

V

Minimum Ringing Suppression Time

1.62

2.5

4.5

s

Maximum Ringing Suppression Time

-42-

s

Maximum Restart Time in Normal Operation

-

30

42

57.5

s

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Unit

-

24

25

26

V

Output Overvoltage Detection Threshold at the ZCV Pin

-

3.55

3.7

3.87

V

Blanking Time for Output Overvoltage Protection

-

-100

-

s

Threshold for Short Winding Protection

-

1.60

1.68

1.78

V

Blanking Time for Short Winding Protection

-

-190

-

ns

Over-Temperature Protection

-

-140

-

Parameter

Conditions

Symbol

Minimum

Typical

Maximum

Unit

Output Voltage at Logic Low

--

1

V

Output Voltage at Logic High

910

-

V

Output Voltage Active Shut-Down

--

1

V

Rise Time

-117

-

ns

Fall Time

-27-

ns