ICE2QS03(2009) データシートの表示（PDF） - Infineon Technologies

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ICE2QS03
(Rev.:2009)

Quasi-Resonant PWM Controller

Infineon Technologies 

Quasi-Resonant PWM Controller

ICE2QS03

Electrical Characteristics

4.3.7

Digital Zero Crossing

Parameter

Symbol

Zero crossing threshold voltage

Ringing suppression threshold

Minimum ringing suppression

time

VZCCT

VZCRS

tZCRS1

Maximum ringing suppression tZCRS2

time

Threshold to set Up/Down

Counter to one

VFBR1

Threshold for downward

counting at low line

VFBZHL

Threshold for upward counting VFBZLL

at low line

Threshold for downward

counting at hig line

VFBZHH

Threshold for upward counting VFBZLH

at highline

ZC current for IC switch

threshold to high line

IZCSH

ZC current for IC switch

threshold to low line

IZCSL

Counter time1)

tCOUNT

Limit Values

Unit

min. typ.

max.

50

100

170

mV

-

0.7

-

V

1.8

2.5

3.4

µs

-

25

-

µs

3.9

V

3.2

V

2.5

V

2.9

V

2.3

V

-

1.3

-

mA

-

0.8

-

mA

48

ms

Test Condition

VZC > VZCRS

VZC < VZCRS

Maximum restart time in normal tOffMax

operation

30

42

57.5 µs

1) The parameter is not subjected to production test - verified by design/characterization

Version 2.0

15

December 4, 2009

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