ICE2QS03 Datasheet, PDF (15/19 Pages) Infineon Technologies AG – Quasi-Resonant PWM Controller

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
V_ZCCT
V_ZCRS
t_ZCRS1
Maximum ringing suppression t_ZCRS2
time
Threshold to set Up/Down
Counter to one
V_FBR1
Threshold for downward
counting at low line
V_FBZHL
Threshold for upward counting V_FBZLL
at low line
Threshold for downward
counting at hig line
V_FBZHH
Threshold for upward counting V_FBZLH
at highline
ZC current for IC switch
threshold to high line
I_ZCSH
ZC current for IC switch
threshold to low line
I_ZCSL
Counter time¹⁾
t_COUNT
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
V_ZC > V_ZCRS
V_ZC < V_ZCRS
Maximum restart time in normal t_OffMax
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