ICE2QR0665G_14 Datasheet, PDF (20/27 Pages) Infineon Technologies AG – Off-Line SMPS Quasi-Resonant PWM Controller with integrated 650V CoolMOS? and startup cell in DSO-16/12

4.3.7 Digital Zero Crossing
Parameter
Symbol
Zero crossing threshold
voltage
Ringing suppression threshold
Minimum ringing suppression
time
Maximum ringing suppression
time
Threshold to set Up/Down
Counter to one
Threshold for downward
counting at low line
Threshold for upward counting
at low line
Threshold for downward
counting at high line
Threshold for upward counting
at high line
ZC current for IC switch
threshold to high line
ZC current for IC switch
threshold to low line
Counter time¹
Maximum restart time in
normal operation
V_ZCCT
V_ZCRS
t_ZCRS1
t_ZCRS2
V_FBR1
V_FBZHL
V_FBZLL
V_FBZHH
V_FBZLH
I_ZCSH
I_ZCSL
t_COUNT
t_OffMax
Limit Values
min. typ. max.
50
100
170
-
0.7
-
1.62 2.5
4.5
-
25
-
-
3.9
-
-
3.2
-
-
2.5
-
-
2.9
-
-
2.3
-
-
1.3
-
-
0.8
-
-
48
-
30
42
57.5
CoolSET™Q1
ICE2QR0665G
Electrical Characteristics
Unit
Test Condition
mV
V
μs V_ZC > V_ZCRS
μs V_ZC < V_ZCRS
V
V
V
V
V
mA
mA
ms
μs
4.3.8 Active Burst Mode
Parameter
Symbol
Feedback voltage for entering
Active Burst Mode
Minimum Up/down value for
entering Active Burst Mode
Blanking time for entering
Active Burst Mode
Feedback voltage for leaving
Active Burst Mode
Feedback voltage for burst-on
Feedback voltage for burst-off
V_FBEB
N_{ZC_ABM}
t_BEB
V_FBLB
V_FBBOn
V_FBBOff
Limit Values
min. typ. max.
-
1.25
-
-
7
-
-
24
-
-
4.5
-
-
3.6
-
-
3.0
-
Unit Test Condition
V
ms
V
V
V
1_{The parameter is not subjected to production test - verified by design/characterization}
Data Sheet
20
V2.1, 2014-04-01