ICE2QR1765Z Datasheet, PDF (15/22 Pages) Infineon Technologies AG – Off-Line SMPS Quasi-Resonant PWM Controller with integrated 650V CoolMOS® and startup cell in DIP-7

CoolSET^® - Q1
ICE2QR1765Z
Electrical Characteristics
4.3.7
Digital Zero Crossing
Parameter
Symbol
Zero crossing threshold voltage V_ZCCT
Ringing suppression threshold V_ZCRS
Minimum ringing suppression t_ZCRS1
time
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
Counter time¹⁾
I_ZCSL
t_COUNT
Limit Values
Unit
min. typ.
max.
50
100
170
mV
-
0.7
-
V
1.62 2.5
4.5
ms
-
25
-
ms
-
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
30
42
57.5 ms
operation
1) _{The parameter is not subjected to production test - verified by design/characterization}
4.3.8
Active Burst Mode
Parameter
Symbol
Feedback voltage for entering V_FBEB
Active Burst Mode
Minimum Up/down value for
entering Active Burst Mode
N_{ZC_ABM}
Blanking time for entering Active t_BEB
Burst Mode
Feedback voltage for leaving
Active Burst Mode
V_FBLB
Feedback voltage for burst-on
Feedback voltage for burst-off
V_FBBOn
V_FBBOff
Limit Values
Unit
min. typ.
max.
-
1.25 -
V
-
7
-
-
24
-
ms
-
4.5
-
V
-
3.6
-
V
-
3.0
-
V
Test Condition
Version 2.1
15
August 30, 2011