ice2qr4765z Infineon Technologies Corporation, ice2qr4765z Datasheet - Page 15

• Manufacturer Part Number: ice2qr4765z
• Description: Off-line Smps Quasi-resonant Pwm Controller With Integrated 650v Coolmos And Startup Cell In Dip- 7
• Manufacturer: Infineon Technologies Corporation

4.3.7
Parameter
Zero crossing threshold voltage
Ringing suppression threshold
Minimum ringing suppression time t
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 hig line
Threshold for upward counting at
highline
ZC current for IC switch threshold
to high line
ZC current for IC switch threshold
to low line
Counter time
Maximum restart time in normal
operation
1)
4.3.8
Parameter
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
Version 2.0
The parameter is not subjected to production test - verified by design/characterization
Digital Zero Crossing
1)
Active Burst Mode
Symbol
V
V
t
V
V
V
V
V
I
I
t
t
Symbol
V
N
t
V
V
V
ZCRS1
ZCRS2
COUNT
OffMax
BEB
ZCSH
ZCSL
ZCCT
ZCRS
FBR1
FBZHL
FBZLL
FBZHH
FBZLH
FBEB
ZC_ABM
FBLB
FBBOn
FBBOff
min.
50
-
1.62
-
-
-
-
-
-
-
-
-
30
min.
-
-
-
-
-
-
15
Limit Values
Limit Values
typ.
100
0.7
2.5
25
3.9
3.2
2.5
2.9
2.3
1.3
0.8
48
42
typ.
1.25
7
24
4.5
3.6
3.0
max.
170
-
4.5
-
-
-
-
-
-
-
-
-
57.5
max.
-
-
-
-
-
-
Unit
mV
V
s
s
V
V
V
V
V
mA
mA
ms
s
Unit
V
ms
V
V
V
Electrical Characteristics
Test Condition
V
V
Test Condition
ZC
ZC
CoolSET
ICE2QR4765Z
> V
< V
ZCRS
ZCRS
May 25, 2011
®
- Q1