ICE2QS03 Datasheet, PDF (16/19 Pages) Infineon Technologies AG – Quasi-Resonant PWM Controller

Quasi-Resonant PWM Controller
ICE2QS03
Electrical Characteristics
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
Fixed Switching Frequency in
Active Burst Mode
V_FBBOn
V_FBBOff
f_sB
Max. Duty Cycle in Active Burst D_maxB
Mode
Limit Values
Unit
min. typ.
max.
-
1.25 -
V
7
-
24
-
ms
-
4.5
-
V
-
3.6
-
V
3.0
V
-
52
-
kHz
-
0.5
-
Test Condition
4.3.9
Protection
Parameter
Symbol
VCC overvoltage threshold
Over Load or Open Loop
Detection threshold for OLP
protection at FB pin
V_VCCOVP
V_FBOLP
Over Load or Open Loop
Protection Blanking Time
t_{OLP_B}
Output Overvoltage detection
threshold at the ZC pin
V_ZCOVP
Blanking time for Output
Overvoltage protection
t_ZCOVP
Threshold for short winding
protection
V_CSSW
Blanking time for short-windding t_CSSW
protection
Over temperature protection¹⁾ T_jCon
Limit Values
Unit
min. typ.
max.
24.0 25.0 26.0 V
4.5
V
20
30
44
ms
3.55 3.7
3.84 V
100
µs
1.63 1.68 1.78 V
-
190
-
ns
-
140
-
0_C
Test Condition
Note: The trend of all the voltage levels in the Control Unit is the same regarding the deviation except V_VCCOVP
Version 2.0
16
December 4, 2009