ICE2QS02G Datasheet, PDF (13/17 Pages) Infineon Technologies AG – Quasi-Resonant PWM Controller

Quasi-Resonant PWM Controller
ICE2QS02G
Electrical Characteristics
4.3.3
PWM Section
Parameter
Regulation Pull-Up Resistor
PWM-OP Gain
Offset for Voltage Ramp
Symbol
R_FB
G_PWM
V_PWM
Limit Values
Unit
min. typ.
max.
13
20
30
kΩ
3.15 3.3
3.47
0.6
0.7
0.85 V
Test Condition
4.3.4
Current Limit
Parameter
Peak cuurent limitation in
normal operation
Leading Edge Blanking
Symbol
V_CSTH
t_LEB
Limit Values
Unit
min. typ.
max.
0.94 1.02 1.10 V
180
280
450
ns
Test Condition
4.3.5
Soft Start
Parameter
Symbol
Soft-Start time
soft-start time step ¹⁾
Internal regulation voltage at
first step ¹⁾
Internal regulation voltage step
at soft start ¹⁾
t_SS
t_SSS
V_SS1
V_SSS
Limit Values
Unit
min. typ.
max.
11.8 16
-
ms
4
ms
-
1.8
-
V
-
0.55 -
V
Test Condition
4.3.6
Foldback Point Correction
Parameter
FBC start point
CS threshold minimum
Symbol
min.
V_{CS_FBC_S}
-
V_{CS_FBC_MIN} -
Limit Values
typ.
max.
1.02 -
0.65 -
Unit
V
V
Test Condition
I_ZC=0.5mA
I_ZC=1.8mA
Version 2.0
13
13 June 2008