ICE2QS02G Datasheet, PDF (14/17 Pages) Infineon Technologies AG – Quasi-Resonant PWM Controller

Quasi-Resonant PWM Controller
ICE2QS02G
Electrical Characteristics
4.3.7
Digital Zero Crossing
Parameter
Symbol
Limit Values
Unit Test Condition
min. typ.
max.
Zero crossing threshold voltage
Maximum current out from zero
crossing pin¹⁾
V_ZCCT
I_ZCMAX
50
100
170
mV
2.5
-
-
mA
Threshold to set Up/Down
V_FBZR1
3.78 3.9
4
V
Counter to one
Threshold for downward
counting at low line
V_FBZHL
3.10 3.2
3.32 V
Threshold for upward counting V_FBZLL
at low line
2.38 2.5
2.62 V
Threshold for downward
counting at high line
V_FBZHH
2.55 2.7
2.90 V
Threshold for upward counting V_FBZLH
at highline
2.18 2.3
2.42 V
ZC current for IC switches
I_ZCHL
-
1.3
-
mA
threshold to high line
ZC current for IC switches
I_ZCLL
-
0.8
-
mA
threshold to low line
Counter time¹⁾
t_COUNT
48
ms
1) _{The parameter is not subjected to production test - verified by design/characterization}
4.3.8
Protection
Parameter
Symbol
Overload or Open Loop
Detection threshold for OLP
protection at FB pin
V_FBOLP
Charging current at BL pin
Threshold for adjustable
overload blanking time
I_BL
V_BLH
Threshold for adjustable restart V_BLL
time
Output Overvoltage Detection V_ZCOVP
threshold at the ZC pin
Blanking time for output
overvoltage protection¹⁾
t_ZCOVP
Threshold for short winding
protection
V_CSSW
Blanking time for short winding t_CSSW
protection
Limit Values
Unit
min. typ.
max.
4.4
4.5
4.6
V
12
20
3.80 3.9
28
µA
4.01 V
0.4
0.5
0.6
V
4.4
4.5
4.6
V
-
100
-
µs
1.63 1.68 1.78 V
-
190
-
ns
Test Condition
Version 2.0
14
13 June 2008