ICE2QS01 View Datasheet(PDF) - Infineon Technologies
Part Name
Description
MFG CO.
'ICE2QS01' PDF : 17 Pages View PDF
Quasi-Resonant PWM Controller
ICE2QS01
Electrical Characteristics
4.3.2
PWM Section
Parameter
Symbol
Limit Values
Unit Test Condition
min. typ.
max.
Regulation Pull-Up Resistor
RREG
PWM-OP Gain
AV
Offset for Voltage Ramp
VOS
Soft-Start time
tSOFTS
Zero crossing threshold voltage VZCT1
Ringing suppression threshold VZCT2
Minimum ringing suppression
time
tZCRST1
14
23
3.18 3.3
0.63 0.7
18
21
20
50
0.7
2.2
4.2
33
kΩ
-
-
-
V
38
ms
110
mV
V
5.5
µs
VZC > VZCT2
Maximum ringing suppression tZCRST2
-
time
42
-
µs
VZC < VZCT2
Threshold to set Up/Down
VRM
Counter to one
3.9
V
Threshold for downward
VRH
counting
3.2
V
Threshold for upward counting VRL
2.5
V
Counter time1)
tCOUNT
48
ms
Maximum restart time in normal tsMax
operation
33
42
60
µs
VZC<VZCT1
Leading Edge Blanking
tLEB
Peak current limitation in normal Vcsth
operation
200
330
0.95 1.0
460
ns
1.05 V
Regulation voltage for entering VEB
Burst Mode
1.1
V
Regulation voltage for leaving VLB
Burst Mode
4.5
V
Regulation voltage for burst-on VBH
Regulation voltage for burst-off VBL
Fixed Switching Frequency in fsB
Burst Mode
3.6
V
3.0
V
64
80
96
kHz
Max. Duty Cycle in Burst Mode
Peak Current Limitation in Burst
Mode
DmaxB
VcsB
0.5
0.22 0.25 0.3
V
1) The parameter is not subject to production test - verified by design/characterization
Version 2.1
14
26 October 2007
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