ICB2FL01G Infineon Technologies, ICB2FL01G Datasheet - Page 24

• Manufacturer Part Number: ICB2FL01G
• Description: IC SMART BALLAST CONTROL DSO-19
• Manufacturer: Infineon Technologies
• Type: PFC/Ballast Controllerr

Specifications of ICB2FL01G

• Frequency: 20 ~ 120 kHz
• Current - Supply: 4.2mA
• Voltage - Supply: 10.6 V ~ 17.5 V
• Operating Temperature: -25°C ~ 125°C
• Package / Case: DSO-19
• Packages: PG-DSO-19
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Details
• Other names: SP000363741

Figure 18: Signal Shapes with optional damping
of oscillations during DCM operation of PFC
Output current
at Pin AUX in DCM
PFC Gate Source
Voltage
PFC Drain Source
Voltage
Voltage at PFC
ZCD winding
with damping
The relationship between the extended PFC pulse width and the zero crossing detection current is
shown in Figure 19.
2.4.5 Optional THD Correction dedicated for DCM Operation
For applications with a wide input voltage range and / or for applications using a wide variation of the
power e.g. dimming, the application might work in the DCM (Discontinuous Conduction Mode). In
order to minimize the high order harmonics during DCM, the detection of the DCM should be as close
as possible at the point of inflection of the PFC drain source voltage shown in Figure 18. This can be
realized with an optional damping network (R4, D10 and Q4 from the AUX pin to the ZCD resistor
R13.
Figure 20: Optional Circuit for attenuating oscillations during DCM operation of PFC.
Datasheet
0
0
0
0
Detection
CritCM
2
nd
Generation FL-Controller for FL-Ballasts
Detection
DCM
Page 24 of 56
t
t
t
t
Figure 19: PFC ON Time Extension versus Zero
Crossing Current Signal
Functional Description
ICB2FL01G
V1.2