ICB2FL03G Datasheet, PDF (22/60 Pages) Infineon Technologies AG – 2nd Generation FL Controller for Fluorescent Lamp Ballasts

ICB2FL03G
Controller for Fluorescent Lamp Ballasts
Functional Description
V_CC
17.5 V
16.0 V
14.0 V
Restart from open HIGH Side Filament
Chip Supply Voltage
10.6 V
V_RES
2.0 V
1.6 V
1.3 V
No Power Up
I_RES
42.6µA
35.4µA
21.3µA
17.7µA
I_LVS
12µA
V_Lamp
I_RES
I_LVS
Time
Power UP (into RUN Mode)
Time
Time
Time
Time
Figure 13 Restart from Open High Side Filament
When the high side filament is present, e.g. insertion of a lamp, the current of the active LVS pin exceeds I_LVS >
12 μA (typically), the RES current drops from I_RES2 = -35.4 μA down to I_RES4 = -17.7 μA (Figure 13). The controller
then senses the low side filament. If a low side filament is also present, and the controller drops (after a short delay
due to a capacitor at the RES pin) below V_RES2 = 1.3 V, the RES current is set to I_RES3 = -21.3 μA, and the controller
powers up the system.
Final Data Sheet
22
V1.1, 2013-08-14