ICB2FL02G Datasheet, PDF (35/55 Pages) Infineon Technologies AG – Smart Ballast Control IC for Fluorescent Lamp Ballasts

2^nd Generation FL-Controller for FL-Ballasts
2.8.2 Deactivation of the Filament Detection
Functional Description
In order to deactivate the filament detection of the low or high side filament, set the RES pin 12 or the
LVS1 / LVS2 pin 13 / 14 to GND. In that case, the IC starts up into normal operation without checking
the filaments e.g. when using an equivalent lamp resistive load instead of a load.
VCC
17.5 V
16.0 V
Chip Supply Voltage
V_CC
17.5 V
16.0 V
Chip Supply Voltage
14.1 V
14.1 V
10.6 V
10.6 V
Start Up
VRES ^UVLO Hysteresis
5.0 V
1.6 V
1.3 V
RES PIN set to GND
10V
Time
Time
VRES
UVLO
Start Up
Hysteresis
5.0 V
LVS1 or LVS2 PIN set to GND
1.6 V
1.3 V
V_LSGD
10V
Time
V_Lamp
Time
V_Lamp
Time
Figure 32 Deactivation via RES PIN
Figure 33 Deactivation via LVS1 / LVS2 PIN
Figure 32 shows the deactivation of the low and high side filament via set the RES pin 12 to GND.
Figure 33 shows the deactivation of the high side filament detection via set the LVS1 or LVS2 pin to
GND.
Note
In case using just one path of a ballast design (single or dual lamp in series) one of the not used LVS
pins has to be set to GND.
Preliminary Datasheet
Page 35 of 55
ICB2FL02G
V1.2