ICB2FL01GXT Infineon Technologies, ICB2FL01GXT Datasheet - Page 34

• Manufacturer Part Number: ICB2FL01GXT
• Manufacturer: Infineon Technologies

Specifications of ICB2FL01GXT

• Driver Type: Fluorescent Lamp
• Number Of Segments: 1
• Operating Temperature (min): -25C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Commercial
• Package Type: DSO
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

This feature gives the customer the flexibility to align the pre heating frequency to the filament power
in the pre heating phase. Figure 32 shows a standard start up with the set preheating time of e.g.
820ms with an 8.2 kΩ resistor at the RTPH pin 11. To force the IC remains in pre heating, the voltage
level at the RTPH pin 11 has to set to 5.0 V. The duration of this 5.0 V signal defines the time of the
pre heating see I
Datasheet
Figure 32: Start UP with Pre Heating
I
V
17.5 V
16.0 V
14.1 V
10.6 V
PreHeat
V
5.0 V
2.5 V
V
RTPH
CC
Lamp
2.8.1.2
UVLO
Hysteresis
Start Up
t = 820 ms when using
PreHeat
RRTPH = 8.2kOhm
Duration is set by
Resistor only
Preheating
IC remains in Pre Heating Phase
Chip Supply Voltage
in figure below.
IGNITION
2
nd
Generation FL-Controller for FL-Ballasts
Page 34 of 56
Time
Time
Time
Time
Figure 33: Start UP REMAINS in Pre Heating
Functional Description
ICB2FL01G
V1.2