ICB2FL02G Infineon Technologies, ICB2FL02G Datasheet - Page 18

• Manufacturer Part Number: ICB2FL02G
• Description: IC SMART BALLAST CONTROL DSO-19
• Manufacturer: Infineon Technologies
• Type: Ballast Controllerr

Specifications of ICB2FL02G

• Frequency: 20 ~ 120 kHz
• Current - Supply: 4.2mA
• 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: -
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Details
• Other names: ICB2FL02GINTR

2.3.2 Low Side Filament Detection during Run Mode
In case of an open low side filament during Run mode, the current out of the RES pin I
charges up the capacitor C19 in Figure 3. If the voltage at the RES pin exceeds the V
threshold, the controller detects an open low side filament and stops the gate drives after a delay of t =
620µs of an internal timer.
A restart is initiated when a filament is detected e.g. in case of a lamp removal. In case of a filament is
present (Figure 11 section 2), the voltage drops below 1.3V and the value of the source current out of
the RES pin is set from I
including Soft Start and Preheating into the Run mode (Figure 11 section 3).
Preliminary Datasheet
Figure 10 Open Low Side Filament Run Mode
V
CC
/ V
21.3µA
17.7µA
17.5 V
16.0 V
10.0 V
PFCGD
V
5.0 V
3.2 V
1.6 V
1.3 V
V
RES
I
Lamp
RES
Chip Supply Voltage
PFC Gate Drive
Open LOW Side Filament during Run Mode
RES4
Delay t = 620µs
= - 17.7 µA up to I
Latch Mode
2
nd
Generation FL-Controller for FL-Ballasts
Page 18 of 55
Time
Time
Time
Time
RES3
= - 21.3 µA. The controller powers up the system
Figure 11 Restart from open LS Filament
21.3µA
17.7µA
17.5 V
16.0 V
10.0 V
V
5.0 V
1.6 V
1.3 V
V
RES
I
Lamp
RES
Chip Supply Voltage
Latch Mode
Restart from open LOW Side Filament
1
2
Functional Description
Power UP into RUN Mode
PFC Gate Drive
3
Timer t = 100ms
RES3
RES3
= 3.2V
ICB2FL02G
= - 21.3 µA
Time
Time
Time
Time
V1.2