ICB2FL03G Infineon Technologies, ICB2FL03G Datasheet - Page 19

• Manufacturer Part Number: ICB2FL03G
• Description: LED Drivers
• Manufacturer: Infineon Technologies

Specifications of ICB2FL03G

• Packages: PG-DSO-16
• Lead Free Status / Rohs Status: Details
• Other names: ICB2FL03GXT

2.3
The low and high side filament detection is sensed via the RES and the LVS pins. The low side filament detection
during start-up and run mode is detected via the RES pin only. An open high side filament during start-up will be
sensed via the LVS and the RES pins.
2.3.1
A source current of I
start-up (also in run mode). In the case of an open low side filament during the start-up hysteresis (10.6 V < V
< 14.0 V) a capacitor (C19 in
(13) exceeds V
= 5.0 V. The gate drives of the PFC and inverter stage do not start working.
Figure 8
Figure 9
Preliminary Data Sheet
Filament Detection during Start-Up and Run Mode
Start-Up with broken Low Side Filament
Start-Up with Open Low Side Filament
Restart from Open Low Side Filament
RES1
= 1.6 V, the controller prevents a power up and clamps the RES voltage internally at V
RES3
= -21.3 µA from the RES pin (13) monitors the existence of a low side filament during a
Figure
21.3µA
17.7µA
17.5 V
16.0 V
14.0 V
10.6 V
V
1.6 V
V
21.3µA
17.7µA
17.5 V
V
5.0 V
1.3 V
16.0 V
10.0 V
V
I
Lamp
5.0 V
1.6 V
RES
1.3 V
V
CC
RES
RES
I
Lamp
RES
3) will be charged up via I
UVLO
Chip Supply Voltage
Latch Mode
Hysteresis
Start Up
Restart from open LOW Side Filament
1
Start UP with open LOW Side Filament
No Power UP
2
Chip Supply Voltage
Power UP into RUN Mode
19
Controller for Fluorescent Lamp Ballasts
PFC Gate Drive
3
Timer t = 100 ms
RES3
= -21.3 µA. When the voltage at the RES pin
Time
Time
Time
Time
Time
Time
Time
Time
Functional Description
V1.1, 2012-04-10
ICB2FL03G
RES
CC