ICB2FL02G Infineon Technologies, ICB2FL02G Datasheet - Page 17

• 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
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 Start Up with broken Low Side Filament
A source current of I
mode) the existence of a low side filament. In case of an open low side filament during the start up
hysteresis (10.6V < V
When the voltage at the RES pin (12) exceeds V
clamps the RES voltage internally at V
not start working.
The IC comparators are set now to a threshold of V
waits until the voltage at the RES pin drops below V
section 2), the voltage drops below 1.3V and the value of the source current out of the RES pin is set
from I
Start and Preheating into the Run mode.
Preliminary Datasheet
Figure 8 Startup with open Low Side Filament
17.7µA
21.3µA
17.5 V
16.0 V
14.1 V
10.6 V
V
V
1.6 V
5.0 V
V
1.3 V
I
Lamp
RES
CC
RES
RES4
UVLO
Filament Detection during Start Up and Run Mode
Hysteresis
= - 17.7 µA up to I
Start Up
Start UP with open LOW Side Filament
No Power UP
RES3
CC
Chip Supply Voltage
< 14.1V) a capacitor (C19 in Figure 3) will be charged up via I
= - 21.3 µA out of the RES pin (12) monitors during a start up (also in Run
RES3
2
= - 21.3 µA. Now the controller powers up the system including Soft
nd
Generation FL-Controller for FL-Ballasts
RES
= 5.0 V. The gate drives of the PFC and inverter stage do
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Time
Time
Time
Time
RES1
RES1
RES1
Figure 9 Restart from open Low Side Filament
= 1.6 V, the controller prevents a power up and
= 1.3V and to I
= 1.3V.When a filament is present (Figure 9
RES4
Functional Description
= - 17.7µA, the controller
RES3
= - 21.3 µA.
ICB2FL02G
V1.2