ICB2FL03G Infineon Technologies, ICB2FL03G Datasheet - Page 31

• 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

2.7
Line interruptions (bus voltage drops) are detected by the PFCVS. If the rated PFC bus voltage drops below
V
lighting standards, the controller distinguishes between two different states of PFC bus undervoltage: short- and
a long-term PFC bus undervoltage. A timer increases the time as long as bus undervoltage is present. Short-term
bus undervoltage is detected if the timer value stays below t < 800 ms typical (500 ms min.) after the bus voltage
reaches the nominal level again. This causes a restart without preheating (emergency standard of VDE0108) –
see
term bus undervoltage
2.7.1
Short-term PFC bus undervoltage
800 ms (timer stays below t < 800 ms, see
switched off and the controller continuously monitors the status of the bus voltage in a latched power-down mode
(I
timer is below t < 800 ms, the controller restarts from power up without preheating. The timer resets to 0 when
entering run mode.
Figure 25
Preliminary Data Sheet
CC
BUSRated
Figure
< 170 µA). If the signal at the LVS pin exceeds 18 µA and the rated bus voltage is above 12.5 % while the
< 75 % during run mode, the controller detects PFC bus undervoltage. In order to meet the emergency
25. If the timer exceeds t > 800 ms, the controller forces a complete restart of the system due to long-
Short-term PFC Bus Undervoltage
Emergency Lighting
BUS Voltage Drop below 75% (rated Bus Voltage) for t < 800 ms during RUN Mode
(Figure
V
Timer
I
Preheating
BUSRated
t = 800ms
V
100%
V
Lamp
I
16V
75%
CC
CC
26).
RUN Mode
(Figure
< 6 mA +
Bus Voltage Drop for t < 800 ms
I
QGate
Restart without Preheating
Figure
25) is detected if the duration of the undervoltage does not exceed
Power Down
Interrupt for
t < 800 ms
< 160 µA
Mode
25). In that case, the PFC and inverter drivers are immediately
31
Pre Run
Controller for Fluorescent Lamp Ballasts
< 6 mA + I
QGate
Run Mode
Functional Description
V1.1, 2012-04-10
ICB2FL03G