ICB2FL03G Infineon Technologies, ICB2FL03G Datasheet - Page 27

• 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

Figure 18
2.5.1
The event of EOL1 is detected by measuring the positive and negative peak levels of the lamp voltage via an AC
current fed into the pin LVS
R44 and the low pass filter C40 and R45 – see
than 620 µs, the status of end-of-life (EOL1) is detected (lamp overvoltage/overload; see
current). The EOL1 fault results in a latched power-down mode (after trying a single restart). The controller
continuously monitors the status until the EOL1 status changes – e.g. a new lamp is inserted.
Figure 19
Preliminary Data Sheet
Positive DC Level
for EOL2 Detection
Negative DC Level
for EOL2 Detection
Pos. Ignition Level
Neg. Ignition Level
Pos. AC Level
for EOL1 Detection
Neg. AC Level
for EOL 1 Detection
Lamp voltage
End of Life and Rectifier Effect
Detection of End of Life 1 (EOL1) – Lamp Overvoltage
End of Life (EOL1) Detection, Lamp Voltage versus AC LVS Current
0
Pos. AC Level
for EOL1 Detection
Neg. AC Level
for EOL1 Detection
LVSAC Current
(Figure
Ignition
- 105µA
Lamp Voltage
1
105µA
19). This AC current is fed into the LVS pins via the network R41, R42, R43,
Peak
Peak
0
0
Normal Operation
Normal Operation
Figure
2
EOL1 Detection
2
2
27
3. If the sensed AC current exceeds 210 µA
Controller for Fluorescent Lamp Ballasts
Lamp Overvoltage
Lamp Overvoltage
EOL1
3
3
t = 620 µs
3
EOL1
Rectifier Effect
4
Functional Description
EOL2
t
t
Figure 19
V1.1, 2012-04-10
ICB2FL03G
t
PP
for longer
LVSAC
t