ICB2FL01GXT Infineon Technologies, ICB2FL01GXT Datasheet - Page 28

• Manufacturer Part Number: ICB2FL01GXT
• Manufacturer: Infineon Technologies

Specifications of ICB2FL01GXT

• Driver Type: Fluorescent Lamp
• Number Of Segments: 1
• Operating Temperature (min): -25C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Commercial
• Package Type: DSO
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

2.6.1 Capacitive Load 1 (Idling Detection – Current Mode Preheating)
A capacitive load 1 operation (idling) is detected when the voltage at the LSCS pin is below + 100 mV
during the second 50% ON – time of the low side MOSFET (see Capacitive Load 1 (Idling) in Figure
25). If this status is present for longer than 2500 ms, the controller results a latched power down mode
after trying a single restart. The controller is keep monitoring continuously the status until an adequate
load is present (e.g. lamp removal), than the IC changes into a normal operation.
Figure 25: Capacitive Mode 1 Operation without load during Run Mode
2.6.2 Capacitive Load 2 (Over Current / Operation below Resonance)
A capacitive load 2 operation is detected if the voltage at the LSCS pin drops below a second
threshold of V
threshold of V
for longer than 620 µs, the IC results a latched power down mode after trying a single restart. The
controller keeps monitoring continuously the status until an adequate load is present e.g. a new lamp
is inserted, then the IC changes into a normal operation.
Figure 26: Capacitive Mode 2 – Operation with Over Current
Datasheet
- 100 mV
V
V
+ 2.0 V
V
V
GateHS
I
GateLS
DSLS
DSLS
LSCS
t
CAPLOAD 1
LSCS
LSCS
= – 100 mV directly before the high side MOSFET is turned on or exceeds a third
= 2.0 V during ON switching of the high side MOSFET. If this over current is present
t
CAPLOAD 2
Normal Operation
2
nd
Generation FL-Controller for FL-Ballasts
Page 28 of 56
- 100 mV
V
V
+ 2.0 V
V
V
GateHS
I
GateLS
DSLS
DSLS
LSCS
Capacitive Load 2 (Over Current)
t
CAPLOAD 2
Functional Description
ICB2FL01G
V1.2