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ICB2FL02G Datasheet, PDF (28/55 Pages) Infineon Technologies AG – Smart Ballast Control IC for Fluorescent Lamp Ballasts
2nd Generation FL-Controller for FL-Ballasts
Functional Description
2.6.1 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 VLSCS = – 50 mV directly before the high side MOSFET is turned on or exceeds a third
threshold of VLSCS = 2.0 V during ON switching of the high side MOSFET. If this over current is present
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 24 Capacitive Mode 2 – Operation with Over Current
Preliminary Datasheet
Page 28 of 55
ICB2FL02G
V1.2