ICB2FL01G Infineon Technologies, ICB2FL01G Datasheet - Page 14

• Manufacturer Part Number: ICB2FL01G
• Description: IC SMART BALLAST CONTROL DSO-19
• Manufacturer: Infineon Technologies
• Type: PFC/Ballast Controllerr

Specifications of ICB2FL01G

• Frequency: 20 ~ 120 kHz
• Current - Supply: 4.2mA
• Voltage - Supply: 10.6 V ~ 17.5 V
• 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: -
• Lead Free Status / Rohs Status: Details
• Other names: SP000363741

In case of V
5), the IC checks whether the lamps are assembled by detecting a current across the filaments.
The low side filaments are checked from a source current of typical I
RES
(Figure 5 I
filament sense resistor (R 36 in Figure 3), connected to GND (via low side filament). An open low side
filament is detected (see chapter 2.3.2), when the voltage at the RES PIN exceeds the V
threshold (Figure 5 V
The high side filaments are checked by a current of I
R43 (Figure 3) into the LVS1 PIN 13 (for a single lamp operation) and LVS2 PIN 14 for a multi lamp
operation. Note: in case of a single lamp operation, the unused LVS PIN has to be disabled via
connection to GND. An open high side filament is detected (see 2.3.3) when there is no sink current
into the LVS PIN. This causes a higher source current out of the RES PIN (typical 42.6 µA / 35.4 µA)
in order to exceed V
adequate current from the RES or the LVS PIN present (e.g. in case of removal a defect lamp).
When V
the IC waits for 80µs and senses the bus voltage. When the rated bus voltage is in the corridor of
12.5% < V
sensing) when not, the IC initiates an UVLO when the chip supply voltage is below V
soon as the condition for a power up is fulfilled, the IC starts the inverter gate operation with an
internal fixed Start Up frequency of 135 kHz. The PFC gate drive starts with a delay of app. 300µs.
Now, the bus voltage will be checked for a rated level above 95 % for a duration of 80 ms (phase 3
Figure 5). When leaving phase 3, the IC enters the Soft Start phase and shifts the frequency from the
internal fixed Start Up frequency of 135 kHz down to the set Preheating frequency e.g. f
kHz.
Datasheet
CC
RES
BUSrated
exceeds the 14.1 V threshold - by the end of the start up hysteresis in phase 2 Figure 5 -
CC
). This current produces a voltage drop of V
exceeds the 10.6 V level and stays below 14.1 V (Start up Hysteresis – phase 2 Figure
< 105% the IC powers up the system and enters phase 3 (Figure 5 V
RES
RES
> 1.6 V. In case of defect filaments, the IC keeps monitoring until there is an
).
2
nd
Generation FL-Controller for FL-Ballasts
Page 14 of 56
LVS
> 12 µA typically via resistors R41, R42 and
RES
< 1.6 V (filament is ok) at the low side
RES3
= - 21.3 µA out of PIN 12
Functional Description
CC
BUSrated
< 10.6 V. As
RFPH
RES
ICB2FL01G
> 1.6V
= 100
> 95 %
V1.2