ICB2FL02G Infineon Technologies, ICB2FL02G Datasheet - Page 12

• Manufacturer Part Number: ICB2FL02G
• Description: IC SMART BALLAST CONTROL DSO-19
• Manufacturer: Infineon Technologies
• Type: Ballast Controllerr

Specifications of ICB2FL02G

• Frequency: 20 ~ 120 kHz
• Current - Supply: 4.2mA
• 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: -
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Details
• Other names: ICB2FL02GINTR

2.2
This chapter describes the basic operation flow (8 phases) from the UVLO (Under Voltage Lock Out)
into Run Mode without any error detection. For detailed infromation see the following chapters 2.2.1
and 2.2.2. Figure 4 shows the 8 different phases during a typical start form UVLO (phase 1 Figure 4)
to Run Mode (phase 8 Figure 4) into normal Operation (no failure detected).
In case the AC line input is switched ON, the V
IC activities during UVLO). If V
of detection activity, the high and low side filament detection during the Start Up Hysteresis (phase 2
Figure 4).
Figure 4 Typical Start Up Procedure in Run Mode (in normal Operation)
Followed by the end of the Start Up Hysteresis (phase 2 Figure 4) V
active, a second level of detection activity senses for 130 µs (propagation delay of the IC) whether the
rated bus voltage is below 12.5 % or above 105 %. If the previous bus voltage conditions are fulfilled
and the filaments are detected, the IC starts the operation with an internally fixed startup frequency of
typically 135 kHz (all gates are active). In case the bus voltage reaches a level of 95% of the rated bus
voltage within latest 80ms (phase 3 Figure 4), the IC enters the Soft Start. During the Soft Start (phase
4 Figure 4), the Start Up frequency shifts from 135 kHz down to the set preheating frequency (chapter
2.2.2). In the Soft Start phase, the lamp voltage rises and the chip supply voltage reaches its working
level from 10.6 V < V
5 Figure 4) for preheating the filaments (adjustable time) in order to extend the life cycle of the FL
filaments. By finishing the preheating, the controller starts the Ignition (phase 6 Figure 4). During the
Ignition phase, the frequency decreases from the set preheating frequency down to the set operation
frequency (adjustable see chapter 2.2.2). If the Ignition is successful, the IC enters the Pre – Run
mode (phase 7 Figure 4).
Preliminary Datasheet
Voltage V
Lamp Voltage
Chip Supply
Rated BUS
Voltage V
Frequency /
V
V
V
CC
CC
CC
V
135 kHz
100 kHz
= 17.5 V
= 14.1 V
= 10.6 V
CC
Normal Start Up
100 %
50 kHz
95 %
30 %
42 kHz
0 kHz
= 0 V
BUS
CC
UVLO
60ms
1
CC
Monitoring
< 17.5 V. After finish the Soft Start, the IC enters the Preheating mode (phase
35ms
2
CC
2
Start Up
exceeds the first threshold of V
80ms
nd
3
Generation FL-Controller for FL-Ballasts
11ms
Soft Start Preheating
4
Chip Supply Voltage
Rated BUS Voltage
Page 12 of 55
Lamp Voltage
0 - 2500ms
CC
Frequency
voltage rises to the UVLO threshold V
5
40 - 237ms
Ignition
6
CC
= 10.6 V, the IC starts the first level
CC
> 14.1 V and before phase 3 is
Pre-Run
625ms
Functional Description
7
Run Mode
into normal Operation
8
CC
= 10.6 V (no
Mode /
Mode /
Mode /
ICB2FL02G
Time
Time
Time
V1.2