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參數(shù)資料
| 型號： | ICB1FL02G |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | Smart Ballast Control IC for Fluorescent Lamp Ballasts |
| 中文描述： | 智能鎮(zhèn)流器控制芯片用于熒光燈鎮(zhèn)流器 |
| 文件頁數(shù)： | 14/37頁 |
| 文件大?。?/td> | 1143K |
| 代理商： | ICB1FL02G |
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ICB1FL02G
Functional Description
Datasheet Version 1.2
14
February 2006
3.4
Detection of End-of-Life and Rectifier Effect
After ignition the lamp voltage breaks down to its run voltage level (typically 50Vpeak to 300Vpeak). Reaching the
run frequency there follows a time period of 250ms called Pre-Run Mode, in which some of the monitoring features
(EOL1, EOL2, Cap.Load1) are still disabled. In the subsequent Run Mode the End-of-life (EOL) monitoring is
enabled. The event EOL1 is detected by measuring the positive and negative peak level of the lamp voltage by a
current fed into the LVS pin (R17, R18,R19 in Fig. 11). If the sensed current exceeds 215μA for longer than 610μs
the status end-of-life (EOL1) or the exceeding of the maximum output power is detected. In Fig. 12 the different
levels of the sensed lamp voltage are illustrated.
Figure 11
Circuit diagram of the lamp inverter section.
Figure 12
Sensed lamp voltage levels.
R
R
R
V
PFCZCD
PFCGD
PFCVS
PFCCS
HSGD
HSVCC
HSGND
LSGD
LSCS
L
L
R
G
I
VBUS
Vcc
D9
C2
R5 R12 R13
R10
R11
C4
C7
Q2
Q3
R14
R16
R15
R17
R18
R19
R20
C5
C6
C8
C9
C10
L2
D6
D7
D8
R30
D10
t
+ Shut down level
- Shut down level
- Ignition level
+ Ignition level
+ EOL Threshold
- EOL Threshold
IV
L+PEAK
I/IV
L-PEAK
I
V
LAMP-RUN
V
LAMP-IGN
0
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| ICB1FL02G IFX | 制造商:Infineon Technologies AG 功能描述: |
| ICB1FL02G_08 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Smart Ballast Control IC for Fluorescent Lamp Ballasts |
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