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VK05CFL の電気的特性と機能

VK05CFLのメーカーはSTMicroelectronicsです、この部品の機能は「ELECTRONIC DRIVER FOR CFL APPLICATION」です。


製品の詳細 ( Datasheet PDF )

部品番号 VK05CFL
部品説明 ELECTRONIC DRIVER FOR CFL APPLICATION
メーカ STMicroelectronics
ロゴ STMicroelectronics ロゴ 




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VK05CFL Datasheet, VK05CFL PDF,ピン配置, 機能
® VK05CFL
ELECTRONIC DRIVER FOR CFL APPLICATION
TYPE
VK05CFL
BV
520 V
ICrms
0.25A
IPeak
1.5A
s EMITTER SWITCH POWER OUTPUT STAGE
s INTEGRATED ANTIPARALLEL COLLECTOR
SOURCE DIODE
s INTEGRATED DIAC FUNCTION
s NOMINAL WORKING FREQUENCY
SETTABLE BY EXTERNAL CAPACITOR
s IGNITION FREQUENCY SET BY LOAD
DESCRIPTION
The VK05CFL is a monolithic device housed in a
standard SO-8 package, made by using
STMicroelectronics proprietary VIPower M3
Technology. This device is intended both for the
low side and the high side driver in half bridge CFL
applications. This means that it is possible to
realize a complete H-bridge by using two
VK05CFL devices: one connected in HSD
configuration and the other connected in LSD
configuration. In the VK05CFL used in HSD
BLOCK DIAGRAM
SO-8
configuration, the diac pin must be connected to
source pin. Both diac functionality and discharge
circuit for external diac capacitor are integrated.
By an external capacitor it is possible to choose
the nominal working frequency without influence
on the ignition one.
Collector
diac
Diac
sec
-osc
+
R 2Vref
+
-
5Vref
September 2002
Source
1/14

1 Page





VK05CFL pdf, ピン配列
VK05CFL
ELECTRICAL CHARACTERISTICS (Tcase=25°C unless otherwise specified)
FORWARD
Symbol
Parameter
Test Conditions
VCS(sat) Collector-Source Saturation Voltage Vsec=10V; IC=300mA
Min Typ Max Unit
1.4 2.8
V
REVERSE
Symbol
Parameter
Test Conditions
VCSr Collector-Source Reverse Voltage IC= -300mA
Min Typ Max Unit
-1 -1.5 V
OSC
Symbol
IOSC
VOSC(th)
Parameter
Osc Output Current
Osc Turn-off Voltage
Test Conditions
Vsec=10V; VOSC=0V
Vsec=10V
Min Typ Max Unit
300 µA
1.6 2
V
DIAC
Symbol
Vdiac(thH)
Vdiac(thL)
Parameter
Diac On Threshold
Diac Off Threshold
Test Conditions
Min Typ Max Unit
28 31 35 V
18 V
SEC
Symbol
Vsec(clH)
Vsec(clL)
Vsec(on)
Isec(on)
Parameter
Sec Clamp High
Sec Clamp Low
Sec Turn-on Voltage
Sec On Current
Test Conditions
Isec=20mA; VOSC=0V
Isec= -10mA
IC=10mA; VOSC=0V
Vsec=10V; VOSC=0V;
IC=300mA
Min Typ Max Unit
22 V
25 V
3.5 4.5 5.5
V
4 mA
3/14


3Pages


VK05CFL 電子部品, 半導体
VK05CFL
Figure 3: Start-up phase
diac
midpoint
From figure 4 it can be observed that the value of secondary voltage decreases when the lamp current
increases. This happens because increasing the value of the current flowing through the tube, increase
the drop on it, consequently decreasing the voltage on the ballast inductor Lp and thereby decreasing also
the secondary voltage.
By inserting the filters (R4-C10; R5-C11) between the two secondary windings and the devices, it is
possible to guarantee a higher voltage on the input pin of the devices for longer time compared to the
secondary signal. In this way it is possible to extend the use of the VK05CFL to all the power range eg.5W
– 23W.
Figure 4: Steady state waveforms
VL2s
Vsec
Vmidpoint
Ilamp
6/14

6 Page



ページ 合計 : 14 ページ
 
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共有リンク

Link :


部品番号部品説明メーカ
VK05CFL

ELECTRONIC DRIVER FOR CFL APPLICATION

STMicroelectronics
STMicroelectronics


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