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VK05 반도체 회로 부품 판매점

ELECTRONIC DRIVER FOR CFL APPLICATION



STMicroelectronics 로고
STMicroelectronics
VK05 데이터시트, 핀배열, 회로
® 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


VK05 데이터시트, 핀배열, 회로
VK05CFL
ABSOLUTE MAXIMUM RATING
Symbol
VCS
Isec
Vsec
ICM
IOSC
VOSC
Tj
Tstg
Parameter
Collector-Source Voltage
Input Current (secondary)
Input Voltage (secondary)
Collector Peak Current
Osc Pin Current
Osc Pin Voltage
Max Operating Junction Temperature
Storage Temperature Range
Min Typ Max
520
-100 140
Internally limited
-1.8 1.8
100
Internally limited
-40 150
-55 150
THERMAL DATA
Symbol
R thj-lead
R thj-amb
Parameter
Thermal Resistance Junction - lead
Thermal Resistance Junction - ambient
Max
Max
Value
15
52 (*)
(*) When mounted on a standard single-sided FR-4 board with 100mm2 of Cu (at least 35µm thick).
CONNECTION DIAGRAM
Unit
V
mA
V
A
mA
V
°C
°C
Unit
°C/W
°C/W
Collector
Collector
Collector
Collector
5
8
4 sec
osc
diac
1 Source
SO-8
PIN FUNCTIONS
Pin Name
Collector
Source
diac
sec
osc
Pin Function
Collector of the NPN high voltage transistor in the cascode configuration.
Low voltage Power MOSFET source in the cascode configuration and GROUND reference.
Input of the diac block to start the system up at the beginning.
Connection with secondary winding of the voltage transformer, in order to trigger and to supply the
device.
Output via to charge external capacitor necessary to set the steady state working frequency.
2/14




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VK05 driver

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