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STK73905 Datasheet(PDF) 2 Page - Inchange Semiconductor Company Limited

Part No. STK73905
Description  Self-excitation Type Feedback Control Switching Regulator
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Maker  ISC [Inchange Semiconductor Company Limited]
Homepage  http://www.iscsemi.cn
Logo ISC - Inchange Semiconductor Company Limited

STK73905 Datasheet(HTML) 2 Page - Inchange Semiconductor Company Limited

  STK73905 Datasheet HTML 1Page - Inchange Semiconductor Company Limited STK73905 Datasheet HTML 2Page - Inchange Semiconductor Company Limited STK73905 Datasheet HTML 3Page - Inchange Semiconductor Company Limited  
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Thick Film Hybrid IC
INCHANGE
Specifications
Maximum Ratings at Ta=25℃, Tc=25℃ unless otherwise specified
Parameter
Symbol
Conditions
Ratings
UNIT
Operating substrate temperature
TC max
Recommended value is 105℃
115
AC input voltage
VAC
Specified test circuit
140
Vrms
Operating temperature
Topr
-10 to+85
Storage temperature
Tstg
-30 to+115
Maximum output power
Wo max
Specified test circuit VO=135V
180
W
(TR1)
Drain current
ID
10
A
Pulse drain current
ID(Pulse)
35
A
Drain reverse current
IDR
10
A
Gate-source voltage
VGSS
±30
V
Allowable power dissipation
PD
100
W
Chip junction temperature
Tj max
150
(ZD1)
Allowable power dissipation
PZD1
500
mW
Chip junction temperature
Tj(ZD1)max
125
Recommended operating ranges at Ta=25℃
Parameter
Symbol
Conditions
Ratings
UNIT
Pin 4 input voltage
V4
±8 to±24
V
Oscillator frequency
fOSC
20 to 100
kHz
Operating characteristics at Ta=25℃,Tc=25℃
( unless otherwise specified,specified test circuits)
Parameter
Symbol
Conditions
min
Typ
max
UNIT
(TR1)
Drain-source breakdown voltage
V(BR)DSS
ID=1mA,VGS=0V
500
V
Gate-source cutoff voltage
VGS(off)
ID=1mA,VDS=10V
2.5
3.5
5.0
V
ON resistance
RDS(on)
ID=5A,VGS=10V
0.6
0.9
Ω
Input capacitance
Ciss
VDS=25V,VGS=0V,f=1MHz
1400
pF
(ZD1)
Zener voltage
VZ
IZ=5mA
23.7
26.3
V


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