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KA7540D 데이터시트(PDF) 5 Page - Samsung semiconductor

부품명 KA7540D
상세설명  Simple Dimming Ballast Control IC
Download  14 Pages
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제조업체  SAMSUNG [Samsung semiconductor]
홈페이지  http://www.samsung.com/Products/Semiconductor
Logo SAMSUNG - Samsung semiconductor

KA7540D 데이터시트(HTML) 5 Page - Samsung semiconductor

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KA7540
KA7540
KA7540
KA7540
5
5
5
5
Electrical Characteristics
Electrical Characteristics
Electrical Characteristics
Electrical Characteristics
Unless otherwise specified, for typical values Vcc=14V, Ta=25
°C, For Min/Max values Ta is the operating ambient
temperature range with -25
°C ≤ Ta ≤ 125°C and 14V≤ Vcc≤ 30V
Notes :
Notes :
Notes :
Notes :
1. This parameter is not tested in production but tested in wafer.
2. This parameter, although guaranteed, is not 100% tested in production.
Parameter
Parameter
Parameter
Parameter
Symbol
Symbol
Symbol
Symbol
Conditions
Conditions
Conditions
Conditions
Min.
Min.
Min.
Min.
Typ.
Typ.
Typ.
Typ.
Max.
Max.
Max.
Max.
Unit
Unit
Unit
Unit
UNDER VOLTAGE LOCK OUT SECTION
UNDER VOLTAGE LOCK OUT SECTION
UNDER VOLTAGE LOCK OUT SECTION
UNDER VOLTAGE LOCK OUT SECTION
Start threshold voltage
VTH(st)
VCC increasing
11.5
12.5
13.5
V
UVLO hysteresis
HY(st)
-
1.3
1.8
2.3
V
SUPPLY CURRENT SECTION
SUPPLY CURRENT SECTION
SUPPLY CURRENT SECTION
SUPPLY CURRENT SECTION
Start up supply current
IST
VCC<VTH(st),
Vcc=14V
-0.2
0.3
mA
Operating supply current
ICC
Output not switching
-
6
10
mA
Dynamic operating supply current
IDCC
50kHz, CI=1nF
-
7
14
mA
REFERENCE SECTION
REFERENCE SECTION
REFERENCE SECTION
REFERENCE SECTION
Reference voltage(Note1)
Vref
Iref=0mA, Vcc=14V
1.95
2
2.05
V
Line regulation(Note1)
∆Vref 1
14V
≤VCC≤25V
-
0.1
10
mV
Temperature stability of Vref(Note1)
∆Vref 2
-25
≤Ta≤125°C,
Vcc=14V
-15
-
mV
OSCILLATOR SECTION
OSCILLATOR SECTION
OSCILLATOR SECTION
OSCILLATOR SECTION
Operating frequency
fos
VSS=3V, CT=470pF
44
50
56
kHz
Operating dead time
tod
VSS=3V, Vcc=14V
2.4
2.9
3.4
µs
Soft start frequency
fss
VSS=0V, CT=470pF
56
65
74
kHz
Soft start time current
ISS
VSS=0V
172533
µA
Soft start dead time
tsd
VSS=0V, Vcc=14V
1.8
2.3
2.8
µs
Dimming frequency
fd
Vss=5V, Vdim=1V
58
72
86
kHz
OUTPUT SECTION
OUTPUT SECTION
OUTPUT SECTION
OUTPUT SECTION
Rising time (Note2)
tr
CI=1nF
-
120
200
ns
Falling time (Note2)
tf
CI=1nF
-
50
100
ns
Maximum output voltage
Vomax(o)
VCC=20V
12
15
18
V
Output voltage with UVLO activated
Vomin(o)
VCC=5V, IO=100
µA-
-
1
V
NO LAMP PROTECTION SECTION
NO LAMP PROTECTION SECTION
NO LAMP PROTECTION SECTION
NO LAMP PROTECTION SECTION
No lamp detect voltage
Vnd
-
1.9
2
2.1
V


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