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KA7541D 数据表(PDF) 2 Page - Fairchild Semiconductor

部件名 KA7541D
功能描述  Simple Ballast Controller
Download  14 Pages
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

KA7541D 数据表(HTML) 2 Page - Fairchild Semiconductor

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KA7541
2
Internal Block Diagram
Absolute Maximum Ratings
Absolute Maximum Ratings (-25
°°°°C≤≤≤≤Ta≤≤≤≤125°°°°C)
Parameter
Symbol
Value
Unit
Supply voltage
VCC
30
V
Peak drive output current
IOH, IOL
±300
mA
Drive output clamping diodes
VO>VCC, or VO<
−0.3
Iclamp
±10
mA
Soft start, and no lamp detection input voltage
VIN
−0.3 to 6
V
Operating temperature range
Topr
-25 to 125
°C
Storage temperature range
Tstg
−65 to 150
°C
Power dissipation
8-DIP
Pd
0.8
W
8-SOP
0.5
Thermal resistance (Junction-to-air)
8-DIP
θja
100
°C/W
8-SOP
165
Parameter
Symbol
Value
Unit
Temperature stability for reference voltage (Vref)
∆Vref(Typ)
15
mV
Temperature stability for operating frequency (fos)
∆fos(Typ)
5
kHz
CS
0.22
µF
1
2
3
4
5
6
7
8
Ct
RS
Ldet
180pF
+
Vref
IH
Ict
2V Ref
Internal
bias
+
+
+
IC
1.8V
9.5V
F.D
UVLO
UVLO
Frequency
divider
+
Shut down signal
40k
5pF
2V
+
8Ict
latch
Q
IH = Ik
× (Vref − VSS) / Vref
IS = Vref / RS
VCC
OUT 1
OUT 2
GND
3pF
Current
mirror
VZ
Ik = IS / 6
VCC
VCC
Vref
Oscilator
IS
22k
2.5
µA
30k
2k
+
-
-
+
3V
1V
Oscilator
S
R


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