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HV853(2007) 데이터 시트보기 (PDF) - Supertex Inc
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HV853
(Rev.:2007)
High Voltage, Low Noise, Inductorless EL Lamp Driver
Supertex Inc
HV853 Datasheet PDF : 7 Pages
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2
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4
5
6
7
Typical Performance
(The following was the observed performance when driving a 1.0in
2
green lamp)
Load
R
EL
V
DD
3.2
3.5
3.3nF + 1.0kΩ
1.5MΩ
3.8
4.2
5.0
I
DD
13.1
12.9
12.7
12.5
12.3
Figure 1: Typical Application
+
V
DD
-
C
DD
V
DD
= ON
GND = OFF
1
R
EL
2
V
DD
R
EL
3
EN
4
CLK
IN
V
A
8
7
V
B
6
GND
5
CLK
EN
HV853
V
A
-V
B
158
158
158
158
158
EL
Lamp
Figure 2: Push Button Turn on with Delay Turn off
+
V
DD
-
R
EL
Push Button
Turn On
C
DD
1
V
DD
2
R
EL
3
EN
4
CLK
IN
8
V
A
7
V
B
6
GND
CLK
EN
5
CR
HV853
EL
Lamp
RC time constant
will set Turn OFF
Delay time
Figure 3: Independent Programmable Output Frequency (f
EL
)
Note: f
EL
= f
CLK
/128
+
V
DD
-
C
DD
V
DD
= ON
GND = OFF
V
DD
GND
f
CLK
1
V
DD
2
R
EL
3
EN
4
CLK
IN
V
A
8
V
B
7
6
GND
5
CLK
EN
HV853
EL
Lamp
V
DD
4
HV853
f
EL
294
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