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HV831 Просмотр технического описания (PDF) - Supertex Inc
Номер в каталоге
Компоненты Описание
производитель
HV831
High Voltage Dual EL Lamp Driver
Supertex Inc
HV831 Datasheet PDF : 8 Pages
1
2
3
4
5
6
7
8
Functional Block Diagram
V
DD
C
1
C
2
R
SW-OSC
GND
Control Logic
& Switch-Osc
D isab le
V
SENSE
Vcs
V
REF
Output
Drivers
Vcs
Logic Control &
Divide by 128
HV831
Lx
C
S
EL
1
EL
2
COM
Figure 1: Test Circuit
V
DD
= ON
V
DD
= ON
0 = OFF
Enable 1
0 = OFF
Enable 2
1
C
1
EL
1
10
+
V
DD
-
0.1
µ
F
2
470 k
Ω
V
DD
EL
2
9
3
R
SW-OSC
Com
8
4
C
2
C
S
7
5
GND
L
X
6
HV831MG
+
V
IN
4.7
µ
F
-
EL Lamp 1 (1.3 in
2
)
3
1N914
1
~
560
µ
H
2
EL Lamp 2 (0.93 in
2
)
3
3.3 nF, 100V
1 or any (equivalent or better)
>
90V, fast recovery diode
2 Murata LQH32CN561K21
3 The bigger sized lamp should be tied to EL1 and the smaller
sized lamp to EL2 terminals (pins 10 and 9 respectively)
Device
HV831MG
Lamp
EL1
Both EL1 and EL2 ON
V
DD
3.0V
I
DD
17.3mA
26.5mA
V
CS
74.8V
67.8V
f
EL
244Hz
Brightness
5.9ft-lm
5.5ft-lm
4
A081005
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