HV832DB1 Ver la hoja de datos (PDF) - Supertex Inc
Número de pieza
componentes Descripción
Fabricante
HV832DB1 Datasheet PDF : 2 Pages
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Ce**
10nF
+
VDD
-
+
VIN
-
HV832DB1 Schematic
EN-SW
10KΩ
Re**
0.1µF
1 EL1
EL2 8
2 VDD
Com 7
3 Control
CS 6
4 GND
LX 5
HV832MG
1N914*
390µH
4.7µF
HV832DB1
EL Lamp 1
EL Lamp 2
3.3nF
100V
Lx = 390µH MuRata (LQH32CN391K21)
* Any (equivalent or better)> 90V, fast reverse recovery diode
** Re and Ce are used to prevent change in lamp selection due to use of
mechanical switch which can have contact bounce.
Typical Performance
The specific external components used in the above circuit are LX=390µH Murata (LQH32CN391K21), Cs= 3.3nF 100V NPO.
The following was observed when driving a 0.93in2 Green lamp.
VDD(V)
3.3
3.0
VIN(V)
3.3
3.0
3.2
4.2
Lamp
Selection
Lamp 1 or 2
Both lamps
Lamp 1 or 2
Both lamps
Lamp 1 or 2
Both lamps
Lamp 1 or 2
Both lamps
IIN(mA)
20.9
31.1
21.9
32.0
21.3
31.4
19.3
28.3
VCS(V)
80.7
73.0
78.4
70.1
79.8
72.3
85.2
81.0
fEL(Hz)
417
Brightness
ft-lm
cd/ m2
11.75
40.2
10.64
36.4
11.34
38.8
9.82
33.6
11.64
39.8
10.29
35.2
12.43
42.5
11.58
39.6
The following was observed when driving EL1=1.3in2 and EL2=0.93in2 Green lamps.
VDD(V) VIN(V)
3.3
3.3
Lamp
Selection
EL1
EL2
Both lamps
IIN(mA)
23.8
20.9
34.2
VCS(V)
81.3
80.7
71.7
fEL(Hz)
417
Brightness
ft-lm
cd/ m2
10.79
36.9
11.75
40.2
9.59
32.8
The above circuit may need to be optimized further based on specification of the lamp used.
©2001 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
2
12/13/01rev.4
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 • FAX: (408) 222-4895
www.supertex.com
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