HV845DB1 Supertex, HV845DB1 Datasheet - Page 2

• Manufacturer Part Number: HV845DB1
• Manufacturer: Supertex

Specifications of HV845DB1

• Lead Free Status / Rohs Status: Not Compliant

Figure1: HV845DB1 Circuit Schematic
Bill of Materials
The above circuit may need to be optimized further based on specification of the lamp used.
100110
Typical Performance
The specific external components used in the above circuit are: R
The following performance was observed when driving EL
©2010
Supertex inc.
an adequate “product liability indemnification insurance agreement.”
to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and
specifications are subject to change without notice. For the latest product specifications refer to the
V
Diode
DD
Part
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
R
C
Supertex inc.
C
U1
C
L
V
SW
DD
X
IN
(V)
S
-
+
DD
Description
330μH Inductor
3.3nF, 100V, NPO chip capacitor
1%, 845kΩ chip resistor
4.7μF, 10V ceramic chip capacitor
0.1μF, 16V ceramic chip capacitor
100V fast recovery diode
EL driver IC
does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives
V
IN
3.3
3.3
3.3
3.7
3.7
3.7
4.2
4.2
4.2
All rights reserved. Unauthorized use or reproduction is prohibited.
(V)
V
IN
-
+
EL
EL
EL
C
0.1µF
1
1
1
DD
and EL
and EL
and EL
V
0 = OFF
EL
EL
EL
EL
EL
EL
Lamp
IH
= ON
1
2
1
2
1
2
ON
ON
ON
ON
ON
ON
V
0 = OFF
IH
2
2
2
= ON
ON
ON
ON
C
4.7µF
IN
1
= 1.3in
R
SW-Osc
I
IN
Supertex inc.
12.35
11.13
8.96
6.96
7.65
5.98
6.19
4.79
8.51
(mA)
SW
2
and EL
L
= 845kΩ, L
12-Lead QFN
X
12
1
3
2
Package
SOT-23
RSW-Osc
VDD
C1
C2
2
0805
0805
0805
0805
2
= 0.93in
---
5
LX
does not assume responsibility for use of devices described, and limits its liability
V
HV845
X
CS
= 330μH Coilcraft (LPS3010-334ML), C
4
GND
(V
88
88
88
88
88
88
88
88
88
2
green lamps.
CS
PEAK
6
Supertex inc.
COM2
COM1
)
EL2
EL1
Manufacturer
Supertex Inc
Diodes Inc
10
8
9
7
f
Novacap
Coilcraft
EL
195
195
195
195
195
195
195
195
195
Any
Any
Any
(Hz)
1N4148
(website: http//www.supertex.com)
1235 Bordeaux Drive, Sunnyvale, CA 94089
Supertex inc.
EL Lamp 1
Lamp Brightness (cd/m
17.04
16.17
17.45
16.64
17.71
17.27
EL
EL Lamp 2
-
-
-
S
= 3.3nF 100V NPO.
1
0805N332K101NT
LPS3010-334ML
Part Number
HV845K7-G
1N4148
www.supertex.com
---
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Tel: [phone]
16.36
14.72
16.78
15.79
17.20
16.20
EL
C
3.3nF
-
-
-
S
2
2
)