HV857LDB1 Supertex, HV857LDB1 Datasheet - Page 2

• Manufacturer Part Number: HV857LDB1
• Manufacturer: Supertex

Specifications of HV857LDB1

• Lead Free Status / RoHS Status: Not Compliant

HV857LDB1 Schematic
The above circuit may be optimized further based on specifi cation of the lamp used.
Typical Performance
HV857LDB1 Bill of Materials
110707
Component
Diode
V
R
C
R
C
U1
C
L
DD
SW
DD
EL
X
IN
1.8
2.0
3.0
4.0
5.0
S
(V)
ON = V
OFF = 0V
= V
V
IN
IN
V
DD
DD
+
-
+
-
4.7µF, 10V ceramic chip capacitor
0.1µF, 16V ceramic chip capacitor
3.3nF, 100V, NPO chip capacitor
250V fast recovery diode
27.06
26.95
27.01
21.94
17.55
(mA)
5%, 560kΩ resistor
5%, 2MΩ resistor
I
IN
220µH Inductor
(when driving a 3in
Description
C
0.1µF
EL driver IC
Enable Signal
C
4.7µF
DD
IN
R
R
EL
SW
= 2.0MΩ
= 560kΩ
V
70
73
90
96
98
(V)
CS
1
2
3
4
HV857LMG-G
2
LQH32CN221K21
green lamp)
*Murata Inductor
V
R
R
GND
DD
SW-osc
EL-osc
2
Package
MSOP-8
SOT-23
0805
0805
0805
0805
0603
V
V
C
L
A
B
S
-
X
8
7
6
5
202
202
204
204
204
(Hz)
f
EL
Manufacturer
Supertex Inc
L
220µH*
BAS21
Diodes Inc
X
Novacap
Murata
Any
Any
Any
Any
2.49
3.04
5.49
5.97
6.24
ft-lm
C
3.3nF
100V
S
Brightness
EL Lamp
0805N332K101NT
LQH32CN221K21
HV857LDB1
HV857LMG-G
BAS21
Part #
10.40
18.78
20.42
21.33
---
---
---
---
cd/m
8.51
2