HV825DB1 Supertex, HV825DB1 Datasheet
HV825DB1
Manufacturer Part Number
HV825DB1
Description
Power Management IC Development Tools EL LAMP DRIVER DEMOBOARD
Manufacturer
Supertex
Datasheet
1.HV825DB1.pdf
(2 pages)
Specifications of HV825DB1
Product
Power Management Development Tools
Tool Is For Evaluation Of
HV825
Description/function
EL Driver Demo Board
Factory Pack Quantity
1
General Description
The HV825DB1 EL Driver demoboard contains all the circuitry
necessary to drive an EL (Electroluminescent) lamp. Simply
connect it to a power supply and a lamp as shown below.
The supplied circuit has been optimized to drive a 1.5in
lamp from a 1.5V supply. The circuit may be customized with
different component values to suit a particular application. For
additional assitance in designing EL driver circuits, please refer
to Application Notes AN-H33 (EL Lamp Driver Circuits)
and AN-H34 (HV823 & HV825 EL Lamp Driver Circuits).
Board Layout and Connection Diagram
Connections:
EN - Enable Input
Enables/disables the lamp driver. A logic high (V
the driver and a logic low (GND) disables the driver. This
input may be connected to a mechanical switch as shown,
or to a logic circuit output that has a source impedance of
less than 20kΩ.
V
Supplies the HV825 EL driver IC. The supplied circuit is op-
timized for 1.5V operation. Current draw is less than 1.0µA
when disabled.
DD
- IC Supply
Supertex inc.
Enable
On
Off
1.5V
connect together
1235 Bordeaux Drive, Sunnyvale, CA 94089
V
GND
EN
V
DD
DD
IN
Demoboard
) enables
EL Driver
C
DD
2
C
IN
Specifications
V
Supplies the high voltage power converter. Current draw is
approximately 27mA.
GND - Circuit Ground
Connect to V
capacitors for both V
board. External supply bypass capacitors are not neces-
sary.
V
Connect to EL lamp of 1.5in
L
A
IN
Parameter
Supply voltage
Supply current
Lamp size range
Lamp frequency
Converter frequency
R
and V
- Inductor Supply
SW
D
R
B
EL
825
- Lamp Connections
Tel: 408-222-8888
DD
HV825DB1
C
S
and V
C
SW
V
DD
V
IN
B
A
and V
negative terminals. Supply bypass
2
. Polarity is irrelevant.
IN
www.supertex.com
are provided on the demo
HV825DB1
30KHz (typical)
450Hz (typical)
27mA (typical)
EL
Lamp
Value
1.5in
1.5V
2
Related parts for HV825DB1
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
32-channel Serial To Parallel Converter With High Voltage Push-pull Outputs - Supertex, Inc
Manufacturer:
Supertex, Inc.
Datasheet:
HV825DB1 Summary of contents
Page 1
... General Description The HV825DB1 EL Driver demoboard contains all the circuitry necessary to drive an EL (Electroluminescent) lamp. Simply connect power supply and a lamp as shown below. The supplied circuit has been optimized to drive a 1.5in lamp from a 1.5V supply. The circuit may be customized with different component values to suit a particular application. For ...
Page 2
... HV825DB1 Circuit Schematic Enable DD OFF = GND V DD Note GND Note: 1. Tie V and V together if split suppies are not used not needed when a single supply is used. DD Modifiying the Supplied Circuit The supplied circuit is optimized to drive a 1.5in To better suit other applications, the circuit can be modified by changing one or more components ...