Microchip HV852DB1 Handleiding
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Supertex inc.
Supertex inc.
www.supertex.com
HV852DB1
Doc.# DSDB-HV852DB1
A032813
The Supertex HV852DB1 demoboard contains all necessary
circuitry to demonstrate the features of the HV852 EL lamp
driver.
Simply connect it to a power supply and a lamp, as shown
below. For additional assistance in implementation of the
HV852 circuit, please refer to the HV852 data sheet.
High Voltage, Low Noise,
Inductorless EL Lamp Driver Demoboard
Parameter Value
VDD input voltage:2.4 to 5.0V
Supply current:25mA
Lamp size:1.5in2
Lamp frequency:245Hz
Connections:
EN - Enable Input
Enables/Disables the lamp driver. Logic high (VDD), enables
the driver, and a logic low (GND), disables the driver. This
input may be connected to a mechanical switch, or to a logic
circuit output.
VDD- IC Supply
Supplies the HV852 EL driver IC. The supplied circuit is
optimized for 2.4 to 5.0V operation.
VA
and VB - Lamp Connections
Connects to an EL lamp. Polarity is irrelevant.
GND - Circuit Ground
Connect to VDD negative terminals. Supply bypass capacitor
for VDD is provided on the demo board. External supply
bypass capacitors are not necessary.
CLKEN - Clock Enable
To use external clock for setting the EL lamp frequency, this
pin will need to be connected to VDD. To set the lamp frequency
via REL, this pin will need to be connected to GND.
CLKIN - Logic Input
An external logic clock applied to this pin can be used to set
the EL lamp frequency. When using external clock signal,
REL
will need to be removed, and RELpin will need to be
connected to GND. CLKEN will need to be connected to VDD
when an external clock signal is used. Connect both CLKEN
and CLKIN to GND when not in use.
General DescriptionSpecications
Board Layout and Connection Diagram
GND
CLKIN
EN
VDD VA
VB
CLKEN
REL CDD
HV852DB1
HV852
Actual Dimensions: 13mm x 8.0mm
Product specificaties
| Merk: | Microchip |
| Categorie: | Niet gecategoriseerd |
| Model: | HV852DB1 |
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