Microchip HV816DB2 Bedienungsanleitung


Lesen Sie kostenlos die 📖 deutsche Bedienungsanleitung für Microchip HV816DB2 (3 Seiten) in der Kategorie Nicht kategorisiert. Dieser Bedienungsanleitung war für 4 Personen hilfreich und wurde von 2 Benutzern mit durchschnittlich 4.5 Sternen bewertet

Seite 1/3
Supertex inc.
Supertex inc.
www.supertex.com
HV816DB2
Doc.# DSDB-HV816DB2
A061013
The Supertex HV816DB2 is a high brightness demoboard
with the circuitry to drive a 10in2 EL lamp using the HV816 in
a 4x4 QFN-16 package.
Simply connect the board to a power supply and an EL lamp
as shown in the circuit schematic on the following page.
The HV816DB2 circuit has been optimized to drive an EL
lamp size of 10in2. For different EL frequencies or smaller
EL lamps sizes, the demoboard can be re-optimized by
changing some of the component values.
The output voltage is typically ±180V for high lamp
brightness, using a single supply input voltage of 5.0V. An
external N-channel MOSFET, Supertex TN2425 is used to
boost the output voltage to a nominal value of 180V with an
input voltage of 5.0V.
For split supply applications, the diode BAS20 between VIN
and VDD has to be removed so separate supplies can be
used for VIN and VDD.
The discharge rate on the output for EL lamp can be adjusted
to minimize audible noise. By increasing the value of the
RSLEW resistor, the discharge rate will increase, which will
reduce audible noise but will also reduce brightness. RSLEW
can be set to a value between 100kΩ and 500kΩ with 100
for maximum brightness.
The HV816DB2 has the provision to set the EL lamp frequency
using the resistor REL on the board or by an external clock
input at the SEL pin. To use an external clock input, the REL
resistor should be removed and the REL-Osc pin should be
connected to GND.
Board Layout and Connection Diagram
Specications
VDD input voltage 2.7 to 5.5V
VIN inductor supply voltage 4.5 to 5.0V
Typical supply current 150mA
Lamp size 10in2
Lamp frequency 190Hz
Converter frequency 150kHz
Board dimensions 27mm x 27mm
General Description
D2
CDD
RREG RSLEW
CG
CIN
LX
M1
D1
CS
RSW
CSW
REL
CFEL
EL Lamp
+
5.0V
-
1.5 to
5.0V
0V
High Brightness 10in2
EL Lamp Driver Demoboard
2
HV816DB2
Supertex inc.
www.supertex.com
Doc.# DSDB-HV816DB2
A061013
HV816DB2 Circuit Schematic
Typical Performance
VDD = VIN
(V)
IIN
(mA)
VCS
(VPEAK)
fEL
(Hz)
Lamp Brightness
ft-lm cd/m2
5.0 150 190 190 15 50
U1
HV816K6-G
D1
ES1D
RREG
100kΩ
RSW = 590kΩ
REL = 1.0MΩ
RSLEW
100kΩ
EL Lamp
VREG
CS
GATELX VDRIVE
VOUT
RSLEW-OUT
SEL
EN
RSW-Osc
REL-Osc
VDD
HVGND GND
CFEL
100nF
CSW
100nF
CDD
100 Fµ
CIN
100 Fµ
CG
100nF
LX
LPS5030-473ML
M1
TN2425N8
VIN = 5.0V
CS
3.3nF
200V
NPO
VB
VA
D2
BAS20
EN = 1.5V to VDD
13 7 8
Backside
Slug
10
3
11
12
1416 15
9
5
4
2
1
6
Note:
CIN can be in the range of 47 to 100µF.
CDD can be in the range of 47 to 100µF.
Connections:
VIN, Input
Inductor input voltage. Single supply can be used for VIN and
VDD or separate supplies can be used. If separate supplies
are used, the diode BAS20 between VIN and VDD has to be
removed. The input range for VIN is 4.5 to 5.0V.
VDD, Input
Device input voltage.Single supply can be used for V IN
and
VDD or separate supplies can be used. If separate supplies
are used, the diode BAS20 between VIN and VDD has to be
removed. The input range for VDD is 2.7 to 5.5V.
GND
Device Ground. Connect to power supply ground.
EN, Input
A CMOS logic input which enables/disables the lamp driver.
A logic high (1.5V to VDD
) enables the driver and a logic low
(0 to 0.2V) disables the driver.
SEL, Input
CMOS logic input to set the EL frequency. To use this pin, the
REL-Osc pin should be connected to GND. The frequency
input at this pin should be 4x the desired output frequency.
An external CLK signal can be used for this input. If this pin
is not used, it should be connected to ground.
VA and VB Outputs
VA and VB are for EL Lamp connections. They should be
connected to an EL lamp. Polarity is irrevelant.
Supertex inc. 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
an adequate “product liability indemnification insurance agreement.” does not assume responsibility for use of devices described, and limits its liabilit Supertex inc. y
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 (website: http//wwwSupertex inc. .supertex.com)
©2013 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited. Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
www.supertex.com
3
HV816DB2
Doc.# DSDB-HV816DB2
A061013
Ref Description Package Manufacturer Part Number
LX47µH Inductor --- Coilcraft LPS5030-473ML
C
S3.3nF, 200V, NPO ceramic chip capacitor 1206 Any ---
RSW 1% 590kΩ chip resistor 0805 Any ---
REL 1% 1.0MΩ chip resistor 0805 Any ---
RREG 1% 100kΩ chip resistor 0805 Any ---
RSLEW 1% 100kΩ chip resistor 0805 Any ---
M1 200V, 3.5Ω N-channel MOSFET SOT-89 Supertex Inc. TN2425N8-G
CIN 100µF 6.3V ceramic chip capacitor 1206 Any ---
CDD 100µF 6.3V ceramic chip capacitor 1206 Any ---
CG100nF 10V ceramic chip capacitor 0805 Any ---
CSW 100nF, 10V ceramic chip capacitor 0805 Any ---
CFEL 100nF, 10V ceramic chip capacitor 0805 Any ---
D1 1.0A surface mount super fast diode SMA Diodes Inc. ES1D
D2 High voltage switching diode SOD-323 ON Semi BAS20HT1
U1 EL Driver IC 16-Lead (4x4) QFN Supertex Inc. HV816K6-G
Typical Performance


Produktspezifikationen

Marke: Microchip
Kategorie: Nicht kategorisiert
Modell: HV816DB2

Brauchst du Hilfe?

Wenn Sie Hilfe mit Microchip HV816DB2 benötigen, stellen Sie unten eine Frage und andere Benutzer werden Ihnen antworten




Bedienungsanleitung Nicht kategorisiert Microchip

Bedienungsanleitung Nicht kategorisiert

Neueste Bedienungsanleitung für -Kategorien-