HV860DB1 Supertex, HV860DB1 Datasheet
HV860DB1
Manufacturer Part Number
HV860DB1
Description
Power Management IC Development Tools HV860 Demo Board
Manufacturer
Supertex
Datasheet
1.HV860DB1.pdf
(2 pages)
Specifications of HV860DB1
Product Category
Power Management IC Development Tools
Product
Power Management Development Tools
Tool Is For Evaluation Of
HV860
Description/function
EL Driver Demo Board
Factory Pack Quantity
1
General Description
The Supertex HV860DB1 demoboard contains all necessary
circuitry to demonstrate the features of the HV860 EL lamp
driver.
Simply connect it to a power supply and a lamp as shown in
Figure1. For EL lamp dimming, either a potentiometer or an n-
channel open drain PWM signal can be used, but not both.
The potentiometer is used as a variable voltage divider to change
the voltage at the V
the V
voltage amplitude, and thereby the lamp brightness, increases
when the potentiometer is rotated counter-clockwise, and the
lamp brightness decreases when it is rotated clockwise.
Board Layout and Connection Diagram
Connections:
EN - (Enable Input)
A CMOS logic input which enables/disables the lamp driver. A logic
high (1.5V) enables the driver and a logic low (connect to GND)
disables the driver.
V
Supplies the HV860 EL driver IC. The supplied demo board is op-
timized for 3.0V operation, with an operating range from 2.4V to
4.5V. It connects to the positive terminal of a power supply.
PWM - (PWM Input)
Supplies the PWM signal for dimming the EL lamp. The frequency
of this signal can vary between 20kHz and 100kHz. For EL lamp
dimming using the PWM input, either the potentiometer has to be
removed or its value set to for maximum lamp brightness.
The n-channel open drain PWM signal pulls the 10kΩ resistor to
ground. When the duty cycle of this PWM signal is changed, the
Note:
Supertex inc.
DD
All of the above connections must be made before powering up the supply voltages.
The V
- (IC Supply)
REG
REG
pin should not be touched after power-up.
voltage thereby changing the V
Supertex inc.
Actual Dimensions: 20mm x 25mm
REG
pin. The V
REF
EL Lamp Driver Demoboard
●
is voltage divided to change
1235 Bordeaux Drive, Sunnyvale, CA 94089
Low Noise, Dimmable
CS
voltage. The V
CS
effective voltage on the V
voltage, and hence the lamp brightness. The higher the duty cycle,
the higher the lamp brightness, and vice versa.
V
They connect to the EL lamp terminals. Polarity is irrelevant.
V
Supplies the high voltage power converter. The demo board is op-
timized for 5.5V operation. It connects to the positive terminal of a
power supply.
GND - (Circuit Ground)
Connect to V
tor for both V
supply bypass capacitors are not required.
A
IN
and V
Specifications
- (Inductor Supply)
Parameter
Input voltage:
V
Typical supply current:
Lamp size:
Lamp frequency:
Converter frequency:
IN
PWM
VDD
inductor supply voltage:
EN
B
- (Lamp Connections)
●
DD
DD
Tel: 408-222-8888
and V
and V
R
Potentiometer
SW
R
IN
IN
EL
negative terminals. Supply bypass capaci-
are provided on the demo board. External
REG
HV860DB1
C
pin is changed. This changes the V
DD
R
●
DIM
www.supertex.com
R
PWM
C
IN
HV860DB1
C
DIM
L
X
2.4 to 4.5V
D
C
S
150kHz
200Hz
Value
10mA
3.5in
VA
VB
VIN
GND
5.5V
2
CS
Related parts for HV860DB1
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:
HV860DB1 Summary of contents
Page 1
... Supertex inc. General Description The Supertex HV860DB1 demoboard contains all necessary circuitry to demonstrate the features of the HV860 EL lamp driver. Simply connect power supply and a lamp as shown in Figure1. For EL lamp dimming, either a potentiometer channel open drain PWM signal can be used, but not both. ...
Page 2
... SOD-323 --- 12-Lead QFN does not assume responsibility for use of devices described, and limits its liability Supertex inc. 2 HV860DB1 Cooper Inductor SD3114-221, 220μH 3.3nF, BAS20HT1 200V 1206 Package Lamp 8 = 3.3nF 200V NPO and the 2MΩ potentiometer. ...