HV803 Supertex, Inc., HV803 Datasheet

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HV803

Manufacturer Part Number
HV803
Description
Manufacturer
Supertex, Inc.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HV803LG
Manufacturer:
SUPERTEX
Quantity:
6 500
Part Number:
HV803LG
Manufacturer:
AMD
Quantity:
6 224
Ordering Information
Features
Applications
Absolute Maximum Ratings*
Supply Voltage, V
Output Voltage, V
Operating Temperature Range
Storage Temperature Range
Power Dissipation
Note:
*All voltages are referenced to GND.
Processed with HVCMOS
2.4V to 9.5V operating supply voltage
DC to AC conversion
180V peak-to-peak typical output voltage
Large output load capability typically 30nF
Short circuit protection on outputs
Adjustable output lamp frequency to control lamp color,
lamp life, and power consumption
Adjustable converter frequency to eliminate harmonics and
optimize power consumption
Enable/disable function
Low current draw under no load condition
Pagers
Cellular phones
Electronic personal organizers
GPS units
Handheld personal computers
Portable instrumentation
Device
HV803
DD
Cs
Input Voltage
2.4V to 9.5V
®
technology
High-Voltage EL Lamp Driver
8-Lead SO
HV803LG
-65°C to +150°C
-25°C to +85°C
-0.5V to +120V
-0.5V to +10V
Package Options
400mW
15-1
HV803X
Die
ςΑ
General Description
The Supertex HV803 is a high-voltage driver designed for driving
EL lamps of up to 30nF. EL lamps greater than 30nF can be
driven for applications not requiring high brightness. The input
supply voltage range is from 2.4 to 9.5V. The device uses a single
inductor and a minimum number of passive components. The
nominal regulated output voltage that is applied to the EL lamp
is ±90V. The chip can be enabled by connecting the resistors on
R
The HV803 has two internal oscillators, a switching MOSFET,
and a high-voltage EL lamp driver. The frequency for the switch-
ing converter MOSFET is set by an external resistor connected
between the R
driver frequency is set by an external resistor connected be-
tween R
connected between the L
capacitor is connected between C
is connected between V
The switching MOSFET charges the external inductor and
discharges it into the C
increase. Once the voltage at C
the switching MOSFET is turned OFF to conserve power. The
outputs V
switched in opposite states to achieve 180V peak-to-peak across
the EL lamp.
Pin Configuration
SW-osc
and R
EL-osc
A
R
and V
EL-osc
SW-osc
V
SW-osc
pin and the V
DD
C
L
s
x
to V
B
are configured as an H-bridge and are
pin and the supply pin V
1
2
3
4
DD
s
A
capacitor. The voltage at C
and disabled when connected to GND.
and V
x
and V
SO-8
DD
s
B
reaches a nominal value of 90V,
pins.
S
pin. An external inductor is
DD
and GND pins. The EL lamp
pins. A 0.01µF to 0.1µF
8
7
6
5
R
V
V
GND
HV803
DD
A
B
EL-osc
. The EL lamp
s
will start to
15

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HV803 Summary of contents

Page 1

... Die HV803LG HV803X General Description The Supertex HV803 is a high-voltage driver designed for driving EL lamps 30nF. EL lamps greater than 30nF can be driven for applications not requiring high brightness. The input supply voltage range is from 2.4 to 9.5V. The device uses a single inductor and a minimum number of passive components. The nominal regulated output voltage that is applied to the EL lamp is ± ...

Page 2

... SW-osc 100 V = 3.0V ±5%. See Figure 1. µA IN 300 µ 5.0V ±5%. See Figure 2. IN 500 µ 9.0V ±5%. See Figure 3.0V. See Figure 3.0V. See Figure 1. IN 430 3.0V. See Figure KHz V = 3.0V. See Figure Max Units Conditions 9 °C HV803 ...

Page 3

... IN 2MΩ EL-osc 750KΩ SW-osc 1N4148 GND HV803 0.1µF 100V 15 Output Osc 2.0KΩ 7 10nF 6 5 Equivalent to 3 square inch lamp. HV803 15 ...

Page 4

... Brightness vs. Inductor Value IN CS Brightness (ft-Im) I (mA) IN 250 400 550 Inductor Value (µH) 15 Lamp vs ( ( (V) CS 9.0 8.0 7.0 V (V) 6.0 CS 5.0 4.0 3.0 2.0 1.0 0 700 850 1000 HV803 ...

Page 5

... R SW-osc 1N4148 GND HV803 0.1µF 1nF 100V 15-5 8 2.0KΩ lamp vs ( ( (V) CS HV803 ...

Page 6

... R SW-osc 1N4148 0.1µF HV803 0.1µF 1nF 100V 8.5 9.5 IN 8.5 9.5 15 EL-osc 5.1KΩ GND vs 5.5 6.5 7 ( (V) CS HV803 2 lamp 8.5 9 ...

Page 7

... EL lamp. The input power, (V dissipation of the package (350mW), an external resistor in series with one side of the lamp is recommended to help reduce the package power dissipation. Enable/Disable Configuration The HV803 can be easily enabled and disabled via a logic control signal on the R and R resistors as shown in Figure 4 below. ...

Page 8

... This is shown in Figure 5. The regulated voltage can be used to run the internal logic of the HV803. The amount of current necessary to run the internal logic is typically 30 to 60µA. Therefore, the regulated voltage could easily provide the current without being loaded down ...

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