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HV809

General Description

The Supertex HV809 is an off-line high voltage EL lamp driver

integrated circuit designed for driving EL lamps of up to 350nF at

400Hz. The input supply voltage can be a rectified nominal 120V

AC source or any other DC source up to 200V. The HV809 will

supply the EL lamp with an AC square wave with a peak-to-peak

voltage of two times the input DC voltage.

The HV809 has two internal oscillators, a low output voltage

linear regulator, and a high voltage output H-bridge. The high

voltage output H-bridge frequency is set by an external resistor

connected between V

For the HV809 in the 8-pin

package, an external RC network can be connected between the

oscillator’s osc1 and osc2 pins to pulse the EL lamp on and off.

Off-Line High Voltage EL Lamp Driver

Ordering Information

Absolute Maximum Ratings

HV

+210V

+15V

Operating Temperature Range

-25

°C to +85°C

Storage Temperature Range

-55

°C to +150°C

Power Dissipation

SO-8

500mW

SO-8 + Slug

1.5 Watts

7 Pin TO-220

15 Watts

Note:

*All voltages are referenced to GND.

Features

❏ Input voltage up to 200V DC

❏ 400V peak-to-peak output voltage

❏ Adjustable output lamp frequency

❏ Adjustable On/Off pulsing frequency

Applications

❏ Electronic Organizers

❏ Handheld Portable Computers

❏ Display Signs

❏ Portable Instrumentation Equipment

Package Options

Device

8-Lead SO

8-Lead SO + Slug

7-Pin TO-220

Die

HV809

HV809LG

HV809SG

HV809K2

HV809X

Pin Configurations

HV

IN

V

A

V

DD

V

B

osc2

GND

osc1

R

EL-osc

7 -Pin

TO-220

TAB: GND

1 2 3 4

5 6 7

Pin 01: osc1

Pin 04: GND

TAB:

GND

For detailed circuit and application information, please refer

to Application Note AN-H36.

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2

3

4

8

7

6

5

top view

SO-8

11/12/01

Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability

indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to

workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the

Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.