HV809 Datasheet, PDF (1/4 Pages) Supertex, Inc – Off-Line High Voltage EL Lamp Driver

HV809
Off-Line High Voltage EL Lamp Driver
Ordering Information
Device
HV809
8-Lead SO
HV809LG
Package Options
8-Lead SO + Slug
HV809SG
7-Pin TO-220
HV809K2
Die
HV809X
Features
❏ Processed with HVCMOS^® technology
❏ Input voltage up to 200V DC
❏ 400V peak-to-peak output voltage
❏ Output load up to 350nF (100 in² for 3.5nF/in² lamp)
❏ Adjustable output lamp frequency
❏ Adjustable On/Off pulsing frequency
Applications
❏ Electronic Organizers
❏ Handheld Portable Computers
❏ Display Signs
❏ Portable Instrumentation Equipment
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 the R_EL-osc and GND pins. The EL lamp is
connected between V_A and V_B. 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.
Pin Configurations
HV_IN ¹
V_DD ²
osc2 ³
osc1 4
8 _VA
7 _VB
6 _GND
R 5
EL-osc
Absolute Maximum Ratings
HV_IN, Input Voltage
V_DD, Internal Logic Voltage
Operating Temperature Range
+210V
+15V
-25°C to +85°C
Storage Temperature Range
-55°C to +150°C
Power Dissipation
SO-8
SO-8 + Slug
7 Pin TO-220
500mW
1.5 Watts
15 Watts
top view
SO-8
TAB: GND
123456 ₇
7 -Pin
TO-220
Pin 01: osc1
Pin 02: V_DD
Pin 03: R_EL-osc
Pin 04: GND
Pin 05: V_B
Pin 06: V_A
Pin 07: HV_IN
TAB: GND
Note:
*All voltages are referenced to GND.
For detailed circuit and application information, please refer
to Application Note AN-H36.
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 prod₁ucts, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.