HV824LG SUTEX [Supertex, Inc], HV824LG Datasheet

HV824LG

Manufacturer Part Number

HV824LG

Description

High Voltage EL Lamp Driver

Manufacturer

SUTEX [Supertex, Inc]

Datasheet

1.HV824LG.pdf (3 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

HV824LG

Manufacturer:

NVE

Quantity:

4 211

Current page: 1 of 3
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Applications

Ordering Information

Features

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

1.0V to 1.6V supply voltage

DC to AC conversion

Permits the use of high-resistance elastomeric lamp

connectors

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

Portable Transceiver

Portable Instrumentation

Cellular Phones

Device

HV824

Input Voltage

1.0V to 1.6V

technology

High Voltage EL Lamp Driver

8-Lead SO

HV824LG

Package Options

-65 C to +150 C

-25 C to +85 C

-0.5V to +120V

-0.5V to +2.0V

400mW

HV824X

Die

15-25

General Description

The Supertex HV824 is a high voltage driver designed to drive EL

lamps with capacitive loads of 2nF to 15nF. The input supply voltage

range is 1.0V to1.6V. The device uses a single inductor and a

minimum number of passive components. Typical output voltage

applied to the EL lamp is 120V to 150V peak-to-peak. The HV824

can be enabled/disabled by connecting the R

enables the IC when it is at logic low.

The HV824 has two internal oscillators, a switching MOSFET, and

a high voltage EL lamp driver. The frequency for the switching

MOSFET is set by an external resistor connected between the

an external resistor connected between the R

pin. An external inductor is connected between the L

A 0.01 F to 0.1 F capacitor is connected between C

pins. The EL lamp is connected between V

The switching MOSFET charges the external inductor and dis-

charges it into the 0.01 F to 0.1 F capacitor at C

value of 75V, the switching MOSFET is turned OFF to conserve

power. The outputs V

are switching in opposite states to achieve a maximum voltage of

180V peak-to-peak across the EL lamp.

Pin Configuration

sw-osc

will start to increase. Once the voltage at C

/ground. In die form, the device has an enable bar pad which

pin and the V

GND

SW-osc

EL-osc

pin. The EL lamp driver frequency is set by

and V

top view

SO-8

are configured as an H-bridge and

Advanced Information

EL-osc

and V

reaches a nominal

HV824

. The voltage at

pin and the V

and V

resistor to

and GND

pins.

Related parts for HV824LG

HV824LG Summary of contents

Page 1

... Note: *All voltages are referenced to GND. Package Options 8-Lead SO Die HV824LG HV824X General Description The Supertex HV824 is a high voltage driver designed to drive EL lamps with capacitive loads of 2nF to 15nF. The input supply voltage range is 1.0V to1.6V. The device uses a single inductor and a minimum number of passive components ...

Page 2

Electrical Characteristics DC Characteristics (Over recommended operating conditions unless otherwise specified, T Symbol Parameter I Quiescent V supply current DDQ DD I Input current going into the Input current including inductor current Output voltage peak-to-peak ...

Page 3

... DD – Typical Performance Lamp Size 1.5in 1.0V-1.5V 70mA 75V + C _ 0.7V Enable Signal SW-osc EL-osc 4 GND HV824LG V f Brightness CS EL 75V 333Hz 5.0ft-lm 15- Output Osc Lamp ...

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