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02/96/022

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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

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Device

44 J-Lead Quad

Die

Plastic Chip Carrier

in waffle pack

HV9708

HV9708PJ

HV9708X

HV9808

HV9808PJ

HV9808X

Ordering Information

32-Channel Serial To Parallel Converter

With High Voltage Push-Pull Outputs

Features

❏ Output voltages up to 80V

❏ Low power level shifting

❏ Shift register speed 8MHz

❏ Latched data outputs

❏ Forward and reverse shifting options

❏ Diode to V

❏ 5V CMOS compatible inputs

HV9708

HV9808

General Description

The HV97 and HV98 are low-voltage serial to high-voltage paral-

lel converters with push-pull outputs. These devices have been

designed for use as drivers for AC-electroluminescent displays.

They can also be used in any application requiring multiple output

high-voltage current sourcing and sinking capabilities such as

driving plasma panels, vacuum fluorescent displays, or large

matrix LCD displays. The inputs are fully CMOS compatible.

These devices consist of a 32-bit shift register, 32 latches, and

control logic to perform the polarity select and blanking of the

through the polarity and blanking logic. Data is shifted through the

shift register on the logic low to high transition of the clock. The

HV97 shifts data in the clockwise direction when viewed from the

top of the package and the HV98 shifts in the counterclockwise

direction. A data output buffer is provided for cascading devices.

This output reflects the current status of the last bit of the shift

register (HV

by the LE (latch enable), BL (blanking), or the POL (polarity) in-

puts. Transfer of data from the shift register to the latch occurs

when the LE (latch enable) input is high. The data in the latch is

stored when LE is low.

2

-0.5V to +7V

Output voltage, V

PP

2

V

-0.5V to V

1.5A

1200mW

Operating temperature range

-40°C to +85°C

Storage temperature range

-65°C to +150°C

Lead temperature 1.6mm (1/16 inch)

260°C

from case for 10 seconds

Notes:

1. Device will survive (but operation may not be specified or guaranteed) at

these extremes.

2. All voltages are referenced to GND.

3. Duty cycle is limited by the total power dissipated in the package.

4. For operation above 25°C ambient, derate linearly to 70°C at 12mW/°C.

Package Options