1

HV57908

Device

80 Lead Quad

80 Lead Quad

80 Lead Quad

Ceramic Gullwing

Plastic Gullwing

Ceramic Gullwing

Die

(MIL-STD-883 Processed*)

HV57908

HV57908DG

HV57908PG

RBHV57908DG

HV57908X

*For Hi-Rel process flows, please refer to page 5-3 in the Databook.

Ordering Information

Package Options

Absolute Maximum Ratings

1

-0.5V to +7.5V

Output voltage, V

PP

-0.5V to +90V

Logic input levels

-0.3V to V

1.5A

Plastic

1200mW

Ceramic

1900mW

Operating temperature range

Plastic

-40°C to 85°C

Ceramic

-55°C to 125°C

Storage temperature range

-65°C to +150°C

Lead temperature 1.6mm (1/16 inch)

from case for 10 seconds

260°C

Notes:

1. All voltages are referenced to GND.

2. Limited by the total power dissipated in the package.

3. For operation above 25°C ambient derate linearly to maximum operating

temperature at 20mW/°C for plastic and at 19mW/°C for ceramic.

Features

❏ 5V CMOS logic

❏ Output voltages up to 80V

❏ Low power level shifting

❏ 8MHz data rate

❏ Latched data outputs

❏ Forward and reverse shifting options (DIR pin)

❏ Diode to V

❏ Outputs may be hot switched

❏ Hi-Rel processing available

8 MHz, 64-Channel Serial To Parallel Converter

With Push-Pull Outputs

General Description

The HV579 is a low-voltage serial to high-voltage parallel con-

verter with push-pull outputs. This device has been designed for

use as a driver for electroluminescent displays. It can also be used

in any application requiring multiple output high-voltage current

sourcing and sinking capability such as driving plasma panels,

vacuum fluorescent displays, or large matrix LCD displays.

The device consists of a 64-bit shift register, 64 latches, and

control logic to perform the polarity select and blanking of the

outputs. HVout1 is connected to the first stage of the shift register

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

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

DIR pin causes CCW shifting when connected to GND, and CW

shifting when connected to V

for cascading devices. This output reflects the current status of

register is not affected by the LE (latch enable), BL (blanking), or

the POL (polarity) inputs. Transfer of data from the shift registers

to the latches occurs when the LE (latch enable) input is high. The

data in the latches is stored when LE is low.

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.