12-122

HV623

32-Channel 128-Level Amplitude Gray-Shade

Display Column Driver

Absolute Maximum Ratings

1

-0.5V to +7.5V

1

-0.5V to +90V

1.5A

1W

Operating temperature range

-40

°C to +70°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. All voltages are referenced to GND.

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

3. For operation above 25

°C ambient derate linearly to 70°C at 22.2mW/°C.

Features

5V CMOS inputs

Up to 80V modulation voltage

Capable of 128 levels of gray shading

20MHz data throughput rate

32 outputs per device (can be cascaded)

Pin-programmable shift direction (DIR)

D/A conversion cycle time is 32

µs

Diodes in output structure allow usage

in energy recovery systems

Available in 3-sided 64-lead gullwing package

General Description

The HV623 is a 32-channel driver IC for gray shade display use.

It is designed to produce varying output voltages between 3 and

80 volts. This amplitude modulation at the output is facilitated by

explanation.

This device consists of a dual 16-bit shift registers, 32 data latches

and comparators, and control logic to preform 128 levels of gray

shading. There are 7 bits of data inputs. Data is shifted through the

shift registers at both edges of the clock, resulting a data transfer

rate of twice of the shift clock frequency. When the DIR pin is high,

CSI/CSO is the input/output for the chip select pulse. When DIR

is low, CSI/CSO is the output/input for the chip select pulse. The

DIR = HIGH also allows the HV623 to shift data in the counter-

clockwise direction when viewed from the top of the package.

When the DIR pin is low, data is shifted in the clockwise direction.

The output circuitry allows the energy which is stored in the output

output transistor.

Ordering Information

Package Option

Device

64-Lead 3-sided Plastic Gullwing

HV623

HV623PG