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HV623PG Datasheet

  • HV623PG

  • 32-Channel 128-Level Amplitude Gray-Shade Display Column Dri...

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HV623
32-Channel 128-Level Amplitude Gray-Shade
Display Column Driver
Ordering Information
Package Option
Device
HV623
64-Lead 3-sided Plastic Gullwing
HV623PG
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碌s
Diodes in output structure allow usage
in energy recovery systems
Integrated HVCMOS
廬
technology
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
an external ramp voltage V
R
. See Theory of Operation for detailed
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
capacitance to be returned to V
PP
through the body diode of the
output transistor.
Absolute Maximum Ratings
Supply voltage, V
DD1
Supply voltage, V
PP1
Logic input levels
1
Ground current
2
Continuous total power dissipation
3
Operating temperature range
Storage temperature range
Lead temperature 1.6mm (1/16 inch)
from case for 10 seconds
-0.5V to +7.5V
-0.5V to +90V
-0.5 to V
DD
+ 0.5V
1.5A
1W
-40擄C to +70擄C
-65擄C to +150擄C
260擄C
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擄C ambient derate linearly to 70擄C at 22.2mW/擄C.
12-122

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