HV9808_14 Datasheet, PDF (1/7 Pages) Supertex, Inc – 32-Channel Serial to Parallel Converter With High Voltage Push-Pull Outputs

Supertex inc.
HV9808
32-Channel Serial to Parallel Converter
With High Voltage Push-Pull Outputs
Features
►►Processed with HVCMOS^® technology
►►Output voltages up to 80V
►►Low power level shifting
►►Shift register speed 8.0MHz
►►Latched data outputs
►►5.0V CMOS compatible inputs
►►Forward and reverse shifting options
►►Diode to VPP allows efficient power recovery
General Description
The HV9808 is a low voltage serial to high voltage parallel
converters with push-pull outputs. This device has been designed
for use as a driver for AC-electroluminescent displays.It can also
be used in any application requiring multiple output, high voltage
current sourcing and sinking capabilities such as driving plasma
panels, vacuum fluorescent, or large matrix LCD displays. The
inputs are fully CMOS compatible.
This device consists of a 32-bit shift register, 32 latches, and
control logic to perform the polarity select and blanking of the
outputs. HV_OUT1 is connected to the first stage of the shift register
through the polarity and blanking logic. Data is shifted through
the shift register on the logic low to high transition of the clock.
The HV9808 shifts data in the counter-clockwise direction when
viewed from the top of the package. A data output buffer is
provided for cascading devices.This output reflects the current
status of the last bit of the shift register (HV_OUT32). Operation
of the shift register is not affected 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.
Block Diagram
VPP
POLARITY
BLANKING
LATCH ENABLE
DATA INPUT
CLOCK
32-Bit
Shift
Register
DATA OUT
Latch
Latch
Latch
Latch
HV_OUT1
HV_OUT2
(Outputs 3 to 30
not shown)
HV_OUT31
HV_OUT32
Doc.# DSFP-HV9808
B032714
Supertex inc.
www.supertex.com