HV528
16-Channel Serial to Parallel Converter
with High Voltage Backplane Driver and Push-Pull Outputs
Features
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HVCMOS
®
technology
Output voltage up to +200V
Shift register speed 500kHz @ V
DD
= 1.7V
16 high voltage outputs
High voltage backplane driver
CMOS input levels
General Description
The HV528 is a 200V, 16-channel serial to parallel converter.
The high voltage outputs and the backplane driver are
designed to source and sink ±1.0mA.
The high voltage outputs are controlled by a 16-bit serial shift
register, followed by a 16-bit latch. Data is shifted through
the shift registers during the low to high clock transition. A
data output buffer is provided for cascading multiple devices.
Data is transferred to the 16-bit latch when a logic level low is
applied to the LE input. Data is stored in the latch when LE is
high. Output states are controlled by the data in the latch and
by the POL pin.
Applications
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Multiple segment EL display
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Piezoelectric transducer driver
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Braille driver
Typical Application Circuit
Low Voltage
Power Supply
High Voltage
VBIAS Power Supply
DIN
HV
OUT
1
CLK
Low
Voltage
16
High
Voltage
EL
Segment
Panel
Micro
Processor
LE
POL
DOUT
Shift
Register
Latches
Level
Translators
&
Push-Pull
Output
HV
OUT
16
BP
Supertex HV528
to DIN of another HV528 for cascading (if needed)
SUPERTEX [ Supertex, Inc ]
