HV528 Datasheet, PDF (1/8 Pages) Supertex, Inc – 16-Channel Serial to Parallel Converter with High Voltage Backplane Driver and Push-Pull Outputs

HV528
16-Channel Serial to Parallel Converter
with High Voltage Backplane Driver and Push-Pull Outputs
Features
► 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
Applications
► Multiple segment EL display
► Piezoelectric transducer driver
► Braille driver
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.
Typical Application Circuit
Low Voltage
Power Supply
High Voltage
VBIAS Power Supply
Micro
Processor
DIN
CLK
LE
POL
DOUT
HV_OUT1
Low
Voltage
Shift
Register
Latches
High
Voltage
16
Level
Translators
&
Push-Pull ^HVOUT16
Output
BP
Supertex HV528
to DIN of another HV528 for cascading (if needed)
EL
Segment
Panel