HV4522PJ-G データシートの表示（PDF） - Supertex Inc
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HV4522PJ-G Datasheet PDF : 6 Pages
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Supertex inc.
HV4522
32-Channel Serial to Parallel Converter
with P-Channel Open Drain Outputs
Features
►► Processed with HVCMOS® Technology
►► Output voltages to -220V
►► Source current minimum 60mA
►► Shift register speed 8.0MHz
►► Polarity and blanking inputs
►► CMOS compatible inputs
►► Forward and reverse shifting options
►► Can be used with the HV5522 to provide 220V
push-pull operation
►► 44-lead PLCC surface mount package
General Description
The HV4522 is a low-voltage serial to high-voltage parallel
converter with P-Channel open drain outputs. This device
has been designed for use a driver for AC-electroluminescent
displays. It can also be used in any application requiring multiple
output high-voltage current source capabilities, such as driving
inkjet and electrostatic print heads, plasma panels, or vacuum
fluorescent displays.
This device consists of a 32-bit shift register, 32 data latches,
and control logic to perform polarity and blanking functions.
Data is shifted through the shift register on the logic high-to-
low transition of the clock. The HV4522 shifts 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. The
data in the shift register is latched when the latch enable pin is
brought to logic high, and then returned to ground. If the latch
enable pin is held high, the latch becomes transparent and the
shift register data is directly reflected in the outputs.
For applications requiring active pull down as well as pull up, the
HV4522 can be paired with the HV5522.
Functional Block Diagram
VSS
POL
BL
LE
DATA INPUT
CLK
32-Bit
Shift
Register
DATA OUT
Latch
Latch
Latch
Latch
HVOUT1
HVOUT2
(Outputs 3 to 30
not shown)
HVOUT31
HVOUT32
Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com
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