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Hi-Rel processing available
General Description
The HV570 is a low-voltage serial to high-voltage parallel con-
verter with P-channel open drain outputs. This device has been
designed for use as a driver for plasma panels.
The device has two parallel 32-bit shift registers, permitting data
rate twice the speed of one (they are clocked together). There
are also 64 latches and control logic to perform the blanking of
the outputs. HV
OUT
1 is connected to the first stage of the first shift
register through the blanking logic. Data is shifted through the
shift registers on the logic low to high transition of the clock. The
DIR pin causes CCW shifting when connected to V
SS
, and CW
shifting when connected to V
DD
. A data output buffer is provided
for cascading devices. This output reflects the current status of
the last bit of the shift register (HV
OUT
64). Operation of the shift
register is not affected by the LE (latch enable), or the BL
(blanking) inputs. Transfer of data from the shift registers to
latches occurs when the LE input is high. The data in the latches
is stored when LE is low.
The HV570 has 64 channels of output constant current sourcing
capability. They are adjustable from 0.1 to 2.0mA through one
external resistor or a current source.
Absolute Maximum Ratings
Supply voltage, V
DD1
Output Voltage, V
NN1
Logic input levels
1
Ground Current
2
Continuous total power dissipation
3
Plastic
Ceramic
Operating temperature range
Storage temperature range
Lead temperature 1.6mm (1/16 inch)
from case for 10 seconds
-0.5V to +7.5V
V
DD
+ 0.5V to -95V
-0.3V to V
DD
+0.3V
1.5A
1200mW
1900mW
Plastic
-40擄C to +85擄C
Ceramic -55擄C to +125擄C
-65擄C to +150擄C
260擄C
Notes:
1. All voltages are referenced to V
SS
.
2. Limited by the total power dissipated in the package.
3. For operation above 25擄C ambient derate linearly to maximum operating
temperature at 20mW/擄C for plastic and at 19mW/擄C for ceramic.
03/12/02
Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability
indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to
workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the
Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.
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