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Hi-Rel processing available
General Description
The HV506 is a low-voltage serial to high-voltage parallel con-
verter with push-pull outputs. It is especially suitable for use as
a symmetric row driver in AC thin-film electroluminescent
(ACTFEL) displays.
When the data reset pin (DR
IO
) is at logic high, it will reset all the
outputs of the internal shift register to zero. At the same time, the
output of the shift register will start shifting a logic high from the
least significant bit to the most significant bit. The DR
IO
can be
triggered at any time. The DIR pin controls the direction of data
through the device. When DIR is at logic high, DR
IOA
is the input
and DR
IOB
is the output. When DIR is grounded, DR
IOB
is the input
and the DR
IOA
is the output. See the Output Sequence Operation
Table for output sequence. The POL and OE pins perform the
polarity select and output enable function respectively. Data is
clocked through the shift register loaded on the low to high
transition of the clock. A logic high in the shift register will cause
the other corresponding output to swing to V
DD
if POL is high, or
to V
SS
if POL is low. All other outputs will be in the High-Z state.
If OE is at logic high all outputs will be in the High-Z state. An
output in the High-Z state may block up to 275V above V
SS
or
275V below V
DD
. The D
P
/D
N
pins are for the positive/negative
discharge of the high voltage output HV
OUT
. Data output buffers
are provided for cascading devices.
LV
DD
requires low current for the HV506 logic section. V
DD
requires high current for the output section . Typically these two
pins are at the same potential. The same current and potential
conditions apply to the LV
SS
, logic, and V
SS
, output pins. V
sub
must
always be equal or greater than the most positive supply.
Absolute Maximum Ratings
Logic supply voltage, LV
DD1
Output supply voltage, V
DD1
Substrate bias voltage, V
sub
Output voltage, HV
OUT
Logic input levels
Continuous total power dissipation
2
Ceramic
Plastic
Operating temperature range
Storage temperature range
Lead temperature 1.6mm (1/16 inch)
from case for 10 seconds
Notes:
1. All voltages are referenced to V
SS
.
2. For operation above 25擄C ambient derate linearly to maximum operating
temperture at 20mW/擄C for plasitc and at 19mW/擄C for ceramic.
3. V
sub
must be the most positive with respect to V
SS
.
-0.5V to +15V
-0.5V to +15V
See Note 3
鹵300V
-0.5V to V
DD
+0.5V
1900mW
1200mW
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
12/13/01
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
1
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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