❏ Output voltages up to 230V
❏ Low-power level shifting
❏ Source/Sink current 70mA (min.)
❏ Shift register speed 4MHz
❏ Pin-programmable shift direction
❏ 44-lead plastic & ceramic surface-mount packages
❏ Hi-Rel processing available
Absolute Maximum Ratings
Supply voltage, V
Supply voltage, V
Logic input levels
Ground current
Continuous total power dissipation
Operating temperature rangePlastic-40°C to +85°C
Storage temperature range-65°C to +150°C
Lead temperature 1.6mm (1/16 inch)260°C
from case for 10 seconds
1
DD
1
PP
1
2
3
:Plastic1200mW
-0.3V to +15V
-0.3V to +250V
-0.3V to VDD +0.3V
1.5A
Ceramic1500mW
Ceramic-55°C to 125°C
General Description
The HV7022-C is a low-voltage serial to high-voltage parallel
converter with push-pull outputs. It is especially suited for use as
a symmetric row driver in AC thin-film electroluminescent (ACTFEL)
displays. The HV70 offers 34 output lines, a direction (DIR) pin to
give CW or CCW shift register loading, output enable (OE), and
polarity (POL) control. After DATA INPUT is entered (on the falling
edge of CLOCK), a logic high will cause the output to swing to V
if POL is high, or to GND if POL is low.
PP
Notes:
1. All voltages are referenced to GND.
2. Duty cycle is limited by the total power dissipated in the package.
3. For operation above 25°C ambient derate linearly to maximum operating
temperature at 25mW/°C for plastic and at 15mW/°C for ceramic.
For Detailed circuit and application information, please refer
to Application Note AN-H3.
02/96/022
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.
1
Electrical Characteristics
(over recommended operating conditions of V
DC Characteristics
SymbolParameterMinMaxUnitsConditions
I
DD
I
PP
I
DDQ
V
OH
V
OL
I
IH
I
IL
Notes:
1. The total number of ON outputs times the duty cycle must not exceed the allowable package power disspation.
2. Over military temperature range (-55°C to 125°C).
VDD supply current10mAf
High voltage supply current4mA1 Output high
Quiescent VDD supply current100µAAll VIN = GND or V
High-level outputHV
100µAAll Outputs low or High-Z
750µAAll Outputs low or High-Z
(125°C)
OUT
195VIO= -70mA (-50mA)
Data out11VIO= -500µA
OUT
30VIO= 70mA (+50mA)
Data out1VIO= 500µA
IH
IL
HV7022-C
= 4MHz
1
DD
2
2
= 12V
= 0V
AC Characteristics (V
= 12V, TC = 25°C)
DD
SymbolParameterMinMaxUnitsConditions
f
CLK
t
W
t
SUD
t
HD
t
SUC
t
SUE
t
SUP
t
HC
t
HE
t
HP
t
DHL
t
DLH
tTHL
t
TLH
t
ONH
Clock frequency4MHz
Pulse duration clock high or low125ns
Data set-up time before falling clock100ns
Data hold time after falling clock100ns
Setup time clock low before VPP↑ or GND↓300ns
Setup time enable high before VPP↑ or GND↓300ns
Setup time polarity high or low before VPP↑ or GND↓300ns
Hold time clock high after VPP↑ or GND↓500ns
Hold time enable high after VPP↑ or GND↓300ns
Hold time polarity high or low after VPP↑ or GND↓300ns
Delay time high to low level output from clock150nsCL = 10pF
Delay time low to high level output from clock200nsCL = 10pF
Transition time high to low level serial output200nsCL = 15pF
Transition time low to high level serial output100nsCL = 15pF
High level turn-on time Q outputs from enable500nsIO = -50 mA,VOH =195V
RL = 2 kΩ to 95V
t
ONL
t
OFFH
t
OFFL
Low level turn-on time Q outputs from enable500nsIO = 50 mA,VOH =130V
= 2 kΩ to 30V
R
L
High level turn-off time Q outputs from enable1000nsIO = -50 mA,VOH =195V
= 2 kΩ to 95V
R
L
Low level turn-off time Q outputs from enable500nsIO = 50 mA,VOH =130V
RL = 2 kΩ to 30V
Slew rate, V
or GND45V/µsWith one active output
PP
driving a 4.7 nF load to
V
PP
or GND
2
Recommended Operating Conditions
SymbolParameterMinMaxUnits
V
DD
V
PP
V
IH
V
IL
f
CLK
T
A
I
OD
Note:
Power-up sequence should be the following:
1. Connect ground.
2. Apply V
3. Set all inputs (Data, CLK, Enable, etc.) to a known state.
4. Apply V
5. The V
Power-down sequence should be the reverse of the above.
.
DD
.
PP
should not drop below VDD or float during operation.
PP
Logic supply voltage10.813.2V
High voltage supply230V
High-level input voltageVDD = 10.8V8.1V