1
32-Channel Vacuum-Fluorescent Display Driver
Package Options
Device
40 Pin Dip
44 Plastic Chip Carrier
Die
HV518
HV518P
HV518PJ
HV518X
Features
32 output lines
90V output swing
Active pull-down
Latches on all outputs
Up to 6MHz @ V
DD
= 5V
-40
C to +85
C operation
Absolute Maximum Ratings
Supply voltage, V
DD
1
-0.5V to +6.0V
Supply voltage, V
PP
1
-0.5V to +90V
Logic input levels
1
-0.5V to V
DD
+0.5V
Continuous total power dissipation
2,3
1200mW
Operating temperature range
-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
Notes:
1. All voltages 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 85
C at 20mW/
C.
HV518
Ordering Information
General Description
The HV518 is designed for vacuum fluorescent or DC plasma
applications, where it can serve as a segment, digit or matrix
display driver. Each device has 32 outputs, 32 latches and a 32
bit cascadable shift register.
Serial data enters the shift register on the LOW-to-HIGH transition
of the clock input. With latch enable (LE) HIGH, parallel data is
transferred to the output buffers through a 32-bit latch. When LE
is low the data is stored in the latch. When STROBE is LOW, all
outputs are enabled; if STROBE is HIGH, all outputs are LOW.
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
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.
2
HV518
Symbol
Parameter
Min
Typ
Max
Units
Conditions
I
DD
Supply current
10
mA
V
DD
= 5V, f
CH
= 6.0 MHz
I
DDQ
Quiescent supply current
0.5
mA
V
DD
= 5.5V, V
IN
= 0V
I
PP
Supply current
12
mA
Output high, T
A
= -40
C
7
10
mA
Output high, T
A
= 0 to +85
C
500
A
Outputs low
V
OH
High-level output voltage
HVoutput
70.0
V
I
OH
= -25mA
Serial output
4.5
4.9
5
V
V
DD
= 5V, I
OH
= -20
A
V
OL
Low-level output
HVoutput
5
V
I
OL
= 1mA
Serial output
0.06
0.8
V
I
OL
=20
A
I
IH
High-level logic input current
0.1
1
A
V
IH
= V
DD
I
IL
Low-level logic input current
-0.1
-1
A
V
IL
= 0V
Note:
The total number of ON outputs times the duty cycle must not exceed the allowable package power disspation.
Electrical Characteristics
(over recommended ranges of operating free-air temperature and V
DD
. Unless otherwise noted, V
PP
= 80V)
Symbol
Parameter
Min
Max
Unit
Conditions
t
d
Delay time, Clock to data output
V
DD
= 4.5V
600
ns
C
L
=15 pF
See Figure 4
t
DHL
Delay time, high-to-low-level,
from latch enable
V
DD
= 4.5V
1.5
s
See Figure 5
HVoutput
from strobe
1
See Figure 6
t
DLH
Delay time, low-to-high-level
from latch enable
V
DD
= 4.5V
1.5
s
See Figure 5
HVoutput
from strobe
1
See Figure 6
t
THL
Transition time, high-to-low-level, HVoutput
V
DD
= 4.5V
3
s
See Figure 6
t
TLH
Transition time, low-to-high-level, HVoutput
V
DD
= 4.5V
2.5
s
See Figure 6
Switching Characteristics
(V
PP
= 80V, C
L
= 50 pF, T
A
= 25
C, unless otherwise noted)
Symbol
Parameter
Min
Max
Units
V
DD
Logic voltage supply
4.5
5.5
V
V
PP
High voltage supply
8
80
V
V
IH
High-level input voltage (See Fig.3.)
V
DD
= 4.5V
3.5
V
V
IL
Low-level input voltage (See Fig. 3.)
V
DD
= 4.5V
1
V
I
OH
High-level output current
-25
mA
I
OL
Low-level output current
2
mA
f
CLK
Clock frequency (see Figure 3)
V
DD
= 4.5V
6.0
MHz
t
w(CKH)
Pulse duration , clock high
V
DD
= 4.5V
83
ns
t
w(CKL)
Pulse duration , clock low
V
DD
= 4.5V
83
ns
t
su
Setup time, data before clock
V
DD
= 4.5V
75
ns
t
h
Hold time, data after clock
V
DD
= 4.5V
75
ns
T
A
Operating free-air temperature
-40
85
C
Note:
Power-up sequence should be the following:
1. Connect ground.
4.
Apply V
PP
.
2. Apply V
DD
.
5.
The V
PP
should not drop below V
DD
or float during operation.
3. Set all inputs (Data, CLK, Enable, etc.) to a known state.
Power-down sequence should be the reverse of the above.
Recommended Operating Conditions
(T
A
= 25
C, unless otherwise noted)
5
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 FAX: (408) 222-4895
www.supertex.com
12/13/010
2001 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
HV518
6
40
41
42
43
44
1
2
3
4
5
39 38 37 36 35 34 33 32 31 30 29
18
28
27
26
25
24
23
22
21
20
19
7
8
9
10 11 12 13 14 15 16 17
top view
1
20
21
40
top view
40-pin DIP
Pin Configurations
HV518
40 Pin Dual-In-Line Package
Pin
Function
Pin
Function
1
V
PP
21
Clock
2
Serial Out
22
LE
3
HV
OUT
32
23
HV
OUT
16
4
HV
OUT
31
24
HV
OUT
15
5
HV
OUT
30
25
HV
OUT
14
6
HV
OUT
29
26
HV
OUT
13
7
HV
OUT
28
27
HV
OUT
12
8
HV
OUT
27
28
HV
OUT
11
9
HV
OUT
26
29
HV
OUT
10
10
HV
OUT
25
30
HV
OUT
9
11
HV
OUT
24
31
HV
OUT
8
12
HV
OUT
23
32
HV
OUT
7
13
HV
OUT
22
33
HV
OUT
6
14
HV
OUT
21
34
HV
OUT
5
15
HV
OUT
20
35
HV
OUT
4
16
HV
OUT
19
36
HV
OUT
3
17
HV
OUT
18
37
HV
OUT
2
18
HV
OUT
17
38
HV
OUT
1
19
Strobe
39
Data In
20
GND
40
V
DD
HV518
44 Pin J-Lead Package
Pin
Function
Pin
Function
1
V
PP
23
Clock
2
Serial Out
24
LE
3
HV
OUT
32
25
HV
OUT
16
4
HV
OUT
31
26
HV
OUT
15
5
HV
OUT
30
27
HV
OUT
14
6
N/C
28
N/C
7
HV
OUT
29
29
N/C
8
HV
OUT
28
30
HV
OUT
13
9
HV
OUT
27
31
HV
OUT
12
10
HV
OUT
26
32
HV
OUT
11
11
HV
OUT
25
33
HV
OUT
10
12
HV
OUT
24
34
HV
OUT
9
13
HV
OUT
23
35
HV
OUT
8
14
HV
OUT
22
36
HV
OUT
7
15
HV
OUT
21
37
HV
OUT
6
16
HV
OUT
20
38
HV
OUT
5
17
HV
OUT
19
39
HV
OUT
4
18
N/C
40
HV
OUT
3
19
HV
OUT
18
41
HV
OUT
2
20
HV
OUT
17
42
HV
OUT
1
21
Strobe
43
Data In
22
GND
44
V
DD
Package Outline
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