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32-Channel Vacuum-Fluorescent Display Driver
Ordering Information
Package Options
Device 40 Pin Dip 44 Plastic Chip Carrier Die
HV518 HV518P HV518PJ HV518X
HV518
Features
❏ 32 output lines
❏ 90V output swing
❏ Active pull-down
❏ Latches on all outputs
❏ Up to 6MHz @ V
❏ -40°C to +85°C operation
DD
= 5V
Absolute Maximum Ratings
1
DD
PP
1
1
2,3
-0.5V to +6.0V
-0.5V to +90V
-0.5V to VDD +0.5V
1200mW
Supply voltage, V
Supply voltage, V
Logic input levels
Continuous total power dissipation
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.
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.
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Electrical Characteristics
(over recommended ranges of operating free-air temperature and VDD. Unless otherwise noted, V
Symbol Parameter Min Typ Max Units Conditions
I
DD
I
DDQ
I
PP
V
OH
V
OL
I
IH
I
IL
Note: The total number of ON outputs times the duty cycle must not exceed the allowable package power disspation.
Supply current 10 mA VDD = 5V, f
Quiescent supply current 0.5 mA VDD = 5.5V, VIN = 0V
Supply current 12 mA Output high, TA = -40°C
710mAOutput high, T
500 µA Outputs low
High-level output voltage HVoutput 70.0 V IOH= -25mA
Serial output 4.5 4.9 5 V V
Low-level output HVoutput 5 V IOL= 1mA
Serial output 0.06 0.8 V I
High-level logic input current 0.1 1 µAVIH = V
Low-level logic input current -0.1 -1 µAVIL = 0V
DD
OL
= 80V)
PP
= 5V, I
=20µA
DD
CH
OH
= 6.0 MHz
= 0 to +85°C
A
= -20µA
HV518
Switching Characteristics (V
= 80V, CL = 50 pF, TA = 25°C, unless otherwise noted)
PP
Symbol Parameter Min Max Unit Conditions
t
d
Delay time, Clock to data output VDD = 4.5V 600 ns CL =15 pF
See Figure 4
t
DHL
Delay time, high-to-low-level, from latch enable VDD = 4.5V 1.5 µs See Figure 5
HVoutput from strobe 1 See Figure 6
t
DLH
Delay time, low-to-high-level from latch enable VDD = 4.5V 1.5 µs See Figure 5
HVoutput from strobe 1 See Figure 6
t
THL
t
TLH
Recommended Operating Conditions (T
Transition time, high-to-low-level, HVoutput VDD = 4.5V 3 µs See Figure 6
Transition time, low-to-high-level, HVoutput VDD = 4.5V 2.5 µs See Figure 6
= 25°C, unless otherwise noted)
A
Symbol Parameter Min Max Units
V
DD
V
PP
V
IH
V
IL
I
OH
I
OL
f
CLK
t
w(CKH)
t
w(CKL)
t
su
t
h
T
A
Note:
Power-up sequence should be the following:
1. Connect ground. 4. Apply V
2. Apply V
3. Set all inputs (Data, CLK, Enable, etc.) to a known state.
Power-down sequence should be the reverse of the above.
.5.The VPP should not drop below VDD or float during operation.
DD
Logic voltage supply 4.5 5.5 V
High voltage supply 8 80 V
High-level input voltage (See Fig.3.) V
Low-level input voltage (See Fig. 3.) V
= 4.5V 3.5 V
DD
= 4.5V 1 V
DD
High-level output current -25 mA
Low-level output current 2 mA
Clock frequency (see Figure 3) V
Pulse duration , clock high V
Pulse duration , clock low V
Setup time, data before clock V
Hold time, data after clock V
= 4.5V 6.0 MHz
DD
= 4.5V 83 ns
DD
= 4.5V 83 ns
DD
= 4.5V 75 ns
DD
= 4.5V 75 ns
DD
Operating free-air temperature -40 85 °C
.
PP
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Input and Output Equivalent Circuits
HV518
V
DD
V
DD
Input
GND
Logic Inputs
GND
Logic Data Output
Parameter Measurement Information
t
w(CKH)
V
IH
Clock
Data In
50%
t
w(CKL)
V
t
t
su
h
V
V
Latch Enable
IL
IH
IL
HV Output
Data Out
GND
50%
V
PP
90%
10%
High Voltage Outputs
t or t
DLH DHL
HV
V
V
V
V
OUT
IH
IL
OH
OL
Figure 3: Input Timing Voltage Waveforms Figure 5
t
w(CKH)
V
Clock
Data
Output
50%
t
d
50%
IH
V
IL
V
OH
V
OL
Figure 4 Figure 6: Switching-Time Voltage Waveforms
Note: For testing purposes, all input pulses have maximum rise and fall times of 30 nsec.
Strobe
HV Output
t
DLH
V
10%
IH
V
IL
V
OH
V
OL
50%
t
DHL
90%
t
TLH
t
THL
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HV518
Block Diagram
D
IN
32-Bit
Shift
Register
D
CLK
OUT
Truth Tables
Input
Data In CLK Data Out
HH
LL
X No Change *
* Previous state
LE
Latches
STB V
PP
HV 1
OUT
HV 32
OUT
Output
Data In LE STB HV Outputs
XXHAll Low
HHLHigh
LHLLow
XLL *
* Previous state
Typical Operating Sequence
Clock
• • •
Data In
SR Contents
Latch Enable
Latch
Contents
Strobe
PREVIOUSLY STORED DATA NEW DATA VALID
VALID IRRELEVANT
INVALID VALID
HV Output
VALID
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HV518
Pin Configurations
HV518
40 Pin Dual-In-Line Package
Pin Function Pin Function
1V
PP
2 Serial Out 22 LE
3HV
4HV
5HV
6HV
7HV
8HV
9HV
10 HV
11 HV
12 HV
13 HV
14 HV
15 HV
16 HV
17 HV
18 HV
32 23 HV
OUT
31 24 HV
OUT
30 25 HV
OUT
29 26 HV
OUT
28 27 HV
OUT
27 28 HV
OUT
26 29 HV
OUT
25 30 HV
OUT
24 31 HV
OUT
23 32 HV
OUT
22 33 HV
OUT
21 34 HV
OUT
20 35 HV
OUT
19 36 HV
OUT
18 37 HV
OUT
17 38 HV
OUT
19 Strobe 39 Data In
20 GND 40 V
21 Clock
DD
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Package Outline
1
20
top view
40-pin DIP
40
21
HV518
44 Pin J-Lead Package
Pin Function Pin Function
1V
PP
23 Clock
2 Serial Out 24 LE
3HV
4HV
5HV
32 25 HV
OUT
31 26 HV
OUT
30 27 HV
OUT
6 N/C 28 N/C
7HV
8HV
9HV
10 HV
11 HV
12 HV
13 HV
14 HV
15 HV
16 HV
17 HV
29 29 N/C
OUT
28 30 HV
OUT
27 31 HV
OUT
26 32 HV
OUT
25 33 HV
OUT
24 34 HV
OUT
23 35 HV
OUT
22 36 HV
OUT
21 37 HV
OUT
20 38 HV
OUT
19 39 HV
OUT
18 N/C 40 HV
19 HV
20 HV
18 41 HV
OUT
17 42 HV
OUT
21 Strobe 43 Data In
22 GND 44 V
DD
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
39 38 37 36 35 34
40
41
42
43
44
1
2
3
4
5
6
7 8 9 10 11 12
33 32 31 30 29
28
27
26
25
24
23
22
21
20
19
18
13 14 15 16 17
top view
©2001 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
12/13/010
1235 Bordeaux Drive, Sunnyvale, CA 94089
5
TEL: (408) 744-0100 • FAX: (408) 222-4895
www.supertex.com
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