Supertex inc.
20-Channel, Serial-Input, Vacuum-Fluorescent
Display Driver for Anode/Grid
Features
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HVCMOS
®
technology for high performance
Operating voltage up to 80V
High speed source driver
5.0V CMOS logic circuitry
Up to 5.0MHz data input rate
Excellent noise immunity
Flexible high voltage supplies
HV5812
General Description
The Supertex HV5812 is a 20-channel, serial input, vacuum-
fluorescent display driver. It combines a 20-bit CMOS shift
register, data latches, and control circuitry with high voltage
MOSFET outputs. The HV5812 is primarily designed for vac-
uum-fluorescent displays.
The CMOS shift register and latches allow direct interfacing
with microprocessor based systems. Data input rates are typi-
cally over 5.0MHz with 5.0V logic supply. Especially useful
for interdigit blanking, the BLANKING input disables the out-
put source drives and turns on the sink drivers. Use with TTL
may require external pull-up resistors to ensure an input logic
high.
Functional Block Diagram
BL
STROBE
VDD
VPP
HV
OUT
1
HV
OUT
2
DATA IN
CLK
DATA OUT
GND
20-bit
Shift
Register
20-bit
Latch
HV
OUT
3
HV
OUT
20
Supertex inc.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
HV5812
Ordering Information
28-Lead PDIP (.600in row spacing)
Device
HV5812
1.565x.580in body
.250in height (max)
.100in pitch
..453x.453in
body
.180in height (max)
.050in pitch
28-Lead PLCC
.17.90x7.50mm
body
2.65mm height (max)
1.27mm pitch
28-Lead SOW
HV5812P-G
HV5812PJ-G
HV5812WG-G
-G indicates package is RoHS compliant (‘Green’)
Pin Configurations
1
28
1
28
Absolute Maximum Ratings
Parameter
Supply voltage, V
DD
Supply voltage, V
PP
Logic input levels
Maximum junction temperature
Storage temperature range
Power dissipation:
28-Lead PDIP (P)
28-Lead PLCC (PJ)
28-Lead SOW (WG)
Value
-0.5V to +7.5V
-0.5V to +90V
-0.3V to V
DD
+0.3V
125°C
-55°C to +150°C
2000mW
1900mW
1700mW
28-Lead PLCC (PJ)
28-Lead PDIP (P)
4
1 28
28-Lead SOW (WG)
26
Product Marking
Top Marking
HV5812P
YYWW
LLLLLLLLLL
Absolute Maximum Ratings are those values beyond which damage to the
device may occur. Functional operation under these conditions is not implied.
Continuous operation of the device at the absolute rating level may affect
device reliability. All voltages are referenced to GND.
Bottom Marking
CCCCCCCCCCC
AAA
YY = Year Sealed
WW = Week Sealed
L = Lot Number
C = Country of Origin*
A = Assembler ID*
= “Green” Packaging
*May be part of top marking
Recommended Operating Conditions
Sym
V
DD
V
PP
T
j
Parameter
Supply voltage
Supply voltage
Operating junction temperature
Min
4.5
20
-40
Max
5.5
80
+125
Units
V
V
°C
Package may or may not include the following marks: Si or
28-Lead PDIP (P)
Top Marking
Power-up sequence should be the following:
1. Connect ground.
2. Apply V
DD
.
3. Set all inputs (Data, CLK, etc.) to a known state.
4. Apply V
PP
.
The V
PP
should not drop below V
DD
during operation.
Power-down sequence should be the reverse of the above.
YY = Year Sealed
WW = Week Sealed
HV5812PJ
LLLLLLLLLL
L = Lot Number
A = Assembler ID
Bottom Marking
C = Country of Origin*
= “Green” Packaging
YYWW AAA
CCCCCCCCCCC
*May be part of top marking
Package may or may not include the following marks: Si or
28-Lead PLCC (PJ)
Top Marking
HV 5 812 W G
LLLLLLLLLL
Y Y WW A A A
Bottom Marking
CCCCCCCCCCC
YY = Year Sealed
WW = Week Sealed
A = Assembler ID
L = Lot Number
C = Country of Origin*
= “Green” Packaging
*May be part of top marking
Package may or may not include the following marks: Si or
28-Lead SOW (WG)
Supertex inc.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
2
HV5812
Electrical Characteristics
Sym
I
DSS
V
OH
Parameter
Output leakage current
High-level output
HV
OUT
DATA OUT
V
OL
I
SINK
V
IH
V
IL
I
IH
I
IL
I
DDQ
I
PPQ
Low-level output
HV
OUT
DATA OUT
Output pull-down current
High level logic input voltage
Low level logic input voltage
High level logic input current
Low level logic input current
Quiescent V
DD
supply current
Quiescent V
PP
supply current
DC Characteristics
(over recommended operating conditions, T
Min
-
78
77
4.5
-
-
-
2.0
3.5
-0.3
-
-
-
-
-
-
A
= 25
O
C, unless otherwise noted)
Typ
-5.0
78.5
78
4.7
1.5
2.3
200
3.5
-
-
0.05
-0.05
100
100
10
10
A
Max
-15
-
-
-
3.0
4.0
250
-
5.3
0.8
0.5
-0.5
300
300
100
100
Units
µA
V
V
V
V
mA
V
V
µA
µA
µA
µA
Conditions
V
OUT
= 0V, T
A
= +70°C
I
OUT
= -25mA, V
PP
= 80V, T
j
= +25°C
I
OUT
= -25mA, V
PP
= 80V, T
j
= +125°C
I
OUT
= -200µA, V
DD
= 5.0V
I
OUT
= 1.0mA, T
j
= +25°C, V
DD
= 5.0V
I
OUT
= 1.0mA, T
j
= +125°C, V
DD
= 5.0V
I
OUT
= +200µA, V
DD
= 5.0V
V
OUT
= 5.0V to V
PP
, V
DD
= 5.0V
V
DD
= 5.0V
---
V
IN
= V
DD
, V
DD
= 5.0V
V
IN
= 0.8V, V
DD
= 5.0V
All outputs high, V
DD
= 5.0V
All outputs low, V
DD
= 5.0V
All outputs high, no load
All outputs low, no load
AC Characteristics
(over recommended operating conditions, T
t
PHL
t
PLH
t
f
t
r
t
su
t
h
t
pwd
t
pwclk
t
cks
t
pws
t
sto
f
CLK
Blanking to output delay
Output fall time
Output rise time
Data set-up time
Data hold time
Minimum data pulse width
Minimum clock pulse width
Minimum time between clock activa-
tion and strobe
Minimum strobe pulse width
Typical time between strobe activa-
tion and output transition
Maximum clock frequency
-
-
-
-
75
75
150
150
300
100
-
-
-
= 25
O
C, unless otherwise noted)
2000
1000
1450
650
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
C
L
= 30pF, 50% to 50%, V
DD
= 5.0V
C
L
= 30pF, 90% to 10%, V
DD
= 5.0V
C
L
= 30pF, 10% to 90%, V
DD
= 5.0V
See timing diagram
See timing diagram
See timing diagram
See timing diagram
See timing diagram
See timing diagram
See timing diagram
T
j
= +25°C, V
DD
= 5.0V
T
j
= +125°C, V
DD
= 5.0V
500
8.0
5.0
-
-
-
Supertex inc.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
3
HV5812
Function Table
Serial
Data
Input
H
L
X
-
-
-
Note:
L =
H =
X =
P =
R =
Clock
Input
L to H
L to H
H to L
-
-
-
Shift Register Contents
I
1
H
L
R
1
X
P
1
-
I
2
R
1
R
1
R
2
X
P
2
-
I
3
... I
N-1
R
2
... R
N-2
R
2
... R
N-2
R
3
... R
N-1
X ... X
P
3
... P
N-1
-
I
N
R
N-1
R
N-1
R
N
X
P
N
-
Serial
Data
Output
R
N-1
R
N-1
R
N
X
P
N
-
Strobe
Input
-
-
-
L
H
-
Latch Content
I
1
-
-
-
R
1
P
1
X
I
2
-
-
-
R
2
P
2
X
I
3
... I
N-1
-
-
-
R
3
... R
N-1
P
3
... P
N-1
X ... X
I
N
-
-
-
R
N
P
N
X
Blanking
-
-
-
-
L
H
Output Content
I
1
-
-
-
-
P
1
L
I
2
-
-
-
-
P
2
L
I
3
... I
N-1
-
-
-
-
P
3
... P
N-1
L ... L
I
N
-
-
-
-
P
N
L
Low logic level
High logic level
Irrelevant
Present state
Previous state
Timing Diagram
CLK
t
PWCLK
50%
50%
V
IH
V
IL
DATA IN
t
SU
50%
t
PWD
t
h
50%
V
IH
t
PWS
V
IL
50%
STROBE
BL
t
CKS
50%
V
IH
V
IL
V
IH
t
PLH
50%
50%
50%
HV
OUT
t
STO
10%
t
PHL
90%
V
IL
V
OH
V
OL
90%
50%
10%
t
r
t
f
Input and Output Equivalent Circuits
VDD
VDD
VPP
L/T
Input
Data Out
HV
OUT
GND
Logic Inputs
GND
Logic Data Output
GND
High Voltage Outputs
Supertex inc.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
4
HV5812
28-Lead PDIP Pin Assignment (P)
Pin #
1
2
3
4
5
6
7
8
9
10
Function
VPP
Data Out
HV
OUT
20
HV
OUT
19
HV
OUT
18
HV
OUT
17
HV
OUT
16
HV
OUT
15
HV
OUT
14
HV
OUT
13
Pin #
11
12
13
14
15
16
17
18
19
20
Function
HV
OUT
12
HV
OUT
11
BLANKING
GND
CLOCK
STROBE
HV
OUT
10
HV
OUT
9
HV
OUT
8
HV
OUT
7
Pin #
21
22
23
24
25
26
27
28
Function
HV
OUT
6
HV
OUT
5
HV
OUT
4
HV
OUT
3
HV
OUT
2
HV
OUT
1
Data In
VDD
28-Lead PLCC Pin Assignment (PJ)
Pin #
1
2
3
4
5
6
7
8
9
10
Function
VPP
Data Out
HV
OUT
20
HV
OUT
19
HV
OUT
18
HV
OUT
17
HV
OUT
16
HV
OUT
15
HV
OUT
14
HV
OUT
13
Pin #
11
12
13
14
15
16
17
18
19
20
Function
HV
OUT
12
HV
OUT
11
BLANKING
GND
CLOCK
STROBE
HV
OUT
10
HV
OUT
9
HV
OUT
8
HV
OUT
7
Pin #
21
22
23
24
25
26
27
28
Function
HV
OUT
6
HV
OUT
5
HV
OUT
4
HV
OUT
3
HV
OUT
2
HV
OUT
1
Data In
VDD
28-Lead SOW Pin Assignment (WG)
Pin #
1
2
3
4
5
6
7
8
9
10
Function
VPP
Data Out
HV
OUT
20
HV
OUT
19
HV
OUT
18
HV
OUT
17
HV
OUT
16
HV
OUT
15
HV
OUT
14
HV
OUT
13
Pin #
11
12
13
14
15
16
17
18
19
20
Function
HV
OUT
12
HV
OUT
11
BLANKING
GND
CLOCK
STROBE
HV
OUT
10
HV
OUT
9
HV
OUT
8
HV
OUT
7
Pin #
21
22
23
24
25
26
27
28
Function
HV
OUT
6
HV
OUT
5
HV
OUT
4
HV
OUT
3
HV
OUT
2
HV
OUT
1
Data In
VDD
Supertex inc.
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
●
Tel: 408-222-8888
●
www.supertex.com
5
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