5910
HIGH-VOLTAGE BiMOS III
10-BIT SERIAL-INPUT, LATCHED DRIVERS
OUT
8
OUT
7
OUT
6
CLOCK
LOGIC
GROUND
LOGIC
SUPPLY
STROBE
POWER
GROUND
OUT
5
OUT
4
1
2
3
4
5
6
7
8
9
20
19
OUT
9
OUT
10
Note that the dual in-line package (designator
‘A’) and small-outline IC package (designator
‘LW’) are electrically identical and share a
common terminal number assignment.
ABSOLUTE MAXIMUM RATINGS
at T
A
= 25
°
C
Logic Supply Voltage, V
DD
................
15 V
Driver Supply Voltage, V
BB
UCN5910A/LW .........................
150 V
Suffix “-2” ..................................
140 V
Continuous Output Current Range,
I
OUT
.......................
-30 mA to +40 mA
Input Voltage Range,
V
IN
....................
-0.3 V to V
DD
+ 0.3 V
Package Power Dissipation, P
D
.
See Graph
Operating Temperature Range,
T
A
...............................
-20
°
C to +85
°
C
Storage Temperature Range,
T
S
..............................
-55
°
C to +150
°
C
Caution: CMOS devices have input static
protection but are susceptible to damage when
exposed to extremely high static electrical
charges.
T
C
U Y
D L
O N
R O
P E
D C
E N
U E
IN ER
T F
N E
O R
C R
IS O
D F
—
V
BB
18
17
16
LATCHES
LOAD
SUPPLY (6-10)
SERIAL
DATA OUT
SERIAL
DATA IN
CLK
REGISTER
REGISTER
LATCHES
SUB
The UCN5910x combines a 10-bit CMOS shift register and accompanying
data latches, control circuitry, high-voltage bipolar sourcing outputs with
DMOS active pull-downs. Designed primarily to drive ink-jet and piezoelec-
tric printers, large flat-panel vacuum-fluorescent or ac plasma displays, the
140 V or 150 V and
±50
mA output ratings also allow these devices to be used
in many other peripheral power driver applications. The lower-cost (suffix
“-2”) devices are identical to the basic devices except for output voltage rating.
The CMOS shift register and latches allow direct interfacing with micro-
processor-based systems. With a 5 V logic supply, serial-data input rates are
typically over 5 MHz, with significantly higher speeds obtainable at 12 V.
Use with TTL may require appropriate pull-up resistors to ensure an input logic
high.
A CMOS serial data output enables cascade connections in applications
requiring additional drive lines. Similar devices for up to 60-volt operation are
available in 10, 12, 20, and 32-bit configurations.
The UCN5910A/LW output source drivers are npn Darlingtons capable of
sourcing at least 40 mA. The DMOS active pull-downs are capable of sinking
at least 30 mA. For inter-digit blanking, all of the output drivers can be
disabled and the DMOS sink drivers turned ON by the BLANKING input high.
The UCN5910A and UCN5910A-2 are furnished in a 20-pin dual in-line
plastic package. The surface-mount UCN5910LW and UCN5910LW-2 are
furnished in a wide-body, small-outline plastic package (SOIC) with gull-wing
leads. Copper lead frames, reduced supply current requirements, and lower
output saturation voltages allow all devices to be operated at
±20
mA from all
outputs (50% duty cycle), at ambient temperatures up to +30°C, or at
±15
mA
to +55°C.
Data Sheet
26182.2A
V
DD
ST
BLNK
15
V
BB
14
13
BLANKING
LOAD
SUPPLY (1-5)
OUT
1
OUT
2
OUT
3
12
10
11
Dwg. PP-029-14
FEATURES
s
High-Speed Source Drivers
s
140 V (suffix “-2”) or 150 V
Minimum Output Breakdown
s
Improved Replacements
for TL4810B
s
s
s
s
Low Output Saturation Voltages
Low-Power CMOS Logic and Latches
To 3.3 MHz Data Input Rate
Active DMOS Pull-Downs
PRELIMINARY INFORMATION
(Subject to change without notice)
January 18, 2000
Always order by complete part number, e.g.,
UCN5910A-2
.
5910
HIGH-VOLTAGE BiMOS III
10-BIT SERIAL-INPUT,
LATCHED DRIVERS
CLOCK
DATA IN
C
STROBE
BLANKING
G
OUT
N
Dwg. No. A-12,649A
A
B
D
E
F
Serial Data present at the input is transferred
to the shift register on the logic “0” to logic “1”
transition of the CLOCK input pulse. On
succeeding CLOCK pulses, the registers shift data
information towards the SERIAL DATA OUT-
PUT. The SERIAL DATA must appear at the
input prior to the rising edge of the CLOCK input
waveform.
Information present at any register is trans-
ferred to the respective latch when the STROBE
is high (serial-to-parallel conversion). The
latches will continue to accept new data as long as
the STROBE is held high. Applications where
the latches are bypassed (STROBE tied high) will
require that the BLANKING input be high during
serial data entry.
When the BLANKING input is high, the
output source drivers are disabled (OFF); the
DMOS sink drivers are ON. The information
stored in the latches is not affected by the
BLANKING input. With the BLANKING input
low, the outputs are controlled by the state of
their respective latches.
(T
A
= +25
°
C, V
DD
= 12 V, Logic Levels are V
DD
and Ground)
A.
Minimum Data Active Time Before Clock Pulse
(Data Set-Up Time) ...........................................................................
75 ns
B.
Minimum Data Active Time After Clock Pulse
(Data Hold Time) ...............................................................................
75 ns
C.
Minimum Data Pulse Width .............................................................
150 ns
D.
Minimum Clock Pulse Width ...........................................................
100 ns
E.
F.
Minimum Time Between Clock Activation and Strobe ....................
300 ns
Minimum Strobe Pulse Width ..........................................................
100 ns
TIMING CONDITIONS
G.
Typical Time Between Strobe Activation and
Output Transition .............................................................................
750 ns
TRUTH TABLE
Serial
Shift Register Contents
Data Clock
Input Input I
1
I
2
I
3
... I
N-1
I
N
H
L
X
H
L
R
1
R
2
...
R
1
R
2
...
R
N-2
R
N-1
R
N-2
R
N-1
R
N-1
R
N
X
X
Serial
Data Strobe
Output Input
R
N-1
R
N-1
R
N
X
P
N
L
H
R
1
R
2
R
3
...
P
1
P
2
P
3
...
X
L = Low Logic Level
H = High Logic Level
X = Irrelevant
X
X
...
R
N-1
R
N
P
N-1
P
N
X
X
L
H
P
1
P
2
P
3
... P
N-1
P
N
L
L
L
... L
L
Latch Contents
I
1
I
2
I
3
...
I
N-1
I
N
Blanking
Output Contents
I
1
I
2
I
3
... I
N-1
I
N
R
1
R
2
R
3
...
X
X
X
...
P
1
P
2
P
3
...
P
N-1
P
N
P = Present State
R = Previous State
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Worcester, Massachusetts 01615-0036 (508) 853-5000
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