common terminal number assignment.
................
UCN5910A/LW .........................
Suffix 鈥?2鈥?..................................
.......................
....................
.
...............................
..............................
charges.
鈥?/div>
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
鹵50
mA output ratings also allow these devices to be used
in many other peripheral power driver applications. The lower-cost (suffix
鈥?2鈥? 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
鹵20
mA from all
outputs (50% duty cycle), at ambient temperatures up to +30擄C, or at
鹵15
mA
to +55擄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 鈥?2鈥? 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
.
ALLEGRO
1
2
3
4
5
6
7
8
