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PDF 5891 Data sheet ( Hoja de datos )

Número de pieza 5891
Descripción (5890 / 5891) LATCHED SOURCE DRIVERS
Fabricantes Allegro MicroSystems 
Logotipo Allegro MicroSystems Logotipo



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GROUND 1
CLOCK
SERIAL
DATA IN
2 CLK
3
SHIFT
REGISTER
STROBE 4 ST LATCHES
16
VDD 15
OE 14
VBB 13
SERIAL
DATA OUT
LOGIC
SUPPLY
OUTPUT
ENABLE
LOAD
SUPPLY
OUT1 5
12 OUT 8
OUT 2 6
11 OUT7
OUT3 7
10 OUT6
OUT 4 8
9 OUT5
Dwg. PP-026-2A
Note the suffix ‘A’ devices (DIP) and the suffix
‘LW’ devices (SOIC) are electrically identical and
share a common terminal number assignment.
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Output Voltage, VOUT
(UCN5890A & UCN5890LW) ......... 80 V
(UCN5891A & UCN5891LW) ......... 50 V
Logic Supply Voltage Range,
VDD .................................... 4.5 V to 15 V
Driver Supply Voltage Range, VBB
(UCN5890A/LW) ................ 20 V to 80 V
(UCN5891A/LW) ............... 5.0 V to 50 V
Input Voltage Range,
VIN ........................ -0.3 V to VDD + 0.3 V
Continuous Output Current,
IOUT ........................................... -500 mA
Allowable Package Power Dissipation,
PD ......................................... See Graph
Operating Temperature Range,
TA .................................. -20°C to +85°C
Storage Temperature Range,
TS ................................ -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.
5890 AND
5891
BIMOS II 8-BIT SERIAL-INPUT,
LATCHED SOURCE DRIVERS
Frequently applied in non-impact printer systems, the UCN5890A,
UCN5890LW, UCN5891A, and UCN5891LW are BiMOS II serial-input,
latched source (high-side) drivers. The octal, high-current smart-power ICs
merge an 8-bit CMOS shift register, associated CMOS latches, and CMOS
control logic (strobe and output enable) with sourcing power Darlington
outputs. Typical applications include multiplexed LED and incandescent
displays, relays, solenoids, and similar peripheral loads to a maximum of
-500 mA per output.
Except for output voltage ratings, these smart high-side driver ICs are
equivalent. The UCN5890A/LW are rated for operation with load supply
voltages of 20 V to 80 V and a minimum output sustaining voltage of 50 V.
The UCN5891A/LW are optimized for operation with supply voltages of 5 V
to 50 V (35 V sustaining).
BiMOS II devices have higher data-input rates than the original BiMOS
circuits. With a 5 V supply, they will operate to at least 3.3 MHz. At 12 V,
higher speeds are possible. The CMOS inputs are compatible with standard
CMOS and NMOS logic levels. TTL circuits may require the use of appropri-
ate pull-up resistors to ensure a proper input-logic high. A CMOS serial data
output, allows cascading these devices in multiple drive-line applications
required by many dot matrix, alphanumeric, and bar graph displays.
Suffix ‘A’ devices are supplied in a standard dual in-line plastic package
with copper lead frame for enhanced package power dissipation characteris-
tics. Suffix ‘LW’ devices are supplied in a standard wide-body SOIC package
for surface-mount applications. Similar driver, featuring reduced output
saturation voltage, are the UCN5895A and A5895SLW. Complementary,
8-bit serial-input, latched sink drivers are the Series UCN5820A.
FEATURES
I 50 V or 80 V Source Outputs
I Output Current to -500 mA
I Output Transient-Suppression Diodes
I To 3.3 MHz Data-lnput Rate
I Low-Power CMOS Logic and Latches
Always order by complete part number, e.g., UCN5891LW .

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5891 pdf
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5890 AND 5891
8-BIT SERIAL-INPUT,
LATCHED SOURCE DRIVERS
TYPICAL APPLICATION
SOLENOID OR RELAY DRIVER
CLOCK
DATA IN
STROBE
+5V +48V
UCN5890A
1 16
2
SHIFT
REGISTER
VDD
15
3 OE 14
4 LATCHES VBB 13
5 12
6 11
7 10
89
DATA OUT
OUTPUT ENABLE
(ACTIVE LOW)
Dwg. No. A-12,548
www.allegromicro.com
The products described here are manufactured under one or more
U.S. patents or U.S. patents pending.
Allegro MicroSystems, Inc. reserves the right to make, from time to
time, such departures from the detail specifications as may be
required to permit improvements in the performance, reliability, or
manufacturability of its products. Before placing an order, the user is
cautioned to verify that the information being relied upon is current.
Allegro products are not authorized for use as critical components
in life-support devices or systems without express written approval.
The information included herein is believed to be accurate and
reliable. However, Allegro MicroSystems, Inc. assumes no responsi-
bility for its use; nor for any infringement of patents or other rights of
third parties which may result from its use.

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