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PDF 5804 Data sheet ( Hoja de datos )
| Número de pieza | 5804 | |
| Descripción | BiMOS II UNIPOLAR STEPPER-MOTOR TRANSLATOR/DRIVER | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 5804 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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5804
BiMOS II UNIPOLAR
STEPPER-MOTOR TRANSLATOR/DRIVER
OUTPUT B 1
KBD 2
OUTPUT D 3
GROUND 4
GROUND 5
OUTPUT C 6
KAC 7
OUTPUTA 8
VDD 16 SUPPLY
OE
15
OUTPUT
ENABLE
14 DIRECTION
LOGIC
13 GROUND
12 GROUND
11 STEP INPUT
10 HALF-STEP
9 ONE-PHASE
Dwg. W-194
Note that the UCN5804B (dual in-line package)
and UCN5804LB (small outline IC package) are
electrically identical and share a common
terminal number assignment.
ABSOLUTE MAXIMUM RATINGS
Output Voltage, VCE ............................... 50 V
Output Sustaining Voltage,
VCE (sus) ............................................ 35 V
Output Sink Current, IOUT .................... 1.5 A
Logic Supply Voltage, VDD .................... 7.0 V
Input Voltage, VIN .................................. 7.0 V
Package Power Dissipation,
PD ......................................... See Graph
Operating Temperature Range,
TA .................................. -20°C to +85°C
Storage Temperature Range,
TS ................................ -55°C to +150°C
Combining low-power CMOS logic with high-current and high-voltage
bipolar outputs, the UCN5804B and UCN5804LB BiMOS II translator/
drivers provide complete control and drive for a four-phase unipolar stepper-
motor with continuous output current ratings to 1.25 A per phase (1.5 A
startup) and 35 V.
The CMOS logic section provides the sequencing logic, DIRECTION
and OUTPUT ENABLE control, and a power-on reset function. Three
stepper-motor drive formats, wave-drive (one-phase), two-phase, and half-
step are externally selectable. The inputs are compatible with standard
CMOS, PMOS, and NMOS circuits. TTL or LSTTL may require the use of
appropriate pull-up resistors to ensure a proper input-logic high.
The wave-drive format consists of energizing one motor phase at a time
in an A-B-C-D (or D-C-B-A) sequence. This excitation mode consumes the
least power and assures positional accuracy regardless of any winding
inbalance in the motor. Two-phase drive energizes two adjacent phases in
each detent position (AB-BC-CD-DA). This sequence mode offers an
improved torque-speed product, greater detent torque, and is less susceptible
to motor resonance. Half-step excitation alternates between the one-phase
and two-phase modes (A-AB-B-BC-C-CD-D-DA), providing an eight-step
sequence.
The bipolar outputs are capable of sinking up to 1.5 A and withstanding
50 V in the off state (sustaining voltages up to 35 V). Ground-clamp and
flyback diodes provide protection against inductive transients. Thermal
protection circuitry disables the outputs when the chip temperature is exces-
sive.
Both devices are rated for operation over the temperature range of -20°C
to +85°C. The UCN5804B is supplied in a 16-pin dual in-line plastic batwing
package with a copper lead frame and heat-sinkable tabs for improved power
dissipation capabilities; the UCN5804LB is supplied in a 16-lead plastic
SOIC batwing package with a copper lead frame and heat-sinkable tabs.
FEATURES
I 1.5 A Maximum Output Current
I 35 V Output Sustaining Voltage
I Wave-Drive, Two-Phase, and Half-Step Drive Formats
I Internal Clamp Diodes
I Output Enable and Direction Control
I Power-On Reset
I Internal Thermal Shutdown Circuitry
Always order by complete part number, e.g., UCN5804B .
1 page  
TYPICAL APPLICATION
L/R Stepper-Motor Drive
5804
BiMOS II UNIPOLAR
STEPPER-MOTOR
TRANSLATOR/DRIVER
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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| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 5804.PDF ] | |
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