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PDF 2993 Data sheet ( Hoja de datos )
| Número de pieza | 2993 | |
| Descripción | DUAL H-BRIDGE MOTOR DRIVERS | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 2993 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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2993
DUAL H-BRIDGE
MOTOR DRIVERS
2993
DUAL H-BRIDGE MOTOR DRIVERS
Cost-effective monolithic drive electronics for bipolar stepper and
UDN2993B
LOAD SUPPLY 1 VBB
TENABLEA 2
CPHASEA 3
UGROUND 4
YGROUND 5
D LOUT1A 6
O NOUT2A 7
PR OVEA 8
VDD 16 LOGIC SUPPLY
15 ENABLE B
14 PHASE B
13 GROUND
12 GROUND
11 OUT1B
10 OUT2B
9 VEB
Dwg. No. A-12,455
UED ENCEABSOLUTE MAXIMUM RATINGS
IN Rat TJ ≤ +150°C
T ELoad Supply Voltage, VBB .................... 30 V
Logic Supply Voltage, VDD ................... 7.0 V
FLogic Input Voltage Range, VPHASE or
NVENABLE ............... -0.3 V to VDD + 0.3 V
EOutput Current, IOUT ..................... ±600 mA
O RSink Driver Emitter Voltage,
VE .................................................. 1.5 V
CPackage Power Dissipation,
S RPD ........................................ See Graph
IOperating Temperature Range,
OTA ................................. -20°C to +85°C
D FStorage Temperature Range,
TS ............................... -55°C to +150°C
IMPORTANT: Load supply voltage must never be
—applied without logic supply voltage present.
dc (brush) servo motors to 30 V and 500 mA is very practical with the
UDN2993B and UDN2993LB. These dual full-bridge motion control
ICs integrate separate inputs, level shifting for upper power outputs,
control logic, integral inductive transient protection, and source (upper)
and sink (lower) drivers in an H-bridge configuration. The single-chip
power IC provides improved space utilization and reliability unmatched
by discrete component circuitry.
Excepting the power supply connections, the two H-bridges are
independent. An ENABLE input is provided for each bridge and
permits pulse-width modulation (PWM) through the use of external
circuitry. PWM drive techniques provide the benefits of reduced power
dissipation, improved motor performance (especially torque), and
positively affect system efficiency. Separate PHASE inputs for each
bridge determine the direction of current flow in the load. Additionally,
each pair of (sink) emitters are terminated to package connections.
This allows the use of current-sensing circuitry. Both devices
incorporate an intrinsic “dead time” to preclude high crossover
(or cross-conduction) currents during changes in direction (phase).
These devices are packaged in plastic DIPs (suffix B) or surface-
mountable wide-body SOICs (suffix LB) with copper lead frames for
optimum power dissipation without heat sinks. The lead configurations
allow automatic insertion, fit standard IC sockets or printed wiring
board layouts, and enable easy attachment of a heat sink for maximum
power-handling capability. The heat-sink tabs are at ground potential
and require no insulation.
Dual full-bridge drivers with peak current ratings of ±3 A are
supplied as the UDN2998W.
FEATURES
s ±600 mA Output Current
s Output Voltage to 30 V
s Crossover Current Protection
s TTL/NMOS/CMOS Compatible Inputs
s Low Input Current
s Internal Clamp Diodes
s Automotive Capable
NOTE: Output current rating may be limited by
Always order by complete part number:
chopping frequency, ambient temperature,
airflow, and heat sinking. Under any set of
Part Number Package
conditions, do not exceed the specified maximum
current and a junction temperature of +150°C.
UDN2993B
16-Pin DIP
UDN2993LB 20-Lead Wide-Body SOIC
1 page  
2993
DUAL H-BRIDGE
MOTOR DRIVERS
16
0.280
0.240
1
0.070
0.045
0.210
MAX
0.015
MIN
0.022
0.014
16
7.11
6.10
1
1.77
1.15
5.33
MAX
0.39
MIN
0.558
0.356
UDN2993B
Dimensions in Inches
NOTE 4
9
0.020
0.008
0.430
MAX
0.300
BSC
0.775
0.735
0.100
BSC
8
0.005
MIN
0.150
0.115
Dimensions in Millimeters
(Based on 1” = 25.4 mm)
NOTE 4
9
19.68
18.67
2.54
BSC
8
0.13
MIN
Dwg. MA-001-17A in
0.508
0.204
10.92
MAX
7.62
BSC
3.81
2.93
Dwg. MA-001-17A mm
NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown.
2. Lead spacing tolerance is non-cumulative
3. Lead thickness is measured at seating plane or below.
4. Webbed lead frame. Leads 4, 5, 12, and 13 are internally one piece.
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet 2993.PDF ] | |
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