UDN2993B Allegro Micro Systems, Inc., UDN2993B Datasheet

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UDN2993B

Manufacturer Part Number
UDN2993B
Description
Dual h-bridge motor drivers
Manufacturer
Allegro Micro Systems, Inc.
Datasheet

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2993
DUAL H-BRIDGE
MOTOR DRIVERS
Load Supply Voltage, V
Logic Supply Voltage, V
Logic Input Voltage Range, V
Output Current, I
Sink Driver Emitter Voltage,
Package Power Dissipation,
Operating Temperature Range,
Storage Temperature Range,
IMPORTANT: Load supply voltage must never be
applied without logic supply voltage present.
NOTE: Output current rating may be limited by
chopping frequency, ambient temperature,
airflow, and heat sinking. Under any set of
conditions, do not exceed the specified maximum
current and a junction temperature of +150 C.
LOAD SUPPLY
ABSOLUTE MAXIMUM RATINGS
GROUND
ENABLE
GROUND
PHASE
V
V
P
T
T
OUT
OUT
A
S
ENABLE
E
D
V
.................................................. 1.5 V
........................................ See Graph
................................. -20 C to +85 C
............................... -55 C to +150 C
EA
1A
2A
A
A
1
2
3
4
5
6
7
8
............... -0.3 V to V
UDN2993B
at T
V
BB
OUT
J
.....................
+150 C
BB
DD
.................... 30 V
................... 7.0 V
V
DD
PHASE
Dwg. No. A-12,455
16
15
14
13
12
11
10
9
DD
LOGIC SUPPLY
ENABLE
PHASE
GROUND
GROUND
OUT
OUT
V
or
EB
600 mA
+ 0.3 V
1B
2B
B
B
DUAL H-BRIDGE MOTOR DRIVERS
2993
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.
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).
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.
supplied as the UDN2998W.
FEATURES
Always order by complete part number:
Part Number
UDN2993B
UDN2993LB
Output Voltage to 30 V
Crossover Current Protection
TTL/NMOS/CMOS Compatible Inputs
Low Input Current
Internal Clamp Diodes
Automotive Capable
Cost-effective monolithic drive electronics for bipolar stepper and
Excepting the power supply connections, the two H-bridges are
These devices are packaged in plastic DIPs (suffix B) or surface-
Dual full-bridge drivers with peak current ratings of 3 A are
600 mA Output Current
16-Pin DIP
Package
20-Lead Wide-Body SOIC

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UDN2993B Summary of contents

Page 1

... Cost-effective monolithic drive electronics for bipolar stepper and dc (brush) servo motors 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 ...

Page 2

DUAL H-BRIDGE MOTOR DRIVERS UDN2993LB LOAD LOGIC SUPPLY SUPPLY ENABLE LOGIC LOGIC PHASE 3 18 PHASE A GROUND 4 GROUND 17 GROUND 5 16 GROUND GROUND 6 GROUND 15 GROUND ...

Page 3

DUAL H-BRIDGE MOTOR DRIVERS ELECTRICAL CHARACTERISTICS at T Figure 1 (unless otherwise noted). Characteristic Output Drivers Operating Voltage Range Output Leakage Current Output Saturation Voltage Output Sustaining Voltage Motor Supply Current Source Driver Rise Time Source Driver Fall Time ...

Page 4

DUAL H-BRIDGE MOTOR DRIVERS TEST FIGURES FIGURE ENABLE OUT 1 PHASE TURN-ON DELAY GROUND FIGURE 2.4V 0.8V ENABLE PHASE TURN-ON DELAY GROUND = 40V OUT mA ...

Page 5

... 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. UDN2993B Dimensions in Inches 9 NOTE 4 8 0.100 0.005 ...

Page 6

DUAL H-BRIDGE MOTOR DRIVERS 20 0.2992 0.2914 0.020 1 0.013 0.0926 0.1043 0.0040 20 7.60 7.40 0.51 1 0.33 2.65 2.35 0.10 NOTES: 1. Webbed lead frame. Leads 5, 6, 15, and 16 are internally one piece. 2. Lead ...

Page 7

DUAL H-BRIDGE MOTOR DRIVERS This page intentionally left blank ...

Page 8

DUAL H-BRIDGE MOTOR DRIVERS Function INTEGRATED CIRCUITS FOR BRUSHLESS DC MOTORS 3-Phase Controller/Drivers Hall-Effect Latched Sensors 2-Phase Hall-Effect Sensor/Controller Hall-Effect Complementary Output Sensor 2-Phase Hall-Effect Sensor/Driver 2-Phase Hall-Effect Sensor/Driver Hall-Effect Comp. Output Sensor/Driver 3-Phase Back-EMF Controller/Driver 3-Phase Controller/DMOS Driver ...

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