DUAL FULL-BRIDGE MOTOR DRIVER interface between low-level logic s

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DUAL FULL-BRIDGE MOTOR DRIVER interface between low-level logic s

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DUAL FULL-BRIDGE MOTOR DRIVER
interface between low-level logic solenoids, (brush) motors, stepper motors, UDN2998W dual full-bridge driver will operate inductive loads with continuous output currents bridge peak (start-up) currents control inputs compatible with TTL, DTL, CMOS logic. Except common supply voltage thermal shutdown, drivers each package completely independent. external control, Output Enable each bridge circuit provided sink driver emitters pinned connection external current-sensing resistors. chopper drive mode characterized power dissipation levels maximum efficiency. PHASE input each bridge determines load-current direction. Extensive circuit protection provided on-chip. Both groundclamp flyback diodes each bridge provided. thermal shutdown circuit disables load drive chip temperature rating (package power dissipation) exceeded. Internally-generated delays provide crossover-current protection. UDN2998W packaged 12-pin single in-line power-tab package high power capabilities. Driving either bridges full rating requires external heat sink. ground potential needs insulation.
Dwg. W-106
ABSOLUTE MAXIMUM RATINGS +150°C
Supply Voltage, Output Current, IOUT (continuous) (peak) Sink Driver Emitter Voltage, Logic Input Voltage Range, VPHASE VENABLE -0.3 Package Power Dissipation, Graph Operating Temperature Range, -20°C +85°C Storage Temperature Range, -55°C +150°C NOTE: Output current rating limited chopping frequency, ambient temperature, flow, heat sinking. Under conditions, exceed specified current rating junction temperature +150°C.
FEATURES
Peak Output Current Output Voltage Integral Output Suppression Diodes Output Current Sensing TTL/CMOS Compatible Inputs Internal Thermal Shutdown Circuitry Crossover-Current Protected Automotive Capable
Always order complete part number:
UDN2998W
2998 DUAL FULL-BRIDGE MOTOR DRIVER
FUNCTIONAL BLOCK DIAGRAM
(ONE DRIVERS)
Dwg. W-107A
maintain isolation between integrated circuit components provide normal transistor operation, ground must connected most negative point external circuit.
ALLOWABLE PACKAGE POWER DISSIPATION WATTS
2.0°C/W
TRUTH TABLE
ENABLE INPUT High High PHASE INPUT High High OUTPUT High Open OUTPUT High Open
3.0°C/W HEAT SINK 5.0°C/W
12°C/W HEAT SINK 14°C/W
FREE AIR, 38°C/W
TEMPERATURE
Dwg. GP-012B
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright 1985, 2000 Allegro MicroSystems, Inc.
2998 DUAL FULL-BRIDGE MOTOR DRIVER
ELECTRICAL CHARACTERISTICS +25°C, +150°C,
Limits Characteristic Output Drivers Operating Voltage Range Output Leakage Current ICEX VOUT VENABLE Note VOUT VENABLE Note Output Saturation Voltage VCE(SAT) IOUT Sink Driver IOUT Sink Driver IOUT Source Driver IOUT Source Driver Output Sustaining Voltage Source Driver Rise Time Source Driver Fall Time Deadtime Clamp Diode Leakage Current Clamp Diode Forward Voltage Supply Current Control Logic (PHASE ENABLE) Logic lnput Voltage VIN(0) VIN(1) Logic Input Current IIN(0) IIN(1) Turn-On Delay Time Turn-Off Delay Time tpd0 tpd1 VPHASE VENABLE VPHASE VENABLE ENABLE Input Source Drivers ENABLE Input Source Drivers -5.0 <1.0 VCE(sus) IOUT Note IOUT IOUT IOUT VENABLE(1) VENABLE(2) <5.0 <5.0 <-5.0 Symbol Test Conditions Min. Typ. Max. Units
NOTES:1. Each driver tested separately. Test performed with VPHASE then repeated VPHASE Negative current defined coming (sourcing) specified device pin.
www.allegromicro.com
2998 DUAL FULL-BRIDGE MOTOR DRIVER
ENABLE
VPHASE
Dwg. WM-001 Dwg. WM-001
TYPICAL APPLICATION
2-PHASE BIPOLAR STEPPER MOTOR DRIVE (Chopper Mode)
INPUT INPUT
Dwg. A-12,454
Dwg. EP-025
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
2998 DUAL FULL-BRIDGE MOTOR DRIVER
Dimensions Inches
(controlling dimensions)
1.260 1.240 0.020 0.775 0.765 0.245 0.225
0.180
0.055 0.045 0.155 0.145 0.135 0.100
0.140 0.365 0.570 0.540
INDEX AREA
0.290
0.065 0.035
0.030 0.020
0.100
±0.010
0.023 0.018
0.080 0.070
Dwg. MP-007
NOTES:
Lead thickness measured seating plane below. Lead spacing tolerance non-cumulative. Exact body lead configuration vendor's option within limits shown. Lead gauge plane 0.030" below seating plane. Supplied standard sticks/tubes devices.
www.allegromicro.com
2998 DUAL FULL-BRIDGE MOTOR DRIVER
Dimensions Millimeters
(for reference only)
32.00 31.49 0.51 19.69 19.45 6.22 5.71
4.57
1.40 1.14 3.94 3.68 3.43 2.54
3.56 9.27 14.48 13.71
INDEX AREA
7.36
1.65 0.89
0.76 0.51
2.54
±0.254
0.59 0.45
2.03 1.77
Dwg. MP-007
NOTES: products described here manufactured under more U.S. patents U.S. patents pending. Allegro MicroSystems, Inc. reserves right make, from time time, such departures from detail specifications required permit improvements performance, reliability, manufacturability products. Before placing order, user cautioned verify that information being relied upon current. Allegro products authorized critical components life-support devices systems without express written approval. information included herein believed accurate reliable. However, Allegro MicroSystems, Inc. assumes responsibility use; infringement patents other rights third parties which result from use.
Lead thickness measured seating plane below. Lead spacing tolerance non-cumulative. Exact body lead configuration vendor's option within limits shown. Lead gauge plane 0.762 below seating plane. Supplied standard sticks/tubes devices.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

DUAL FULL-BRIDGE MOTOR DRIVER interface between low-level logic s

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