Data Sheet 29318.20A* 3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

Data Sheet 29318.20A* 3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS

Datasheet Thumbnail

Top Searches for this datasheet

3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
Data Sheet 29318.20A*
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
Combining logic power, UDN2936W UDN2936W-120 provide commutation drive three-phase brushless motors. Each three outputs rated peak), include internal ground clamp flyback diodes. These drivers also feature internal commutation logic, current control, thermal shutdown protection. UDN2936W UDN2936W-120 compatible with singleended digital linear Hall effect sensors. commutating logic programmed (UDN2936W) 120° (UDN2936W-120) electrical separation. Current control accomplished sensing current through external sense resistor pulse-width modulating source drivers. Voltage thresholds hysteresis externally user. desired, internal threshold hysteresis defaults (300 percent) used. UDN2936W/W-120 also include braking direction control. Internal protection circuitry prevents crossover current when braking changing direction. Both devices also available operation between -40°C +85°C. order, change prefix from `UDN' `UDQ'. maximum power-handling capability, UDN2936W UDN2936W-120 supplied 12-pin single in-line power-tab packages. external heat sink required high-current applications. ground potential needs insulation. ABSOLUTE MAXIMUM RATINGS +150°C
Supply Voltage, Output Current, IOUT (continuous) ±2.0 (peak) ±3.0 Input Voltage Range, -0.3 Threshold Voltage, VTHS Package Power Dissipation, Graph Operating Temperature Range, -20°C +85°C Storage Temperature Range, -55°C +150°C
Note: Output current rating limited duty cycle, ambient temperature, heat sinking. Under conditions, exceed specified peak current junction temperature +150°C.
FEATURES
Operation Peak Output Current Internal Clamp Diodes Internal Current Control 120° Commutation Decoding Logic Thermal Shutdown Protection Compatible with Single-Ended Differential Hall-Effect Sensors Braking Direction Control
Always order complete part number: Part Number UDN2936W UDN2936W-120 Sensor Inputs Single-Ended, Separation Single-Ended, 120° Separation
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
FUNCTIONAL BLOCK DIAGRAM
Dwg. W-190A
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright 1985, 1993, Allegro MicroSystems, Inc.
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
COMMUTATION TRUTH TABLE
UDN2936W
ALLOWABLE PACKAGE POWER DISSIPATION WATTS
2.0°C/W
Hall Sensor Inputs High High High High High High High High High High High High DIRECTION High High High High High High BRAKE High High High High High High High High High High High High OUTA High High High High
Outputs OUTB High High High High OUTC High High High High
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
High High High High High High
Irrelevant High Impedance
TYPICAL APPLICATION
COMMUTATION TRUTH TABLE
UDN2936W-120
Hall Sensor Inputs High High High High High High High High High High High High High High High High High High DIRECTION High High High High High High BRAKE High High High High High High High High High High High High OUTA High High High High Outputs OUTB High High High High OUTC High High High High
BRAKE
DIR.
0.15
Irrelevant High Impedance
Dwg. EP-033
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
ELECTRICAL CHARACTERISTICS +25°C, +150°C,
Characteristic Supply Voltage Range Supply Current Symbol Test Conditions Operating Outputs Open VBRAKE Thermal Shutdown Temperature Thermal Shutdown Hysteresis Output Drivers Output Leakage Current ICEX VOUT VOUT Output Saturation Voltage VCE(SAT) IOUT IOUT IOUT IOUT Output Sustaining Voltage Clamp Diode Forward Voltage Clamp Diode Leakage Current Output Switching Time VCE(sus) Turn-ON Delay (Resistive Load) Turn-OFF Delay (Resistive Load) toff IOUT IOUT Resistive Load IOUT Resistive Load Source Drivers, Sink Drivers, Source Drivers, Sink Drivers, 1.25 Min. Typ. Limits Max. Units
Continued next page.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
ELECTRICAL CHARACTERISTICS +25°C, +150°C, continued
Characteristic Control Logic Logic lnput Voltage VIN(1) VIN(0) Sensor lnput Voltage Threshold Input Current IIN(1) VDIR VBRAKE VDIR VBRAKE VDIR VBRAKE IIN(0) VDIR VBRAKE ITHS VTHS VTHS VSENSE VTHS/10.5 VTHS VSENSE VTHS Current Limit Threshold Default Sense Trip Voltage Default Hysteresis Deadtime VSENSE VTHS VSENSE trip point, VTHS VTHS VTHS BRAKE DIRECTION <1.0 -190 -5.0 -0.64 -8.0 -220 -1.0 10.5 Symbol Test Conditions Min. Typ. Limits Max. Units
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
APPLICATIONS INFORMATION
UDN2936W UDN2936W-120 power drivers provide commutation logic power outputs drive three-phase brushless motors. UDN2936W UDN2936W-120 designed interface with single-ended linear digital Hall-effect devices (HEDs). Internal pull-up resistors allow direct with open-collector digital HEDs. inputs have thresholds. commutation logic provides decoding HEDs with (UDN2936W) 120° (UDN2936W-120) electrical separation. step logic sequencing, half-bridge driver sourcing current, driver sinking current, driver high-impedance state (see Truth Table). logic BRAKE turns three sink drivers turns three source drivers, essentially shorting motor windings ground. During braking, back-electromotive force generated motor produces current that dynamically brakes motor. Depending upon rotational velocity motor, this current approach locked rotor current level (which limited only motor winding resistance). During braking, output current-limiting circuitry disabled care should taken ensure that back-EMF generated brake current does exceed maximum rating peak) sink drivers ground clamp diodes. Changing logic level DIRECTION inverts output states, thus reversing direction motor. Changing direction rotating motor produces back-EMF current similar when braking motor. load current should allowed exceed maximum rating peak) drivers. internally generated dead time (td) approximately prevents potentially destructive crossover currents that occur when changing direction braking. Motor current internally controlled pulse-width modulating source drivers with preset hysteresis format. Load current through external sense resistor (RS) constantly monitored. When current reaches trip point (determined external reference voltage internal default), source driver disabled. Current recirculates through ground clamp diode, motor winding, sink driver. internal constantcurrent sink reduces trip point (hysteresis). When decaying current reaches this lower threshold, source driver enabled again cycle repeats. Thresholds hysteresis with external resistors, internal defaults used. With VTHS trip point internally with 7.5% hysteresis. Load current then determined equation: ITRIP With VTHS threshold, hysteresis percentage, peak current with external resistors according equations: threshold voltage (VTHS) VREF /(RH hysteresis percentage VREF load trip current TRIP) VTHS Percentage hysteresis fixed value independent load current. chopping frequency function circuit parameters including load inductance, load resistance, supply voltage, hysteresis, switching speed drivers. UDN2936W UDN2936W-120 outputs rated normal operating currents startup currents (see cautions above regarding braking changing motor direction). Internal power ground-clamp flyback diodes protect outputs from voltage transients that occur when switching inductive loads. devices also feature thermal protection circuitry. junction temperature reaches +165°C, thermal shutdown circuitry turns output drivers. outputs re-enabled when junction cools down approximately +140°C. This protection only intended protect device from failures excessive junction temperature loss heat sinking should imply that output short circuits permitted. with high-power integrated circuits, printed wiring board should utilize heavy ground plane. optimum performance, drivers should soldered directly into board. power supply should decoupled with electrolytic capacitor (>10 close possible device supply (VBB
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
DIRECTION
OUTC
Dwg. WM-002-1
TYPICAL HALL EFFECT SENSOR LOCATIONS
Dwg. W-193
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
Dimensions Inches
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.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
Dimensions Millimeters (Based 25.4
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:
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.
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
This page intentionally left blank
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
This page intentionally left blank
3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS
MOTOR DRIVERS SELECTION GUIDE
Function 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 3-Phase Back-EMF Controller/Driver Current Controlled Dual Full Bridge Current Controlled Dual Full Bridge Current Controlled Dual Full Bridge Current Controlled Dual Full Bridge Dual Full Bridge Driver Current Controlled Full Bridge Current Controlled Full Bridge Current Controlled Dual Full Bridge Current Controlled Dual Full Bridge Unipolar Stepper Motor Quad Driver Unipolar Stepper-Motor Translator/Driver Unipolar Stepper-Motor Quad Driver Unipolar Microstepper-Motor Quad Driver Voice-Coil Motor Driver Voice-Coil Motor Driver Voice-Coil (and spindle) Motor Driver Output Ratings ±2.0 ±900 ±4.0 ±1.0 ±750 ±1.5 ±1.5 ±750 ±2.0 ±2.0 ±1.3 ±800 ±800 1.25 ±500 ±800 ±350 Part Number 2936 2936-120 3175 3177 3235 3275 3625 3626 5275 8902-A 8925 8984 2916 2917 2918 2919 2998 3952 3953 3961 3962 2544 5804 7024 7029 7042 8932-A 8958 8984 INTEGRATED CIRCUITS BRUSHLESS MOTORS
INTEGRATED BRIDGE DRIVERS BIPOLAR STEPPER MOTORS
OTHER INTEGRATED CIRCUIT PMCM MOTOR DRIVERS
Current maximum specified test condition, voltage maximum rating. specification sustaining voltage limits over-current protection voltage limits. Negative current defined coming (sourcing) output. Complete part number includes additional characters indicate operating temperature range package style.
Allegro MicroSystems, Inc. reserves right make, from time time, such departures from detail specifications required permit improvements design products. Components made under military approvals will accordance with approval requirements. information included herein believed accurate reliable. However, Allegro MicroSystems, Inc. assumes responsibility use; infringements patents other rights third parties which result from use.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

Data Sheet 29318.20A* 3-PHASE BRUSHLESS MOTOR CONTROLLER/DRIVERS

Top Searches for this datasheet

Other recent searches