DUAL SOLENOID/MOTOR DRIVER -PULSE-WIDTH MODULATED CURRENT CONTROL

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DUAL SOLENOID/MOTOR DRIVER -PULSE-WIDTH MODULATED CURRENT CONTROL

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Using minimize power dissipation maximize load efficiency, UDN2962W dual driver recommended impact printer solenoids stepper motors. comprised source/ sink driver pairs rated continuous operation connected drive independent loads single load fullbridge configuration. Both drivers include output clamp/flyback diodes, input gain level shifting, voltage regulator singlesupply operation, pulse-width modulated output-current control circuitry. Inputs compatible with most TTL, DTL, LSTTL, low-voltage CMOS PMOS logic.
DUAL SOLENOID/MOTOR DRIVER -PULSE-WIDTH MODULATED CURRENT CONTROL
Data Sheet 29319.12A
GROUND SENSE
SINK SOURCE
SOURCE
SINK SENSEB
ABSOLUTE MAXIMUM RATINGS +150°C
Supply Voltage, Peak Output Current, IOUT Input Voltage Range, -0.3 +7.0 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.
LOGIC
LOGIC
peak output current hysteresis each source/sink pair independently. Output current, threshold voltage, hysteresis user's selection external resistors. specified outputcurrent trip level, source driver turns off. internal clamp diode then allows current flow without additional input from power supply. When lower current trip point reached, source driver turns back UDN2962W 12-pin single in-line power-tab package. ground potential needs insulation. highcurrent high-frequency applications, external heat sinking required.
Dwg. D-1001
FEATURES
Peak Output Min. Sustaining Voltage Internal Clamp Diodes TTL/PMOS/CMOS Compatible Inputs High-Speed Chopper
Always order complete part number:
UDN2962W
DUAL SOLENOID/MOTOR DRIVER
FUNCTIONAL BLOCK DIAGRAM
(ONE DRIVERS)
SOURCE
LOAD SINK SENSE
(TYP.0.1
VREF
Dwg. D-1002
ALLOWABLE PACKAGE POWER DISSIPATION WATTS
2.0°C/W
TRUTH TABLE
VSENSE <VTHS >VTHS SOURCE DRIVER SINK DRIVER
3.0°C/W HEAT SINK 5.0°C/W
High
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 1986, 2002 Allegro MicroSystems, Inc.
DUAL SOLENOID/MOTOR DRIVER
ELECTRICAL CHARACTERISTICS +25°C, +150°C, VSENSE (unless otherwise noted).
Characteristic Supply Voltage Range Output Drivers Output Leakage Current ICEX VSOURCE VSINK Output Saturation Voltage VCE(SAT) Source Drivers, ILOAD Source Drivers, ILOAD Sink Drivers, ILOAD Sink Drivers, ILOAD Output Sustaining Voltage Output Current Regulation VCE(sus) IOUT IOUT ±3.0 VTHS VTHS VTHS Clamp Diode Forward Voltage Output Rise Time Output Fall Time Control Logic Logic Input Voltage VIN(1) VIN(0) Logic Input Current IIN(1) IIN(0) ITHS(ON) ITHS(HYS) VTHS /VSENSE Ratio Supply Current (Total Device) Propagation Delay Time (Resistive Load) VTHS VSENSE VTHS /10.5 VSENSE VTHS /9.5, VTHS Trip Point, VTHS Outputs Outputs Open VOUT, Turn VOUT, Turn 100% VSENSE VOUT* Where VSENSE VTHS /9.5 NOTE: Negative current defined coming (sourcing) specified device pin. -2.0 -100 10.5 ILOAD 90%, Resistive Load ILOAD 10%, Resistive Load <-1.0 <1.0 -100 ±5.0 Symbol Operating Test Conditions Min. Limits Typ. Max. Units
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DUAL SOLENOID/MOTOR DRIVER
CIRCUIT DESCRIPTION APPLICATIONS INFORMATION
UDN2962W high-current driver intended free-running, pulse-width modulated solenoid driver. Circuit Description. operation, source sink drivers both turned level input. load current rises with time function load inductance, total circuit resistance, supply voltage sensed external sense resistor (RS). When load current reaches trip point (ITRIP), comparator output goes high turns source driver. actual load current will peak slightly higher than ITRIP because internal logic switching delays. After source driver turned off, load current continues circulate through sink driver internal ground clamp diode. rate current decay function load inductance total circuit resistance. internal constant current sink reduces trip point (hysteresis) until decaying load current reaches lower threshold, when comparator output goes source driver again turned Load current again allowed rise trip point cycle repeats. Maximum load current hysteresis determined user. Determining Maximum Load Current Hysteresis. Trip current (ITRIP) determined function resistance threshold voltage, VTHS: ITRIP VTHS
VSOURCE TRIP =VTHS
Circuit Layout. prevent interaction between channels, each high-level power ground returns (the side sense resistors) must returned independently low-level signal ground (pin circuit common (pin then routed system ground. printed wiring board should utilize heavy ground plane. optimum performance, driver should soldered directly into board. power supply (VCC) should decoupled with electrolytic capacitor close possible
SUPPLY
SYSTEM GROUND
Dwg. OP-001
TYPICAL WAVESHAPES
where VTHS VSENSE Hysteresis percentage determined resistance independent load current: VREF chopping frequency asynchronous function system circuit parameters, including load inductance, supply voltage, hysteresis setting, switching speed driver. Resistance determined VTHS VREF VTHS
LOAD VSINK
VTHS
Dwg. WP-006
Note that VTHS VREF, then
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
DUAL SOLENOID/MOTOR DRIVER
APPLICATIONS INFORMATION RESISTOR VALUE FUNCTION HYSTERESIS
RESISTOR VALUE FUNCTION PEAK LOAD CURRENT
RREF
H=10% H=5%
HYSTERESIS, PERCENT
LOAD CURRENT, IMAX AMPERES
Dwg. A-12,417
Dwg. A-12,416
Dwg. D-1004
DETERMINE HYSTERESIS PEAK CURRENT NOTE: Each drivers includes internal logic delay prevent potentially destructive crossover currents within driver during phase changes. However, never simultaneously enable both inputs fullbridge configurations: destructive short-circuit ground will result.
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DUAL SOLENOID/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
NOTES:
Dwg. MP-007 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.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000
DUAL SOLENOID/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:
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.
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 lifesupport 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.
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DUAL SOLENOID/MOTOR DRIVER
MOTOR DRIVERS
Output Ratings* Part Number INTEGRATED CIRCUITS BRUSHLESS MOTORS 3-Phase Power MOSFET Controller 3933 3-Phase Power MOSFET Controller 3932 3-Phase Back-EMF Controller/Driver ±900 8902-A 3-Phase Controller/Driver ±2.0 2936-120 INTEGRATED BRIDGE DRIVERS BIPOLAR STEPPER MOTORS Dual Full Bridge with Protection Diagnostics ±500 3976 Current-Controlled Dual Full Bridge ±650 3966 Current-Controlled Dual Full Bridge ±650 3968 Current-Controlled Dual Full Bridge ±750 2916 Current-Controlled Dual Full Bridge ±750 2919 Current-Controlled Dual Full Bridge ±750 6219 Current-Controlled Dual Full Bridge ±800 3964 Current-Controlled Dual DMOS Full Bridge ±1.0 3973 Current-Controlled Full Bridge ±1.3 3953 Current-Controlled Dual Full Bridge ±1.5 2917 Current-Controlled DMOS Full Bridge ±1.5 3948 Current-Controlled Microstepping Full Bridge ±1.5 3955 Current-Controlled Microstepping Full Bridge ±1.5 3957 Current-Controlled Dual DMOS Full Bridge ±1.5 3972 Current-Controlled Dual DMOS Full Bridge ±1.5 3974 Dual Full-Bridge ±2.0 2998 Full-Bridge ±2.0 3951 Current-Controlled Full Bridge ±2.0 3952 Current-Controlled DMOS Full Bridge ±2.0 3958 Microstepping Translator/Dual DMOS Full Bridge ±2.5 3977 Dual DMOS Full Bridge ±2.5 3971 Current-Controlled DMOS Full Bridge ±3.0 3959 UNIPOLAR STEPPER MOTOR OTHER DRIVERS Unipolar Stepper-Motor Quad Drivers 7024 7029 Unipolar Microstepper-Motor Quad Driver 7042 Unipolar Stepper-Motor Translator/Driver 1.25 5804 Unipolar Stepper-Motor Quad Driver 2540 Unipolar Stepper-Motor Quad Driver 7026 Unipolar Microstepper-Motor Quad Driver 7044 Function 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. Also, 3175, 3177, 3235, 3275 Hall-effect sensors with brushless motors.
Northeast Cutoff, 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000

DUAL SOLENOID/MOTOR DRIVER -PULSE-WIDTH MODULATED CURRENT CONTROL

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