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Description
2-Phase Stepper Motor Unipolar Driver ICs
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The SLA7024M, SLA7026M, and SMA7029M are designed for high-efficiency and high-performance operation of 2-phase, unipolar stepper motors. An automated, innovative packaging technology combined with power FETs and monolithic logic/control circuitry advances power multi-chip modules (PMCMsTM) toward the complete integration of motion control. Highly automated manufacturing techniques provide low-cost and exceptionally reliable PMCMs suitable for controlling and directly driving a broad range of 2-phase, unipolar stepper motors. The three stepper motor multi-chip modules differprimarily in output current ratings (1.5 A or 3.0 A) and package style.
All three PMCMs are rated for an absolute maximum limit of 46 V and utilize advanced NMOS FETs for the high-current, high-voltage driver outputs. The avalanche-rated (≥100 V) FETs provide excellent ON resistance, improved body diodes, and very-fast switching. The multi-chip ratings and performance afford significant benefits and advantages for stepper drives when compared to the higher dissipation and slower switching speeds associated with bipolar transistors. Normally, heat sinks are not required for the SLA7024M or SMA7029M. The SLA7026M, in demanding, higher-current systems designs, necessitates suitable heat transfer methods for reliable operation.
Complete applications information is given on the following pages. PWM current is regulated by appropriately choosing current-sensing resistors, a voltage reference, a voltage divider, and RC timing net works. The RC components limit the OFF interval and control current decay. Inputs are compatible with 5 V logic and microprocessors.
BENEFITS AND FEATURES
● Cost-Effective, Multi-Chip Solution
● ‘Turn-Key’ Motion-Control Module
● Motor Operation to 3 A and 46 V
● 3 rd Generation High-Voltage FETs
● 100 V, Avalanche-Rated NMOS
● Low rDS(on) NMOS Outputs
● Advanced, Improved Body Diodes
● Single-Supply Motor/Module Operation
● Half- or Full-Step Unipolar Drive
● High-Efficiency, High-Speed PWM
● Dual PWM Current Control (2-Phase)
● Programmable PWM Current Control
● Low Component Count PWM Drive
● Low Internal Power Dissipation
● Heat Sinking (Normally) Unnecessary
● Electrically Isolated Power Tab
● Logic IC- and μP-Compatible Inputs
● Machine-Insertable Package
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10000 buyer reviews from United States
Susan Martin
Length of registration:7 years
The SMA7029M integrated circuit is an excellent choice for a variety of applications. It is easy to use and provides reliable performance. The circuit is well designed and has a wide range of features that make it a great choice for many applications. It is also very cost-effective and provides great value for money. I highly recommend this integrated circuit for anyone looking for a reliable and
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03/17/2023
Carlos Gomes
Length of registration:12 years
Very satisfied with
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11/22/2017
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SMA7029M
SMA7029M has several brands around the world that may have alternate names for SMA7029M due to regional differences or acquisition. SMA7029M may also be known as the following names:
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