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Precision Motion Controller


Package | PIN: DW | 24
Temp: I (-40 to 85)
Carrier: Partial Tube
Qty Price
1-9 $66.22
10-24 $61.91
25-99 $59.96
100-249 $53.29
250-499 $52.90
500-749 $49.77
750-999 $44.67
1000+ $44.53


  • 32-bit Position, Velocity, And Acceleration Registers
  • Programmable Digital PID Filter with 16-bit Coefficients
  • Programmable Derivative Sampling Interval
  • 8- or 12-bit DAC Output Data (LM628)
  • 8-bit Sign-magnitude PWM Output Data (LM629)
  • Internal Trapezoidal Velocity Profile Generator
  • Velocity, Target Position, and Filter Parameters may be Changed During Motion
  • Position and Velocity Modes of Operation
  • Real-time Programmable Host Interrupts
  • 8-bit Parallel Asynchronous Host Interface
  • Quadrature Incremental Encoder Interface with Index Pulse Input
  • Available in a 28-pin Dual In-line Package or a SOIC-24 Package (LM629 Only)

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Texas Instruments  LM629M-8/NOPB

The LM628/LM629 are dedicated motion-control processors designed for use with a variety of DC and brushless DC servo motors, and other servomechanisms which provide a quadrature incremental position feedback signal. The parts perform the intensive, real-time computational tasks required for high performance digital motion control. The host control software interface is facilitated by a high-level command set. The LM628 has an 8-bit output which can drive either an 8-bit or a 12-bit DAC. The components required to build a servo system are reduced to the DC motor/actuator, an incremental encoder, a DAC, a power amplifier, and the LM628. An LM629-based system is similar, except that it provides an 8-bit PWM output for directly driving H-switches. The parts are fabricated in NMOS and packaged in a 28-pin dual in-line package or a SOIC-24 package (LM629 only). Both 6 MHz and 8 MHz maximum frequency versions are available with the suffixes -6 and -8, respectively, used to designate the versions. They incorporate an SDA core processor and cells designed by SDA.