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Performance Motion
Devices, Inc.
80 Central St
Boxborough, MA 01719
P: 978.266.1210
F: 978.266.1211

MC71112/MC73112 Torque Control ICs

Juno-S-full-logo-low-res-combo-optimized-datasheet-rev2
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Juno® MC71112 & MC73112-series ICs provide advanced torque control for Brushless DC and DC Brush motors. Available as a single one-axis IC in two different package options, these products provide ultra-efficient FOC control and are ideal for a wide range of pump, spindle, force, and end effector control applications. Juno ICs interface to external bridge-type switching amplifiers and utilize Performance Motion Device’s advanced current and switch-signal technology for ultra smooth operation. Juno ICs are equipped with amplifier management features such as overcurrent, over/undervoltage, and overtemperature sense.

  • Controls 3-phase Brushless DC or DC Brush motors
  • High performance digital current loop
  • Internal ramp generator
  • Sinusoidal or 6-step commutation
  • Field oriented control
  • Hall sensor inputs
  • Serial communications
  • Quadrature encoder input up to 40 Mcounts/sec
  • 64-pin TQFP or 56-pin VQFN package
  • SPI (serial peripheral interface) or direct analog signal command input
  • 20, 40, 80, 120 kHz PWM rate
  • Overcurrent, over/under voltage, and overtemperature monitoring

juno-connection-diagram-MC7X112-phase1b

Internal Block Diagram

 Internal Block Diagram

Juno-MC7X112-internal-block-diagram-phase1b

 

Part Numbers

 Part Numbers

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Part Number Package Function Motors Supported
MC71112 64-pin TQFP Torque control DC Brush
MC71112N 56-pin VQFN Torque control DC Brush
MC73112 64-pin TQFP Torque control Brushless DC
MC73112N 56-pin VQFN Torque control Brushless DC

Specifications

 

Specifications

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Parameters

Value

Applicable P/Ns

MC71112, MC71112N, MC73112, MC73112N

Motors supported

3-phase Brushless DC, DC Brush

Operating modes

Direct command input via external circuitry (onboard NVRAM holds configuration)
Host command: microprocessor command input via serial

Current control modes

FOC (field oriented control)
Third leg floating
A/B
Voltage mode (no current control)

Commutation modes

6-step (using Hall sensors)
Sinusoidal (with quadrature encoder input)

Motor output modes

High/low PWM
Sign/Magnitude PWM

Communication modes

Point-to-point asynchronous serial, Multi-drop asynchronous serial

Serial baud rate range

1,200 to 460,800 baud

Internal trace RAM

6,144 16-bit words

Internal NVRAM

1,024 16-bit words

Torque command options

Analog signal (12-bit A/D resolution)
Digital SPI (16-bit resolution)
Internal ramp generator
Direct set register

Control/status signals

Enable, FaultOut, Hostinterrupt, Brake

Motor drive signals

PWM High/LowA-C, AmplifierEnable, CurrentA-C

DC Bus safety signals

Shunt, BusVoltage, BusCurrentSupply, Temperature

Motor feedback signals

QuadA, QuadB, Index, HallA-C

Max quadrature rate

40 Mcounts/second

Max SPI frequency

10 MHz

Current loop rate

20 kHz

Commutation rate

40 kHz

PWM rate

20, 40, 80, 120 kHz

Dimensions

64-pin TQFP: 12 mm x 12 mm including leads
56-pin VQFN: 7.2 mm x 7.2 mm

 

Mechanical Dimensions

64-Pin TQFP

Juno 64-Pin Dimensions

56-Pin VQFN

Juno 56-Pin Dimensions

 

Ratings and Compliance

Absolute Maximum Environmental and Electrical Ratings

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Supply Voltage (Vcc)

-0.3V to +4.6V

FltCap pin voltage range

-0.3V to 2.5V

Analog voltage range with respect to AnalogGND (AnalogVcc)

-0.3V to +4.6V

Input voltage (Vi) -0.3V to +4.6V
Output voltage (Vo) -0.3V to +4.6V
Input clamp current (Ii,clamp), peak: +/-20 mA
Input clamp current (Ii,clamp), continuous: +/-2 mA
Output clamp current (Io,clamp) +/-20 mA
Package thermal impedance, 64-pin TQFP package (θJA) 56.5°C/W
Package thermal impedance, 56-pin VQFN package (θJA) 34.8°C/W
Junction temperature range (Tj) -40°C to 150°C
Storage Temperature (Ts) -65°C to 150°C
Nominal Clock Frequency (Fclk) 10.0 MHz

Developer Tools

Developer Kit

Developer Kit includes:

 

DK71112N-developer-kit-datasheet-image

 

Developer Kit Part Numbers

64-pin TQFP package developer kits

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Developer Kit Part Number Juno IC Installed Motors Supported Comments
DK71112 MC71112 DC Brush Torque control
DK73112 MC73112 Brushless DC Torque control

 

56-pin VQFN package developer kits

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Developer Kit Part Numbers Juno IC Installed Motors Supported Comments
DK71112N MC71112N DC Brush Torque control
DK73112N MC73112N Brushless DC Torque control

Documentation & Downloads

 

Documentation

Datasheet(s)

PDF-icon-green-01MC7X112 Torque Control IC Datasheet

User Guides

PDF-icon-green-01Juno Torque Control IC User Guide v1.2
PDF-icon-green-01DK78113 Developer Kit User Manual v1.2
PDF-icon-green-01DK73112N Developer Kit User Manual v1.3
PDF-icon-green-01MC78113 Electrical Specifications v1.3
PDF-icon-green-01Juno Velocity & Torque Control IC Programming Reference v1.1


Design Resources

Software Downloads

software-icon-GREEN-01Pro-Motion
software-icon-GREEN-01SDK (Software Development Kit)

Highlights / Papers

article-icon-green-01New Low Cost Torque Control ICs Provide Field Oriented Control

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PERFORMANCE MOTION DEVICES, INC.
80 Central Street | Boxborough, MA 01719
P: 978.266.1210 | F: 978.266.1211 | info@pmdcorp.com

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