Phase A
Phase B
Phase C
HB
HC
HA
Lower Power
Current Sense
Signal Ground Power Ground
Hall Feedback
Logic
and
Timing
Circuitry
High and
Low Side
Drivers
and
MOSFETs
3 Phase Brushless
Motor
CMI 5015
Vm
Vcc Output
FWD/REV
Speed Control
GND Vm
N
N
SS
(14) Power Ground
+Vm
Phase A
Phase B
Phase C
Speed (1)
cw/ccw
+Vcc
HA
HB
HC
N/C
Signal Ground
+12.0 Volts
GND
50 K Ohm
Typical Uses:
Packaged in a miniature hermetic module, this
device is ideally suited for high performance battery
operated 3-Phase Bipolar Brushless Motor Control
Applications. Among the many applications are:
Robotics, electromechanical valve assemblies, battery
operated motors, fans and blowers, cryogenic coolers,
and wheel chairs.
The CMI 5015-12 operates over the temperature
of -55°C and +125°C. Custom designs are available
upon request.
CMI
3 PHASE BRUSHLESS DC MOTOR
CONTROL DRIVER
The CMI 5015-12 motor control module is specifically
designed for operating fractional horsepower motors. This
unique module operates from a single input supply ranging
from +4 to +12 Volts with output capabilities of 5 to 30
Amps continuous current and peak currents of 45 Amps.
Housed in a metal hermetic package this module is suited
for applications in harsh environments.
Designed with the user in mind this plug and play
module is easy to use. The circuit uses the latest in ASIC
technology for commutation, cross conduction protection,
automatic braking, under voltage lockout and cycle-by-
cycle current limiting. It also contains a temperature
compensated voltage reference.
61 Union St. Attleboro Massachusetts 02703
Phone (508) 226-6969 • Fax (508) 226-0938 • E-mail sales@cmodules.com
Description:
CMI
The high efficiency “N” Channel MOSFET output stage,
driven with a custom high side driver, allows true low to
zero speed operation without the loss of the high side
voltages. A unique low loss current sensing circuit and
an internal bus capacitor eliminate the need for large
external components.
The CMI 5015-12 incorporates a DC/DC converter
that allows the module to operate off a single supply as
low as 4 Volts while supplying the maximum current to
the output stage. Standard electrical sensor phasing is
60° with a factory wiring option of 120°.
CMI 5015-12
CMI 5015-12 Features:
䊳Single Supply Operation
䊳Low Loss Current Sensing
䊳Under Voltage Lockout
䊳Automatic Brake Actuation
䊳100 mA +12 Volt Reference
䊳Forward / Reverse Control
䊳Thermal Shutdown
䊳Internal Bus Capacitor
䊳-55°C to +125°C Operation
CMI
CMI
CMI 5015-12
61 Union St. Attleboro Massachusetts 02703
Phone (508) 226-6969 • Fax (508) 226-0938 • E-mail sales@cmodules.com
Application Notes:
A single +4.0 to +12.0 Volt power supply is required
to operate this 3 Phase DC Brushless Motor Controller.
Fig 2 illustrates a typical application using the CMI
5015-12 Controller. Three 12 Volt CMOS compatible
open collector hall devices are required for
commutation. The internal +12.0 Volt Reference is
capable of supplying up to 100mA and is more than
adequate for the Hall devices and additional driver
circuitry.
Care should be taken in connecting the Signal
ground (pin 9) and should only be used as low current
reference.
A 66µF Low ESR Bus Capacitor is provided
internally and should be adequate for most
applications, however, at user discretion additional
capacitance can be added externally when bus leads
are highly inductive.
Mechanically the unit should be mounted to a heat
sink using either silicon grease or a thermal pad.
Recommended hardware are #6 washers and
6-32 / 6-40 socket head cap screws tightened to a
minimum of 30 in-lbs. of torque.
Fig. 2. Typical Application Circuit
CMI has made every effort to insure the accuracy of this specification. However, no responsibility is assumed for possible omissions and or inaccuracies. CMI reserves
the right to make changes without further notice to this specification to improve reliability, function, or design. Changes and additions made after the publication of this data
sheet will be reflected in updated sheets. CMI does not assume any liability arising out of the application or use of circuit described herein; neither does it convey any license
under its patent rights, nor the rights of others. ©1999 Composite Modules Incorporated
COMPOSITE MODULES, INC.COMPOSITE MODULES, INC.
CMI
