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SMC6M40-15-1-YY Datasheet(PDF) 8 Page - Sensitron

Part # SMC6M40-15-1-YY
Description  Brushless DC Motor Driver Module in a Power Flatpack 80-200V, 50 Amp
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Manufacturer  SENSITRON [Sensitron]
Direct Link  http://www.sensitron.com
Logo SENSITRON - Sensitron

SMC6M40-15-1-YY Datasheet(HTML) 8 Page - Sensitron

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• 221 West Industry Court
Deer Park, NY 11729
(631) 586 7600, FAX 631 242 9798
• World Wide Web - www.sensitron.com • E-mail Address - sales@sensitron.com • Page 8
SENSITRON
SEMICONDUCTOR
TECHNICAL DATA
DATA SHEET 1023, REV. D
Pin Descriptions
Vcc ( Pin 1 ), is the input biasing supply connection for the controller. Under-voltage lockout
keeps all outputs off for Vcc below 10.5V. Vcc pin should be connected to an isolated 15V
power supply. The return of Vcc is pin 19.
EA1- ( Pin 2 ), is the error amplifier inverting input.
EA2+ ( Pin 3 ), is the non-inverting input of a spare amplifier.
EA1+ ( Pin 4 ), is the error amplifier non-inverting input. EA1- and EA1+ are not internally
committed to allow for a wide variety of uses. They can be connected to Io for current-mode
control, or Tach output for voltage-mode control.
+5V Ref( Pin 5 ), is a 5V reference with 30mA of maximum available output current. This pin
should bypassed to Gnd with 1-5
µF capacitor depending on the load current.
EA2- ( Pin 6 ), is the inverting input of a spare amplifier.
EA2 ( Pin 7 ), out is the output of a spare amplifier.
EA1 ( Pin 8 ), out is the output of the error amplifier and is internally connected to the PWM
comparator.
Ioc-Ref ( Pin 9 ), is the over-current reference voltage. It is internally set to 1.15V. This
reference can be reduced by connecting a resistor between Ioc Ref and Gnd . The resistor
value is
R= (Ioc-Ref) /(0.05 - 0.043*(Ioc-Ref)) K
(1)
Also, Ioc Ref can be increased by connecting a resistor between Ioc Ref and the 5V
reference. The resistor value is
R= (5.0 – (Ioc-Ref))/(0.043*(Ioc-Ref) – 0.05) K
(2)
This pin is connected to the over-current comparator for cycle-by-cycle current limiting. The
over-current reference voltage is set according to the formula
Ioc-Ref=Rs*Ip*5 volts
(3)
Where Rs is the current sense resistor value in ohms and Ip is peak current limit in amperes.
Dir out ( Pin 10 ), is direction output representing the actual direction of the rotor as
decoded from the hall sensors. There are two valid transitions of the hall sensor inputs; one
translates to a clockwise rotation and another which translates to a counterclockwise rotation.
The polarity of Dir-out is the same as Dir-in while motoring.
SMC6MXX-XX
SMC6MXX-XX-1


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