User manual
Motor Control Shield with BTN8982TA
for Arduino
Users Manual 15 V0.9, 2015-03
4 Getting Started
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4.1 Target applications
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The application targeted by the BTN89xx devices is brushed DC Motor Control. Besides Motor Control any
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other inductive, resistive and capacitive load within the electrical characteristics of the NovalithIC
TM
can be
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driven by the BTN89xx. In the Motor Control Shield two BTN8982TA are used. Each is capable of driving up to
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50 A. The limited thermal performance of the Shield PCB limits the recommended maximum current to 30 A.
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4.2 Typical target application
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With the Motor Control Shield either two mid power uni-directional DC-brushed motors or one bi-directional
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brushed motor (with the two half-bridges used in H-bridge configuration) can be driven. The half-bridges
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are controlled via the IN (Input) and INH (Inhibit) pins. The slew rate of the high frequency PWM can be
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adjusted by connecting an external resistor between the SR pin and GND. The BTM8982TA also provides a
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sense current at the IS pin. The Power Shield provides a fast and easy access to brushed DC motor solutions
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of up to 300 W.
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4.2.1 Getting started: Shield
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Choose a mid-power, brushed DC motor.
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Choose a DC adapter. The nominal input of the Power Shield is 8 – 18 V DC. Maximum Voltage is 40 V
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Select pin headers and connectors of your choice and solder to the Power Shield. Due to cost
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reduction, the pin headers and connectors are not attached.
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Connect the Power Shield to Arduino Uno R3 or XMC 1100 Boot Kit.
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Connect power supply (5 V) to the Arduino Uno R3 or XMC 1100 Boot Kit (Micro USB). For the XMC
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Boot Kit a standard mobile phone charger can be used.
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Program the controller board with the motor control software (see 4.2.2).
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Connect the motor to OUT1 and OUT2 (H-bridge). For bi-directional applications connect the motor
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to OUT1 and OUT2 (H-bridge). For uni-directional use, the motor can be placed between an output
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OUT1/OUT2 and either GND or Vbat (half-bridge).
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Connect the DC adapter to the Power Shield (Vbat, GND).
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Turn on the power.
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