DRV8839DSSR Integrated Circuits (ICs)

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The DRV8839DSSR is a power motor driver controller from Texas Instruments. It is part of their PMIC – Motor Drivers, Controllers series and is designed to support the PWM speed control of brushless DCEC bldc, but also stepper and brushed DC motors.

The DRV8839DSSR is a 3-phase full bridge gate driver capable of delivering up to 6A RDRV supported and up to 3A source per channel. Operating from a 10V to 18V input range, the device can handle motor voltages up to 34V. It contains an integrated fault-protection system with current, temperature and voltage monitors, as well as overvoltage and current-limit protections.

The DRV8839DSSR should be used in combination with a speed controller, such as a microcontroller to control the speed of the motor. The controller will output a pulse-width modulated (PWM) signal which is input into the DRV8839DSSR and used to control the speed of the motor. The DRV8839DSSR turns on and off the power applied to each of the three phases of the motor depending on the PWM signal it is receiving. For example, if a full-on signal is being received, the DRV8839DSSR will keep the power applied to each of the three phases on for the length of the pulse. This will cause the motor to spin at full speed. If the PWM signal is at a lower setting, the DRV8839DSSR will turn off the power applied to one or two of the three phases for a percentage of the PWM signal’s duration. This will cause the motor to spin at a slower speed.

The DRV8839DSSR also includes diagnostic outputs that monitor system parameters such as temperature, current, and voltage. It also includes a variety of fault protection features such as short circuit, over-current, and overvoltage. The device also features an adjustable dead time control, allowing users to customize the timing needed to protect the driver from the effects of reverse current flow. The DRV8839DSSR also comes with a low-resistance power switch, allowing it to drive higher current motors than some of its competitors.

The DRV8839DSSR is an ideal choice for applications requiring high power motor control. Its wide input voltage range, integrated fault-protection features, adjustable dead time control, low-resistance power switch, and diagnostic outputs make it a great choice for motor control applications that require high power and precision.

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