VNH7100BASTR Integrated Circuits (ICs)

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VNH7100BASTR is a motor driver controller which belongs to PMIC – Motor Drivers, Controllers category. It is a monolithic IC which is intended for use in various high current applications that require pulse-width modulation (PWM) and linear control of motor. It features TTL compatible outputs, high current output, adjustable gain and PWM frequency, over-current and short circuit protection, and an integrated switching transistor gate drive.

Applications of VNH7100BASTR typically include stepper motor control, solenoid control, DC motor control, and speed control motor applications. In motor control applications, the VNH7100BASTR acts as a two-channel motor driver and it is typically used in conjunction with other control circuitry depending on the application. For example, in a DC motor control application, the VNH7100BASTR can be used in combination with a microcontroller, such as an AVR or PIC processor, to provide adjustable speed and torque control.

The VNH7100BASTR can also be used in conjunction with other control circuitry such as analog filters, microprocessor control, and feed forward control. This allows the user to create more sophisticated motor control applications such as those that require complex speed profiles and acceleration/ deceleration ramps.

The working principle of VNH7100BASTR is based on a PWM strategy. It is designed to provide a controlled voltage drop across a motor while allowing current to flow through the motor. When the voltage drop is below the limit, no current will flow through the motor and it will be stalled. The output voltage is modulated to provide a desired current flow through the motor. The voltage drop is adjusted according to the duty cycle set by the PWM signal.

The VNH7100BASTR has two main control pins, a PWM input pin and a gain setting pin. The PWM input pin is used to set the duty cycle of the motor control signal. This is known as Pulse Width Modulation or PWM. The gain setting pin is used to adjust the torque of the motor by changing the amount of current that flows through the motor. The PWM signal can be generated externally or by an on-board PWM circuit.

The VNH7100BASTR also features over-current protection, short circuit protection and an integrated gate drive circuit. The over-current protection prevents excessive current flow through the motor. The short circuit protection prevents excessive current flow when the motor is shorted out by connecting its output to ground. The gate drive circuit is used to drive the gate of the external power semiconductor switch.

The VNH7100BASTR is an ideal solution for a wide range of high current motor control applications. It offers a reliable, compact, and cost-efficient solution that can be quickly implemented in motor control designs. By using this device, designers can save time and money, as well as reduce their overall bill of materials.

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