Dc Motor Driver
Motor Driver 15A IRF7862PBF 25 available ROB-09107 The Pololu 15 Amp high-power motor driver is a discrete MOSFET H-bridge designed to drive one DC brushed motor.
A motor driver is an integrated circuit chip which is usually used to control motors in autonomous robots. Motor driver act as an interface between Arduino and the motors. The most commonly used motor driver IC’s are from the L293 series such as L293D, L293NE, etc. These ICs are designed to control 2 DC motors simultaneously. Our motor drivers simplify design, reduce board space and lower system cost. From integrated motor drivers with simple control interfaces to smart gate drivers and functional safety devices, our products help system designers maximize motor performance. We are DC motor and linear actuator specialists Our customers’ needs are always a main focus for our organization. Many of our motors are delivered specifically tailored to our customers’ requirements. Since the series-wound DC motor develops its highest torque at low speed, it is often used in traction applications such as electric locomotives, and trams. The DC motor was the mainstay of electric traction drives on both electric and diesel-electric locomotives, street-cars/trams. Our motor drivers simplify design, reduce board space and lower system cost. From integrated motor drivers with simple control interfaces to smart gate drivers and functional safety devices, our products help system designers maximize motor performance. Motor Drivers and MOSFET Gate Drivers for Brushed and Brushless DC Motor Applications. Our motor drivers target applications with Brushed DC (BDC), Brushless DC (BLDC) and stepper motors intended for use in standard temperatures, as well as in demanding high-temperature 'under-the-hood' conditions.
The L293D is a 16 pin IC, with eight pins, on each side, dedicated to the controlling of a motor. There are 2 INPUT pins, 2 OUTPUT pins and 1 ENABLE pin for each motor. L293D consist of two H-bridge. H-bridge is the simplest circuit for controlling a low current rated motor.
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Pin No. - Pin Characteristics
- 1 - Enable 1-2, when this is HIGH the left part of the IC will work and when it is low the left part won’t work.
- 2 - INPUT 1, when this pin is HIGH the current will flow though output 1
- 3 - OUTPUT 1, this pin should be connected to one of the terminal of motor
- 4,5 - GND, ground pins
- 6 - OUTPUT 2, this pin should be connected to one of the terminal of motor
- 7 - INPUT 2, when this pin is HIGH the current will flow though output 2
- 8 - VCC2, this is the voltage which will be supplied to the motor.
- 16 - VCC1, this is the power source to the IC. So, this pin should be supplied with 5 V
- 15 - INPUT 4, when this pin is HIGH the current will flow though output 4
- 14 - OUTPUT 4, this pin should be connected to one of the terminal of motor
- 13,12 - GND, ground pins
- 11 - OUTPUT 3, this pin should be connected to one of the terminal of motor
- 10 - INPUT 3, when this pin is HIGH the current will flow though output 3
- 9 - Enable 3-4, when this is HIGH the right part of the IC will work and when it is low the right part won’t work.
Why 4 grounds in the IC?
The motor driver IC deals with heavy currents. Due to so much current flow the IC gets heated. So, we need a heat sink to reduce the heating. Therefore, there are 4 ground pins. When we solder the pins on PCB, we get a huge metalllic area between the grounds where the heat can be released.
Why Capacitors?
The DC motor is an inductive load. So, it develops a back EMF when supplied by a voltage. There can be fluctuations of voltage while using the motor say when suddenly we take a reverse while the motor was moving in some direction. At this point the fluctuation in voltage is quite high and this can damage the IC. Thus, we use four capacitors that help to dampen the extreme variation in current.
ST, a pioneer in the field of motor and motion control, offers a wide range of motor drivers covering the requirements of brushed DC motors, stepper motors and brushless DC motors over an extensive range of voltage and current ratings.
Dc Motor Driver L293d
Our line-up of STSPIN motor drivers embeds all the functions needed to drive motors efficiently and with the highest accuracy, and include an advanced motion profile generator to relieve the host microcontroller, while ensuring robustness and reliability thanks to a comprehensive set of protection and diagnostic features.
Operating from a supply voltage as low as 1.8 V, the portfolio has been extended with the introduction of low-voltage STSPIN motor drivers which enable power savings in battery-powered smart devices thanks to the best-in-class standby current of less than 80 nA.
The benefit of our 10 and 15 year longevity program is available for our industrial grade STSPIN motor drivers.
STSPIN motor drivers
Stepper motor drivers
Scalable and robust stepper motor drivers, featuring accurate positioning and smooth motion profile with up to 256 micro-steps per step.
Brushed DC motor drivers
Simple, reliable and cost-effective solution to drive one or more brushed DC motors over a wide current and voltage range.
Brushless DC (BLDC) motor drivers
Extensive diagnostics and fully-protected to reduce the number of external components, cost and complexity.
Gate Drivers
IGBT and MOSFET gate drivers
Include integrated high-voltage half-bridge, single and multiple low-voltage gate drivers.
A complete ecosystem is provided to support design-in and shorten time-to-market
Designing motor control applications becomes much easier with the outstanding performance, features and full support of STSPIN motor driver ICs that make brushed DC, stepper and brushless motor control designs more efficient in a variety of applications.
A wide range of evaluation boards is provided, together with low-cost plug-and-play discovery kits: an ideal development tool for both beginners and experienced users that is autonomous and can be used with a software interface or with a custom firmware thanks to the embedded microcontroller.
Schematics, BOMs and gerber files are available to give you a headstart with your hardware design together with comprehensive technical documentation.
Software suites are also provided to enable quick and easy development of motor driving solutions.
In addition, STSPIN motor drivers can be easily evaluated in combination with an STM32 32-bit microcontroller in an open, flexible and affordable development environment to enable fast prototyping that can quickly be transformed into final designs.
Dc Motor Driver Price
The comprehensive development environment includes:
Dc Motor Driver Circuit
- STM32 Nucleo development boards with a comprehensive range of affordable development boards for all STM32 microcontroller series.
- STM32 Nucleo expansion boards based on STSPIN motor drivers, the expansion boards can be plugged on top of the STM32 Nucleo development boards. More complex functionalities can be achieved by stacking additional expansion boards.
Dc Motor Driver Datasheet
The expansion boards are equipped with standardized interconnections such as an Arduino Uno R3 connector or a morpho connector for a higher level of connectivity.
Each expansion board is supported by STM32-based software modules.