DRV8811EVM

Series:	--
Part Status:	Active
Type:	Power Management
Function:	Motor Controller/Driver, Stepper
Embedded:	Yes, MCU, 16-Bit
Utilized IC / Part:	DRV8811
Primary Attributes:	--
Supplied Contents:	Board(s), Cable(s)
Secondary Attributes:	--

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DRV8811EVM Application Field and Working Principle

Evaluation and demonstration boards and kits provide designers with a tool for evaluating ICs for their job application and for learning the general working principles of these devices. At the same time, they allow for the fast and easy set-up of an IC in real-world environment or to create a prototype design. The Texas Instruments DRV8811EVM is an example of such products.The DRV8811EVM is a general evaluation board for evaluating the capability and performance of the DRV8811 motor driver IC. It supports both the current control and pulse width modulation (PWM) operating modes of the driver. This makes it ideal for motion control applications. The device can be used to operate brushed DC motors in robots, toys, and other DC motor-based equipment.The DRV8811 motor driver is a two-channel H-bridge IC. It can be used to switch power to two motor outputs. The DRV8811EVM features two full H-bridges with up to 1.3 A peak of output current controlled by differential inputs. It can be powered from a 5 V or 6 V supply, and it also features protection against current, voltage, and thermal overloads.In terms of power dissipation and switching frequency, the DRV8811 is designed to minimize power usage and generate high switching frequencies. The maximum operating frequency is 1 MHz, allowing for fast settling times with minimal current ripple. With the DRV8811EVM, this makes the device suitable for high-power motor applications such as toy robots and other high-torque motor applications.In terms of its physical design, the DRV8811EVM is a compact board with a surface-mount design. It features two full H-bridges that are controlled by two quadrature decoders. It also includes a variety of connectors, allowing for easy connection to the motor and power supplies. The board features a 3.3V supply and a 5V/3.3V mixed power supply, enabling the user to run the board from either 3.3V or 5V.In terms of the DRV8811\'s operating principles, the H-bridge consists of four sets of two transistors that are driven by two differential inputs. These two inputs can be controlled using either PWM or current control. Current control is managed by an integrated current limit amplifier which limits the maximum current drawn from the supply. When PWM is used, the motor will run at the selected duty cycle.Overall, the Texas Instruments DRV8811EVM is a comprehensive evaluation board that can be used to evaluate the capabilities and performance of the DRV8811 motor driver IC. Its compact design makes it ideal for motion control applications, and its onboard quadrature decoders and protection circuitry ensure reliable operation in high-power motor applications.

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