DRV8804DWR

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The DRV8804DWR is an important part of the power management integrated circuit (PMIC) from Texas Instruments. It offers a range of features for driving and controlling motors, including the DRV8804DWR, DRV8803DWR and DRV8802DWR. It is designed to provide a cost-effective solution for the motor control and power management needs of automotive, industrial and consumer applications.

The DRV8804DWR is a 4-channel, 5-phase PWM motor driver/controller IC with on-chip current sensing technology that supports wide supply voltage range and fast-switching MOSFET technology. It has a programmable current limit, which is adjustable across the voltage range of 4.5 to 40V to meet the requirements of different applications. It also supports a programmable motor start-up process that prevents current overshoot or inrush current.

The DRV8804DWR provides a wide range of features, including digital diagnostics, dead time protection, over-temperature protection, ESD protection, low on-resistance MOSFETs and integrated gate driver for driving the MOSFETs with minimal gate charge. The gate drivers offer fast gate charging, even at 7V supply voltage, and are designed to reduce switching losses. It also provides a high-frequency PWM mode for pulse-width modulation (PWM) signals with increased resolution.

The DRV8804DWR is a full bridge driver capable of driving both brushed DC and stepper motors with ease. It can support up to four channels for independent control of each motor, and allows for up to five PWM outputs for driving each motor in a single channel. The DRV8804DWR also supports a ‘motor brake’ feature, which helps to reduce the dissipated power and improve the motor control performance by actively breaking the motor. It has an adjustable dead time setting, ensuring the motors are driven in a safe way.

The on-chip current sensing feature of the DRV8804DWR can be used to accurately monitor and control the current in the motor and motor phase at all times. The on-chip current sensing feature also allows for the implementation of speed or torque-based motor control. The DRV8804DWR features low RDS(ON) MOSFETs and integrated Gate Driver to provide high efficiency, reliable operation and fast MOSFET switching times.

In addition, the DRV8804DWR supports a wide supply voltage range of 4.5V to 40V, making it suitable for a wide range of automotive, industrial and consumer applications that require power and motor control. The DRV8804DWR is also an ideal solution for applications that require the control of both brushed DC and stepper motors.

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