DRV8832DGQR Integrated Circuits (ICs)

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The DRV8832DGQR is an automotive-grade, high-performance motor driver from the Power Management Integrated Circuits (PMIC) family. It is specifically designed for automotive applications such as automotive power steering systems. The driver consists of an integral narrow- and wide-voltage operating range dual-channel H-bridge integrated circuit. It features advanced functions such as diagnostics, Hall-effect sensor failure detection, overcurrent, and under- and overvoltage protection. It is also designed to protect against motor misoperation, short-circuiting, and power supply noise.

The DRV8832DGQR offers two nominal operating voltages, 4.5V to 22V and 10V to 45V. It has a peak current rating of 2.3A, a continuous current rating of 1.3A, a thermal-shutdown temperature of 145°C and a standby current of 5.8mA. The driver is also capable of operating up to 25kHz, making it suitable for high speed applications. It is supplied in a 16-lead thermally-enhanced LGA (Land Grid Array) package.

The DRV8832DGQR is primarily used for controlling and driving DC motors in various automotive applications such as traction control, power steering, active suspension, and electric vehicle systems. Its integrated H-bridge allows the user to accurately and quickly control the speed and direction of a DC motor. The driver also provides voltage sensing capability to monitor the motor’s output voltage and current, allowing the user to optimize motor performance while protecting the motor against overload. Additionally, its integrated free-wheeling diodes protect the motor against reverse voltage transients, eliminating the need for external freewheeling components in many applications.

The basic working principle of the DRV8832DGQR is to provide two outputs that control the direction and speed of the motor. The outputs control the two output transistors of the H-bridge, one via TOP and one via TBOT. These two outputs provide the current paths for the DC motor to power it in one direction or the other depending on the logic state. The EN pin enables or disables the entire H-bridge, and the PWMD pin can be used to control the speed of the motor. The feedback pin (FB) provides an analog output proportional to the voltage across the motor.

The thermal performance of the DRV8832DGQR is also enhanced with its thermal-protected design. Its advanced on-die temperature sensing system is capable of detecting temperature rise and automatically limiting the current to protect its internal components from overheating. This in turn keeps the motor driver from burning out, thus maximizing its lifetime.

The DRV8832DGQR is a versatile motor driver that provides robust and reliable performance in a wide variety of automotive applications. With its combination of built-in features, advanced diagnostic capabilities, and advanced thermal protection, it is ideal for use in power steering, active suspension, traction control, and electric vehicle motor control applications.

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