DRV8860PWPR

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Introduction: DRV8860PWPR is a low power DMOS automotive motor driver IC with integrated power MOSFETs and current sense amplifier from Texas Instruments. It supports up to 15V inputs, 0.5A to 1.5A stepper motor drive current, simultaneous PWM control with integrated over-current, over-temperature and chip junction-temperature protection. This IC is ideal for automotive and other non-automotive point-of-load motors in ratiometric or non-ratiometric applications, such as automotive fans, blowers and windshield wiper motor control.

Application Field: DRV8860PWPR is a low-power motor driver IC with integrated power MOSFETs and current sense amplifier. It is ideal for automotive, point-of-load and other non-automotive applications such as controlling fans, blowers and windshield wiper motors. This low power IC is capable of driving up to 1.5A depending on battery voltage and is designed to be used in ratiometric or non-ratiometric applications.

Working Principle: The DRV8860PWPR works by using a PWM (pulse width modulation) signal to control the current to the motor being driven. The PWM signal is applied to the EN (enable) pin of the IC, which can be used to control the speed of the motor. When the EN pin is high (logic 1), the motor is enabled and can be driven. When the EN pin is low (logic 0), the motor is disabled and cannot be driven. The current through the motor is monitored by the sense resistor connected between the DRAIN and DOUT pins of the IC. The voltage across the sense resistor is amplified by the current sense amplifier of the IC and can be used to detect and protect against over-current or over-temperature conditions

The IC also features integrated protection against over-current, over-temperature, and ESD (electrostatic discharge) protection. The integrated protection prevents the outputs of the IC from exceeding a certain limit. This prevents potentially damaging currents or voltages from entering the output stages, thus increasing the reliability and safety of the device.

The DRV8860PWPR also features an integrated thermal shutdown protection which activates if the junction temperature of the IC exceeds a certain predefined temperature. This temperature is usually around 170°C and it is used to protect the IC against thermal damage.

Overall, the DRV8860PWPR is an ideal solution for driving motors in automotive and other non-automotive applications. It provides an integrated solution for driving motors up to 1.5A and integrated protection against over-current, over-temperature and ESD protection. All of these features make it a reliable, safe and cost-effective motor driver solution.

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