MC33486DH

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The MC33486DH is a motor driver and controller, part of the power management integrated circuit (PMIC) family. It is designed to drive, control and protect brushed DC motors with high efficiency and low power consumption. The MC33486DH works in conjunction with a range of microcontrollers, digital signal processors and other digital and analog components to provide a reliable motor drive and control system. This chip has been traditionally used in a variety of automotive and industrial applications, such as automotive motor control, fans, compressors and home appliances.

The MC33486DH features two low-side and two high-side drivers, as well as two logic inputs that can be used to drive the drivers. To control the motor, the MC33486DH utilizes a pulse width modulation (PWM) technique, which provides a high level of control and a wide speed range, between 0 and 25K revolutions per minute (RPM). The chip also features two current limiting circuits, to protect the motor from high current overloads and short circuits. For high-current applications, the chip is designed to drive up to 2A through a single bridge.

The MC33486DH also has a comprehensive suite of protection features to increase reliability and reduce system downtime. These protection circuits include over-current and over-temperature protections, as well as a low-side drive active deadtime protection to prevent cross conduction of the motor current. This chip also includes an undervoltage lockout and an overvoltage protection circuit.

In addition to the motor control features, the chip also contains a power management unit that provides a regulated supply voltage for the digital circuitry. This power management block includes an active-supply disconnect/shutdown circuit, and an internal voltage regulator that maintains whatever voltage is supplied to the chip.

The MC33486DH is capable of sustained operation over a wide temperature range, from -40°C to 125°C. This makes it suitable for a wide range of applications and environments, from automotive and industrial to medical, consumer and entertainment. The MC33486DH is available in a variety of packages and other configurations, offering designers a wide range of flexibility. Furthermore, this chip is also pin-compatible with other devices in the PMIC family, allowing for a seamless integration of motor drive and control with other application-specific components.

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