ATA6834C-PLQW

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PMICs are electronic components that provide power management to systems and subsystems. The ATA6834C-PLQW is a 4-phase, CMOS, non-synchronous motor controller for in-vehicle 12V applications such as electric power-assisted steering (EPAS) and window lifters. It is an advanced power management device that supports various functions and low overall system cost. It is designed to work with various microcontroller manufacturers\' microprocessors. This PMIC offers an integrated solution that simplifies the design of brushless DC motor control systems. It has an integrated voltage regulator and over-voltage protection circuitry.

The ATA6834C-PLQW motor controller integrates two PWM outputs for motor control and measures motor currents up to 4A. It also features integrated over-voltage protection, as well as under-voltage and over-current protection, to simplify system design and keep costs low. The device supports input voltage variations ranging from 7V to 14.5V. It also offers a power save mode, automatic switch-off and pulse-width modulation (PWM) control. It has an adjustable PWM frequency with a range of 1kHz to 20kHz to provide flexibility in controlling motor speed.

The ATA6834C-PLQW is optimized for brushless DC motor applications, such as electric power-assisted steering (EPAS), window lifters, and other in-vehicle 12V applications. It utilizes a 4-phase Hall Device for field-oriented control (FOC) in closed-loop applications, and it is capable of sensing motor current up to 4A. The built-in fixed-off-time gate driver circuitry is designed to drive intelligent lighting systems, such as dimmers, headlamps and fog lamps.

The device features a motor control back EMF (BEMF) sensing input to ensure high precision torque generation. It also has a watchdog timer refresh input to reset the system under system faults, two high-side switches for overload protection, and two low-side switch outputs to monitor current in each phase. By using advanced configurable drive modes, it is capable of achieving high performance in a variety of applications.

Overall, the ATA6834C-PLQW motor controller is ideal for various in-vehicle 12V applications due to its integrated design and power saving features. Its versatile design allows for a wide range of applications and provides excellent efficiency, control, and protection. Its configurable drive modes, adjustable PWM frequency, and BEMF sensing input make it suitable for advanced motor control applications.

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