UDN2916LBTR-T Integrated Circuits (ICs)

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The UDN2916LBTR-T is a monolithic integrated circuit designed as a 5- or 6-phase motor driver and/or controller. It is one of three ICs in the UDN series of ICs (Universal Drive and Motor Control ICs, which includes the UDN2919 and UDN2918) and is a member of the PMIC - Motor Drivers, Controllers family of ICs. The UDN2916LBTR-T has been designed to integrate the control, drive and feedback from the motor into one IC, providing a low cost and highly integrated solution for two- and three-phase brushless DC motor applications. The IC contains a high side driver and low side drivers that can be connected in either in parallel or series configuration for a 5 or 6 phase motor type. The maximum output current is 120A for an external MOSFET supply of 10V, and the motor can be operated from either a three-cell or two-cell battery by using the appropriate supply voltage. The on-board temperature sensor and integrated over-temperature protection provide safety when the UDN2916LBTR-T is used in harsh environments.

The UDN2916LBTR-T incorporates various features that make the solution highly integrated. These features include a pulse-width modulation (PWM) engine, active shoot-through protection, safe-start protection, internal PWM frequency modulation to minimize battery current, adjustable PWM frequency, integrated fault protection circuitry and an on-board temperature sensor. The PWM engine operates at a frequency of up to 350kHz and features adjustable dead time (pulse adjustable dead time) and adjustable slew rate. The active shoot-through protection prevents switching the high and low sides of the drive at the same time, and the fault protection circuitry automatically shuts the motor down if detected. The on-board temperature sensor is used to detect when the chip is operating at too high a temperature and can be used to shut the motor down if necessary.

The UDN2916LBTR-T is also designed to provide a low-cost solution for two- and three-phase BLDC (brushless DC) motor applications. The integrated BLDC control logic supplies the gate drive signals for each motor phase in order to help develop a rotating magnetic field in the motor. This is done by controlling the switching of each motor phase in sequence, which creates the rotating magnetic field. The IC also includes a Hall Effect input that can be used to detect the position of the rotor, allowing the control logic to know when to switch each motor phase. The integrated dual-phase control logic also allows for speed or position control instead of using external MCUs or DSPs, making the solution much more cost-effective.

In conclusion, the UDN2916LBTR-T is an integrated circuit designed to provide a low-cost, highly integrated solution for brushless DC motor applications. The features of the IC, such as the active shoot-through protection, safe-start protection, integrated PWM frequency modulation, adjustable PWM frequency, and on-board temperature sensor, make it an ideal choice for a wide variety of motor applications. By incorporating the necessary components into one integrated IC, the UDN2916LBTR-T eliminates the need for external MCUs or DSPs, making it an attractive option for cost-sensitive designs.

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