DRV8870DDAR

DRV8870DDAR is a highly integrated, brushed DC motor driver from Texas Instruments (TI). It is designed to provide efficient and reliable motor control for a wide range of applications, including printers, appliances, industrial equipment, and other small machines.

Key Features:

• H-Bridge Motor Driver:

  • DRV8870DDAR incorporates an H-bridge driver that consists of four N-channel MOSFETs. This allows for bidirectional control of the motor, enabling it to rotate in both directions and achieve a peak current of up to 3.6A.

• PWM Control Interface:

  • The device supports Pulse Width Modulation (PWM) control, enabling precise speed regulation of the DC motor. By varying the PWM signal input through IN1 and IN2 pins, users can adjust the motor’s speed and direction.

• Integrated Current Regulation:

  • DRV8870DDAR features integrated current regulation, which allows for the limitation of motor current based on an external sensing resistor connected to the ISEN pin. This helps in reducing system power requirements and maintaining stable capacitor voltage, especially during motor startup and stall conditions.

• Wide Operating Voltage Range:

  • The device operates over a wide voltage range of 6.5V to 45V (or 50V as per some specifications), making it suitable for use in various power supply environments.

• Low-Power Sleep Mode:

  • DRV8870DDAR includes a low-power sleep mode, which can be activated by setting both IN1 and IN2 inputs to low. This helps in reducing power consumption when the motor is not in use.

• Comprehensive Protection Features:

  • The device is protected against faults and short circuits, including under-voltage lockout (UVLO), over-current protection (OCP), and thermal shutdown (TSD). Once the fault condition is removed, the device automatically resumes normal operation.

• Small Footprint and Efficient Cooling:

  • DRV8870DDAR comes in a compact 8-pin SO PowerPAD or ESOP-8 package, with a footprint of 4.9 x 6.0 mm. The PowerPAD allows for efficient heat dissipation, ensuring stable operation even under high load conditions.

• Applications:

  • DRV8870DDAR is ideal for use in applications requiring precise motor control, such as printers, industrial automation equipment, home appliances, and other机电应用.

Summary:

DRV8870DDAR is a versatile and reliable brushed DC motor driver that offers a combination of high performance, low power consumption, and comprehensive protection features. Its compact package and efficient cooling design make it an ideal choice for use in a wide range of applications requiring precise motor control.