DRV10987 - Texas Instruments

DRV10987 12-V to 24-V 3-Phase Sensorless BLDC Motor Driver

The DRV10987 device is a 3-phase sensorless 180° sinusodial motor driver with integrated power MOSFETs, which can provide continuous drive current up to 2 A. The device is specifically designed for cost-sensitive, low-noise, low-external-componentcount fan and pump applications.™ The DRV10987 device delivers current to the motor with supply voltage as low as.

Features

•1 Operation Voltage Range:
  – Motor Operation, 6.2 V to 28 V
• Total Driver H + L rDS(on)
  – 250 mΩ at TA = 25°C
• Drive Current: 2-A Continuous Winding Current (3-A Peak)
• Sensorless Sinusoidal 180° Commutation Scheme
• Configurable Output PWM Slew Rate and Frequency for EMI Management
• Initial Position-Detect Algorithm to Avoid Back- Spin During Start-Up
• No External Sense Resistor Required
• Flexible User Interface Options:
  – I2C Interface: Access Registers for Command and Feedback
  – Dedicated SPEED Pin: Accepts Either Analog or PWM Input
  – Dedicated FG Pin: Provides TACH Feedback
  – Spin-.