DRV10974

Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design DRV10974 SLVSDN2C – JANUARY 2018 – REVISED SEPTEMBER 2018 DRV10974 12-V, Three-Phase, Sensorless BLDC Motor Driver 1 Features 1 Input Voltage Range: 4.4 V to 18 V Total Driver H + L rDS(on): 750 mΩ (Typical) at TA = 25°C Phase Drive Current: 1-A Continuous (1.5-A Peak) 180° Sinusoidal Commutation for Optimal Acoustic Performance Resistor-Configurable Lead Angle Resistor-Configurable Current Limit Soft Start With Resistor-Configurable Acceleration Profile Built-In Current Sense to Eliminate External Current-Sense Resistor Proprietary Sensorless Control Without Motor Center Tap Simple User Interface: – One-Pin Configuration for Start-Up – PWM Input Designates Magnitude of Voltage Applied to Motor – Open-Drain FG Output Provides Speed Feedback – Pin for Forward and Reverse Control Fully Protected: – Motor-Lock Detect and Restart – Overcurrent, Short-Circuit, Overtemperature, Undervoltage 2 Applications White Goods Fans, Blowers, and Pumps BLDC Motor Module 3 Description The DRV10974 device is a three-phase sensorless motor driver with integrated power MOSFETs, which can provide continuous drive current up to 1 A (rms). The device is designed for cost-sensitive, low-noise, and low-external-component-count applications. The DRV10974 device uses a proprietary sensorless control scheme to provide dependable commutation. The 180° sinusoidal commutation...