A5947GETTR-T集成电路（IC）的电机驱动器控制器规格书PDF中文资料

A5947GETTR-T属于集成电路（IC）的电机驱动器控制器。由Allegro MicroSystems制造生产的A5947GETTR-T电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。

FEATURES AND BENEFITS

Speed curve configuration via EEPROM

• I2C serial port

• Sinusoidal modulation for reduced audible noise and

low vibration

• Sensorless (no Hall sensors required)

• Low RDS(ON) power MOSFETs

• 3.3 V / 20 mA linear regulator

• PWM or analog speed input

• FG speed output

• Slew rate control

• Lock detection

• Soft start

• Low power standby mode

• Overcurrent protection

• Overvoltage protection

DESCRIPTION

The A5947G three phase motor driver IC incorporates sensorless

sinusoidal drive to minimize vibration for a wide variety of

fan applications. Sensorless control eliminates the requirement

for Hall sensors.

A flexible closed-loop speed control system is integrated into

the IC. EEPROM is used to tailor the common functions of the

fan speed curve to a specific application. This eliminates the

requirement for a microprocessor-based system and minimizes

programming requirements.

The A5947G is available in a 28-contact 5 mm × 5 mm QFN

with exposed thermal pad (suffix ET) and a 20-lead TSSOP

with exposed thermal pad (suffix LP).