A5947G集成電路（IC）的電機驅(qū)動器控制器規(guī)格書PDF中文資料

A5947G屬于集成電路（IC）的電機驅(qū)動器控制器。由Allegro MicroSystems制造生產(chǎn)的A5947G電機驅(qū)動器，控制器產(chǎn)品屬于電機驅(qū)動器和控制器電源管理集成電路 (PMIC) 系列，可用于控制或操作從某電源施加到電機或相關(guān)機電執(zhí)行器的電源。所實現(xiàn)的具體功能和特性集根據(jù)預(yù)期負(fù)載和預(yù)期應(yīng)用的特性有很大差異，范圍從用于有刷電機的簡單開環(huán)速度控制到基于步進電機的高級閉環(huán)運動控制。

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).