A4984集成電路（IC）的電機驅(qū)動器控制器規(guī)格書PDF中文資料

A4984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A4984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。

Description

The A4984 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and eighth-step modes. Step modes are selectable by MSx logic inputs. It has an output drive capacity of up to 35 V and ±2 A. The A4984 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.

Features and Benefits

? Low RDS(ON) outputs

? Automatic current decay mode detection/selection

? Mixed and Slow current decay modes

? Synchronous rectification for low power dissipation

? Internal UVLO

? Crossover-current protection

? 3.3 and 5 V compatible logic supply

? Thin profile QFN and TSSOP packages

? Thermal shutdown circuitry

? Short-to-ground protection

? Shorted load protection

? Low current Sleep mode, < 10 μA

? No smoke no fire (NSNF) compliance (ET package)