A4980集成電路（IC）的電機驅動器控制器規(guī)格書PDF中文資料

A4980屬于集成電路（IC）的電機驅動器控制器。由Allegro MicroSystems制造生產的A4980電機驅動器，控制器產品屬于電機驅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機電執(zhí)行器的電源。所實現的具體功能和特性集根據預期負載和預期應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 A4980 is a flexible microstepping motor driver with built-in translator for easy operation. It is a single-chip solution, designed to operate bipolar stepper motors in full-, half-, quarter- and sixteenth-step modes, at up to 28 V and ±1.4 A. The A4980 can be controlled by simple Step and Direction inputs, or through the SPI-compatible serial interface that also can be used to program many of the integrated features and to read diagnostic information.

Features and Benefits

? Peak motor current up to ±1.4 A, 28 V

? Low RDS(on)outputs, 0.5 Ωsource and sink, typical

? Automatic current decay mode detection/selection

? Mixed, Fast, and Slow current decay modes

? Synchronous rectification for low power dissipation

? Internal OVLO, UVLO, and Thermal Shutdown circuitry

? Crossover-current protection

? Short circuit, and open load diagnostics

? Hot and cold thermal warning

? Stall detect features

? SPI-compatible or simple Step and Direction motion control

? Highly configurable via SPI-compatible serial interface

Applications

? Automotive stepper motors

? Engine management

? Headlamp positioning