A3958集成電路（IC）的電機(jī)驅(qū)動器控制器規(guī)格書PDF中文資料

A3958屬于集成電路（IC）的電機(jī)驅(qū)動器控制器。由Allegro MicroSystems制造生產(chǎn)的A3958電機(jī)驅(qū)動器，控制器產(chǎn)品屬于電機(jī)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(jī)或相關(guān)機(jī)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(jī)的簡單開環(huán)速度控制到基于步進(jìn)電機(jī)的高級閉環(huán)運動控制。

Designed for pulse-width modulated (PWM) current control of dc motors, the A3958SB and A3958SLB are capable of continuous output currents to ±2 A and operating voltages to 50 V. Internal fixed off time PWM current-control timing circuitry can be programmed via a serial interface to operate in slow, fast, and mixed current-decay modes.

FEATURES

±2 A, 50 V Continuous Output Rating

Low rDS(on) Outputs (270 mΩ, Typical)

Programmable Mixed, Fast, and Slow Current-Decay Modes

Serial Interface Controls Chip Functions

Synchronous Rectification for Low Power Dissipation

Internal UVLO and Thermal-Shutdown Circuitry

Crossover-Current Protection