A3906SESTR-T集成電路（IC）的電機驅(qū)動器控制器規(guī)格書PDF中文資料

A3906SESTR-T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A3906SESTR-T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

Designed for pulse width modulated (PWM) control of low voltage stepper motors, and single and dual DC motors, the A3906 is capable of output currents up to 1 A per channel and operating voltages from 2.5 to 9 V.

The A3906 has an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor. An overcurrent output flag is provided that notifies the user when the current in the motor winding reaches the peak current determined by the sense resistor. The fault output does not affect driver operation.

Features and Benefits

? 2.5 to 9 V operation

? Internal PWM current limit control

? Synchronous rectification for reduced power dissipation

? Peak current output flag

? Undervoltage lockout

? Low RDS(on) outputs

? Small package

? Brake mode for DC motors

? Sleep function

? Crossover-current protection

? Thermal shutdown