Overview

The STK672-642A-E is a hybrid IC for use as a unipolar, 2-phase stepping motor driver with PWM current control.

Features

• Built-in overcurrent detection function (output current OFF).

• Built-in overheat detection function (output current OFF).

• If either over-current or overheat detection function is activated,

the FAULT signal (active low) is output.

• Built-in power on reset function.

• The motor speed is controlled by the frequency of

an external clock signal.

• 2 phase or 1-2 phase excitation switching function.

• Using either or both edges of the clock signal switching function.

• Phase is maintained even when the excitation mode is switched.

• Rotational direction switching function.

• Supports schmitt input for 2.5V high level input.

• Incorporating a current detection resistor

(0.089Ω: resistor tolerance ±2), motor current

can be set using two external resistors.

• The ENABLE pin can be used to cut output current

while maintaining the excitation mode.

• With a wide current setting range, power consumption

can be reduced during standby.

• No motor sound is generated during hold mode due to

external excitation current control.

• Miniature package (provides pin compatibility with STK672-640A-E)

Applications

• Office photocopiers, printers, etc.

STK672-642A-E属于集成电路（IC） > 电机驱动器，控制器。安森美半导体公司制造生产的STK672-642A-E电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。