STK672-340-E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

STK672-340-E屬于集成電路（IC）的電機(jī)驅(qū)動器控制器。由安森美半導(dǎo)體公司制造生產(chǎn)的STK672-340-E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。

Overview

The STK672-340-E is a unipolar fixed-current chopper type 2-phase stepping motor driver hybrid IC. It features power MOSFETs in the output stage and a built-in phase signal distribution IC. The incorporation of a phase distribution IC allows the STK672-340-E to control the speed of the motor based on the frequency of an external input clock signal. It supports two types of excitation for motor control: 2-phase excitation and 1-2 phase excitation. It also provides a function for switching the motor direction.

Features

? The motor speed can be controlled by the frequency of an external clock signal (the CLOCK pin signal).

? The excitation type is switched according to the state (low or high) of the MODE pin. The mode is set to 2-phase or 1-2 phase excitation on the rising edge of the clock signal.

? A motor direction switching pin (the CWB pin) is provided.

? Supports Schmitt input for 2.5V High level input.

? The motor current can be set by changing the Vref pin voltage. Since a 0.14Ω current detection resistor is built in, a current of 1A is set for each 0.14V of applied voltage.

? The input frequency range for the clock signal used for motor speed control is 0 to 50kHz.

? Supply voltage ranges: VCC = 10 to 42V, VDD = 5.0V ±5

? This IC supports motor operating currents of up to 2.2A at Tc = 105°C, and of up to 3.6A at Tc = 25°C.

? Provides a function that, during clock input, forces all MOSFET devices to the off state when the ENABLE pin is set low, and then, when ENABLE is set high, resumes operation continuing with the prior excitation timing.

Applications

? Two-phase stepping motor drive in send/receive facsimile units.

? Paper feed in copiers, industrial robots, and other applications that require 2-phase stepping motor drive.