UCC3626PW屬于集成電路（IC）的電機(jī)驅(qū)動(dòng)器控制器。由美國(guó)德州儀器公司制造生產(chǎn)的UCC3626PW電機(jī)驅(qū)動(dòng)器，控制器產(chǎn)品屬于電機(jī)驅(qū)動(dòng)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(shí)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(jiǎn)單開環(huán)速度控制到基于步進(jìn)電機(jī)的高級(jí)閉環(huán)運(yùn)動(dòng)控制。

FEATURES

Two-Quadrant and Four-Quadrant Operation

Integrated Absolute Value Current Amplifier

Pulse-by-Pulse and Average Current Sensing

Accurate, Variable Duty-Cycle Tachometer

Output

Trimmed Precision Reference

Precision Oscillator

Direction Output

DESCRIPTION

The UCC3626 motor controller device combines

many of the functions required to design a

high-performance, two- or four-quadrant, threephase,

brushless dc motor controller into one

package. Rotor position inputs are decoded to

provide six outputs that control an external power

stage. A precision triangle oscillator and latched

comparator provide PWM motor control in either

voltage- or current-mode configurations. The

oscillator is easily synchronized to an external

master clock source via the SYNCH input.

Additionally, a QUAD select input configures the

chip to modulate either the low-side switches only,

or both upper and lower switches, allowing the

user to minimize switching losses in less

demanding two-quadrant applications.

The device includes a differential current-sense

amplifier and absolute-value circuit which provide

an accurate reconstruction of motor current,

useful for pulse-by-pulse overcurrent protection,

as well as closing a current control loop. A

precision tachometer is also provided for

implementing closed-loop speed control. The

TACH_OUT signal is a variable duty-cycle,

frequency output, which can be used directly for

digital control or filtered to provide an analog

feedback signal. Other features include COAST,

BRAKE, and DIR_IN commands, along with a

direction output, DIR_OUT.