UCC2626

更新时间： 2024-11-29 22:41:47

品牌	Logo	应用领域
德州仪器 - TI		电机控制器
页数	文件大小	规格书
15页	210K
描述
Brushless DC Motor Controller

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中文翻译

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数据手册
替代型号

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UCC2626 数据手册

application

INFO

UCC2626

UCC3626

available

PRELIMINARY

Brushless DC Motor Controller

FEATURES

DESCRIPTION

• Two Quadrant and Four Quadrant

The UCC3626 motor controller IC combines many of the functions re-

quired to design a high performance, two or four quadrant, 3-phase,

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 mo-

tor control in either voltage or current mode configurations. The oscilla-

tor 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 de-

manding two quadrant applications.

Operation

• Integrated Absolute Value Current

Amplifier

• Pulse-by-Pulse and Average Current

Sensing

• Accurate, Variable Duty Cycle

Tachometer Output

• Trimmed Precision Reference

• Precision Oscillator

The chip includes a differential current sense amplifier and absolute

value circuit which provide an accurate reconstruction of motor current,

useful for pulse by pulse over current protection as well as closing a

current control loop. A precision tachometer is also provided for imple-

menting closed loop speed control. The TACH_OUT signal is a variable

duty cycle, frequency output which can be used directly for digital con-

trol or filtered to provide an analog feedback signal. Other features in-

clude COAST, BRAKE, and DIR_IN commands along with a direction

output, DIR_OUT.

• Direction Output

BLOCK DIAGRAM

28 VDD

QUAD 20

5 VOLT

REFERENCE

BRAKE 19

COAST 18

DIR_IN 21

HALLA 15

HALLB 16

VREF

1.75V

27 AHI

25 BHI

23 CHI

DIRECTION

SELECT

HALL

DECODER

HALLC 17

ALOW

DIRECTION

DETECTOR

DIR_OUT

EDGE

DETECTOR

24 BLOW

22 CLOW

PWM_NI 14

PWM_I 13

PWM COMPARATOR

OSCILLATOR

R • C

SYNCH

TACH_OUT

OVER-CURRENT

COMPARATOR

C_TACH

R_TACH

OC_REF 12

IOUT 11

ONE SHOT

PWM LOGIC

SENSE AMPLIFIER

GND

SNS_NI

SNS_I 10

UDG-97173

04/99

12 3 4 5 6 7...15

中文翻译

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UCC2626 替代型号

型号	品牌	替代类型	描述	数据表
UCC3626	TI	功能相似	Brushless DC Motor Controller

与UCC2626相关器件

型号	品牌	获取价格	描述	数据表
UCC2626DW	TI	获取价格	BRUSHLESS DC MOTOR CONTROLLER
UCC2626DWG4	TI	获取价格	BRUSHLESS ESS DC MOTOR CONTROLLER
UCC2626DWTR	TI	获取价格	BRUSHLESS DC MOTOR CONTROLLER, 0.2A, PDSO28, SOIC-28
UCC2626N	TI	获取价格	BRUSHLESS DC MOTOR CONTROLLER
UCC2626PW	TI	获取价格	BRUSHLESS DC MOTOR CONTROLLER
UCC2626PWG4	TI	获取价格	BRUSHLESS ESS DC MOTOR CONTROLLER
UCC2626PWTR	TI	获取价格	BRUSHLESS DC MOTOR CONTROLLER, 0.2A, PDSO28, TSSOP-28
UCC27200	TI	获取价格	120-V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver
UCC27200_07	TI	获取价格	120-V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver
UCC27200_12	TI	获取价格	120-V Boot, 3-A Peak, High Frequency, High-Side/Low-Side Driver

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