UC3770A

更新时间： 2024-09-14 22:41:47

品牌	Logo	应用领域
德州仪器 - TI		电机驱动
页数	文件大小	规格书
3页	74K
描述
High Performance Stepper Motor Drive Circuit

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UC3770A 数据手册

UC3770A

UC3770B

High Performance Stepper Motor Drive Circuit

FEATURES

DESCRIPTION

•

Full-Step, Half-Step and Micro-Step

Capability.

The UC3770A and UC3770B are high-performance full bridge driv-

ers that offer higher current and lower saturation voltage than the

UC3717 and the UC3770. Included in these devices are LS-TTL

compatible logic inputs, current sense, monostable, thermal shut-

down, and a power H-bridge output stage. Two UC3770As or

UC3770Bs and a few external components form a complete micro-

processor-controllable stepper motor power system.

•

Bipolar Output Current up to 2A.

Wide Range of Motor Supply Voltage:

10–50V

•

Low Saturation Voltage

Unlike the UC3717, the UC3770A and the UC3770B require exter-

nal high-side clamp diodes. The UC3770A and UC3770B are

identical in all regards except for the current sense thresholds.

Thresholds for the UC3770A are identical to those of the older

UC3717 permitting drop-in replacement in applications where

high-side diodes are not required. Thresholds for the UC3770B are

tailored for half stepping applications where 50%, 71%, and 100%

current levels are desirable.

Wide Range of Current Control: 5mA–2A.

Current Levels Selected in Steps or Varied

Continuously.

•

Thermal Protection and Soft Intervention.

The UC3770A and UC3770B are specified for operation from 0°C

to 70°C ambient.

BLOCK DIAGRAM

UDG-92039-1

SLUS403A - FEBRUARY 2000

12 3

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UC3770A 替代型号

型号	品牌	替代类型	描述	数据表
DRV8829	TI	功能相似	H-BRIDGE MOTOR DRIVER IC

与UC3770A相关器件

型号	品牌	获取价格	描述	数据表
UC3770A_13	TI	获取价格	High Performance Stepper Motor Drive Circuit
UC3770AJ	ETC	获取价格	Stepper Motor Controller/Driver
UC3770AN	TI	获取价格	High Performance Stepper Motor Drive Circuit
UC3770ANG4	TI	获取价格	High Performance Stepper Motor Drive Circuit
UC3770AQ	TI	获取价格	High Performance Stepper Motor Drive Circuit
UC3770AQTR	TI	获取价格	High Performance Stepper Motor Drive Circuit
UC3770B	TI	获取价格	High Performance Stepper Motor Drive Circuit
UC3770BJ	ETC	获取价格	MOTOR CONTROLLER
UC3770BN	TI	获取价格	High Performance Stepper Motor Drive Circuit
UC3770BNG4	TI	获取价格	High Performance Stepper Motor Drive Circuit