UC3717A

更新时间： 2024-11-20 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
9页	457K
描述
Stepper Motor Drive Circuit

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UC3717A 数据手册

UC3717A

Stepper Motor Drive Circuit

FEATURES

DESCRIPTION

•

Full-Step, Half-Step and Micro-Step

Capability

The UC3717A is an improved version of the UC3717, used to switch

drive the current in one winding of a bipolar stepper motor. The

UC3717A has been modified to supply higher winding current, more

reliable thermal protection, and improved efficiency by providing inte-

grated bootstrap circuitry to lower recirculation saturation voltages.

The diagram shown below presents the building blocks of the

UC3717A. Included are an LS-TTL compatible logic input, a current

sensor, a monostable, a thermal shutdown network, and an H-bridge

output stage. The output stage features built-in fast recovery com-

mutating diodes and integrated bootstrap pull up. Two UC3717As

and a few external components form a complete control and drive

unit for LS-TTL or micro-processor controlled stepper motor systems.

•

Bipolar Output Current up to 1A

Wide Range of Motor Supply Voltage

10-46V

•

Low Saturation Voltage with Integrated

Bootstrap

Built-In Fast Recovery Commutating

Diodes

Current Levels Selected in Steps or Varied

Continuously

The UC3717A is characterized for operation over the temperature

range of 0°C to +70°C.

Thermal Protection with Soft Intervention

ABSOLUTE MAXIMUM RATINGS (Note 1)

Voltage

Logic Supply, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V

Output Supply, Vm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V

Input Voltage

Note 1: All voltages are with respect to ground, Pins 4,

5, 12, 13. Currents are positive into, negative out of the

specified terminal. Pin numbers refer to DIL-16 pack-

age.

Consult Packaging Section of Databook for thermal limi-

tations and considerations of package.

Logic Inputs (Pins 7, 8, 9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V

Analog Input (Pin 10). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC

Reference Input (Pin 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V

Input Current

Logic Inputs (Pins 7, 8, 9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10mA

Analog Inputs (Pins 10, 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . -10mA

Output Current (Pins 1, 15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2A

Junction Temperature, TJ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C

Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . -55°C to +150°C

BLOCK DIAGRAM

4/97

12 3 4 5 6 7...9

中文翻译

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UC3717A 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
UC3717	TI	功能相似	Stepper Motor Drive Circuit

与UC3717A相关器件

型号	品牌	获取价格	描述	数据表
UC3717A_9	TI	获取价格	Stepper Motor Drive Circuit
UC3717AJ	TI	获取价格	暂无描述
UC3717AN	TI	获取价格	Stepper Motor Drive Circuit
UC3717ANE	TI	获取价格	Stepper Motor Drive Circuit
UC3717ANG4	TI	获取价格	Stepper Motor Drive Circuit
UC3717AQ	TI	获取价格	Stepper Motor Drive Circuit
UC3717AQG3	TI	获取价格	Stepper Motor Drive Circuit
UC3717AQTR	TI	获取价格	Stepper Motor Drive Circuit
UC3717AQTRG3	TI	获取价格	Stepper Motor Drive Circuit
UC3717J	TI	获取价格	Stepper Motor Drive Circuit

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