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UC2717

Features: · Half-step and Full-step Capability· Bipolar Constant Current Motor Drive· Built-in Fast Recovery Schottky ommutating Diodes· Wide Range of Current Control 5-1000mA· Wide Voltage Range 10-45V· Designed for Unregulated Motor Supply oltage· Current Levels can be Selected in Steps r Varied...

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SeekIC No. : 004535449 Detail

UC2717: Features: · Half-step and Full-step Capability· Bipolar Constant Current Motor Drive· Built-in Fast Recovery Schottky ommutating Diodes· Wide Range of Current Control 5-1000mA· Wide Voltage Range 10...

UC2717 Data Sheet

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Part Number:
UC2717
Supply Ability:
5000

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Product Details

Description



Features:

· Half-step and Full-step Capability
· Bipolar Constant Current Motor Drive
· Built-in Fast Recovery Schottky ommutating Diodes
· Wide Range of Current Control 5-1000mA
· Wide Voltage Range 10-45V
· Designed for Unregulated Motor Supply oltage
· Current Levels can be Selected in Steps r Varied Continuously
· Thermal Overload Protection


Pinout

Connection Diagram


Specifications

Voltage
Logic Supply, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
Output Supply, VM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45V
Input Voltage
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) . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . ±1A
Junction Temperature, TJ. . . . . . . . . . . . . . . . . . . . . . . . . .  .  . +150°C
Storage Temperature Range, TS . . . . . . . . . . . . . . . -55°C to +150°C

Note 1: All voltages are with respect to ground, Pins ,5, 12, 13. Pin numbers refer to DIL-16 package. Currents re positive into, negative out of the specified terminal.
Note 2: Consult Packaging Section of Databook for information n thermal limitations and considerations of ackage.


Description

The UC3717 has been designed to control and drive the current in ne winding of a bipolar stepper motor. The circuit consists of an LSTTL- ompatible logic input, a current sensor, a monostable and an utput stage with built-in protection diodes. Two UC3717s and a few xternal components form a complete control and drive unit for LSTTL r micro-processor controlled stepper motor systems.

The UC1717 is characterized for operation over the full military temperature ange of -55°C to +125°C, the UC2717 is characterized for 25°C to +85°C, and the UC3717 is characterized for 0°C to +70°C.




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