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參數(shù)資料
| 型號(hào)： | UC3717QTR |
| 英文描述： | DMOS dual full bridge driver |
| 中文描述： | 步進(jìn)電機(jī)控制器/驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 547K |
| 代理商： | UC3717QTR |
7/95
Half-step and Full-step Capability
Bipolar Constant Current Motor Drive
Built-in Fast Recovery Schottky
Commutating Diodes
Wide Range of Current Control 5-1000mA
Wide Voltage Range 10-45V
Designed for Unregulated Motor Supply
Voltage
Current Levels can be Selected in Steps
or Varied Continuously
Thermal Overload Protection
Stepper Motor Drive Circuit
The UC3717 has been designed to control and drive the current in
one winding of a bipolar stepper motor. The circuit consists of an LS-
TTL-compatible logic input, a current sensor, a monostable and an
output stage with built-in protection diodes. Two UC3717s and a few
external components form a complete control and drive unit for LS-
TTL or micro-processor controlled stepper motor systems.
The UC1717 is characterized for operation over the full military tem-
perature range 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.
UC1717
UC2717
UC3717
BLOCK DIAGRAM
FEATURES
DESCRIPTION
Voltage
Logic Supply, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Output Supply, V
M
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Storage Temperature Range, T
S
. . . . . . . . . . . . . . . . . . -55°C to +150°C
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Note 1: All voltages are with respect to ground, Pins
4,5, 12, 13. Pin numbers refer to DIL-16 package. Cur-
rents are positive into, negative out of the specified ter-
minal.
Note 2: Consult Packaging Section of Databook for in-
formation on thermal limitations and considerations of
package.
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