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E-TEA3718SFPTR 数据表(PDF) 1 Page - STMicroelectronics

部件名 E-TEA3718SFPTR
功能描述  Stepper motor driver
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

E-TEA3718SFPTR 数据表(HTML) 1 Page - STMicroelectronics

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January 2009
Rev 2
1/26
26
TEA3718
Stepper motor driver
Features
Half-step and full-step mode
Bipolar drive of stepper motor for maximum
motor performance
Built-in protection diodes
Wide range of current control 5 to 1500 mA
Wide voltage range 10 to 50 V
Designed for unstabilized motor supply voltage
Current levels can be selected insteps or
varied continuously
Thermal overload protection
Alarm output or pre-alarm output
Applications
The TEA3718 is a bipolar monolithic integrated
circuit intended to control and drive the current in
one winding of a bipolar stepper motor.
Description
The circuits consist of an LS-TTL compatible logic
input, a current sensor, a monostable and an
output stage with built-in protection diodes. Two
TEA3718 ICs and a few external components
form a complete control and drive unit for LS-TTL
or microprocessor-controlled stepper motor
systems.
Figure 1.
Block diagram
TM: Multiwatt is a trademark of STMicroelectronics
Table 1. Device summary
Order code
Package
E-TEA3718SDP
Power DIP
E-TEA3718DP
E-TEA3718SFP
SO20
E-TEA3718SFPTR
SO20 (tape and reel)
E-TEA3718SP
Multiwatt™ 15
Power DIP 12+2+2
Multiwatt™ 15
SO20
Motor winding
OUT A
REFERENCE
COMPARATOR
PULSE TIME
IN0
IN1
INPUT
TEA3718
SENSE
OUT B
ALARM
PRE-ALARM
RESISTOR
PHASE
(TEA3718SP)
(TEA3718SFP)
www.st.com


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