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參數(shù)資料
| 型號(hào)： | CS3717AGNF16 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1 A, PDIP16 |
| 封裝： | 0.300 INCH, PLASTIC, MS-001, DIP-16 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 72K |
| 代理商： | CS3717AGNF16 |
4
Control of the motor
The stepper motor can rotate in either direction according
to the sequence of the input signals. It is possible to
obtain a full step, a half step and quarter step operation.
Full step operation
Both windings of the stepper motor are energized all the
time with the same current IMA = IMB.
IN0 and IN1 remain fixed at whatever torque value is
required.
Calling
the condition with winding A energized in one
direction and A in the other direction, the sequence for
full step rotation is:
AB
→ B→→Aetc.
B
AB
A
Typical Performance Characteristics
Source Saturation Voltage vs. Output Current
(Conduction Period)
Source Saturation Voltage vs. Output Current
(Recirculation Period)
1
2
3
4
V
CE
SA
T
(V)
0.2
0.4
0.6
0.8
I (A)
0
1
2
3
4
V
CE
SA
T
(V)
0.2
0.4
0.6
0.8
I (A)
0
Comparator Threshold vs. Junction Temperature
Sink Saturation Voltage vs. Output Current
1
2
3
4
V
SA
T
(V)
0.2
0.4
0.6
0.8
I (A)
0
V
CX
(%)
40
160
TJ (C)
0
20
40
60
80
100
60
80 100 120 140
20
The application diagram shows a typical application in
which two CS3717A's control a two phase bipolar stepper
motor.
Programming
The amplitude of the current flowing in the motor wind-
ing is controlled by the logic inputs IN0 and IN1. The
truth table (page 3) shows three current levels and an off
state. A high level on the “Direction” logic input sets the
direction of that current from OUTA to OUTB; a low level
from OUTB to OUTA.
It is recommended that unused inputs are tied to VCC or
(Gnd) as appropriate to avoid noise problems.
The current levels can be varied continuously by chang-
ing VREF.
Application Information
CS3717A
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