STK673-010 Просмотр технического описания (PDF) - SANYO -> Panasonic
Номер в каталоге
Компоненты Описание
производитель
STK673-010 Datasheet PDF : 16 Pages
| |||
STK673-010
Input/Output Terminals Functions of 5V System
Terminal name
No.
Clock
11
Mode A
12
Mode B
13
Mode C
18
TU
22
Hold
14
CW/CCW
15
Enable
16
Reset
17
MOI
20
Vref
10
Excitation Mode Table
Function
Basic clock for switching phase current of motor
Input frequency range: DC to 50kHz
Minimum pulse width: 10µµ
High level duty: 40 to 60%
Sets excitation mode
Sets excitation mode
Sets excitation mode
Sets excitation mode
Switches 2-3 phase excitation of step current to rectangular current
More effective in increasing torque than in lowering vibration of motor
Temporarily holds the motor in a state
Switches the rotational direction of the motor
Turns OFF all of the driving MOSFET
System reset Make sure to input a reset signal of 10 µµ or more
Monitors the number of revolution of the motor
Sets the peak value of the motor current set at 0.63V per 1A
Conditions upon Functioning
0 = Low, 1 = High
Rising edge in Mode C = 1
Rising and falling edge in Mode C = 0
See table listed below
See table listed below
See table listed below
See table listed below
0
1 = CW, 0 = CCW
0
0
Outputs 1 pulse of a high level signal per one
cycle of phase current
Maximum value 0.5×VCC2 (4A max)
Mode A
0
0
0
1
1
0
0
0
1
Input condition
Mode B Mode C
0
1
1
1
1
1
0
1
1
1
0
0
0
0
1
0
0
0
Excitation No.
Excitation Mode
TU
1
(1)
1
(2)
0
(3)
1
(4)
1
(5)
1
(6)
0
(7)
1
(8)
1
(9)
2-phase
2-3-phase
2-3-phase TU
W2-3-phase
2W2-3-phase
2-3-phase
2-3-phase TU
W2-3-phase
2W2-3-phase
As shown in the table, TU terminal is only effective for
Excitation Nos. (3) and (7).
Although the present hybrid IC is not damaged even when
TU = 0 is mistakenly input in Excitation, other than Exci-
tation Nos. (3) and (7), motor vibration or motor current
may increase.
* Timing charts for 3-phase stepping motor driver is illus-
trated on pages 10 to 14 for exemplary operations of
Enable Hold, CW/CCW for Excitation Nos. (1), (2), (3),
(4), (5) and (9), and Excitation No. (4).
Number of current steps
1
3
1
6
12
3
1
6
12
Number of clock pulse
per one cycle of phase
current
6
12
12
24
48
6
6
12
24
No. 5708—6/16
Share Link: 