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參數(shù)資料
| 型號： | UPD168110 |
| 廠商： | NEC Corp. |
| 英文描述： | MICROSTEP DRIVER FOR DRIVING CAMERA LENS |
| 中文描述： | 微步驅(qū)動驅(qū)動光圈鏡頭 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 200K |
| 代理商： | UPD168110 |
Data Sheet S15840EJ2V0DS
12
μ
PD168110
Power save mode (valid only in microstep driving mode)
When PS = “H” and STOP = “H”, the motor advances to the position of MOB output = “L” and then the output
goes to a Hi-Z state.
The internal circuitry is stopped as much as possible and the standby mode is set. The power save mode is
released when PS = “L” and STOP = “L”.
STOP
Operation Mode
L
Normal mode
H
Power save mode (only when STOP = “H”)
Caution Inputting PS = “H” and STOP = “L” is prohibited.
Setting output enable
When OE = “H”, the motor is driven (output excitation status). Be sure to set OE to “H” to drive the motor.
STOP
Operation Mode
L
Output Hi-Z
H
Enable mode
Selecting two-phase excitation/microstep driving mode
The MODE pin can be used to select the two-phase excitation or microstep driving mode. When MODE = “H”,
the microstep driving mode is selected. When MODE = “L”, the two-phase excitation mode (both ch 1 and ch 2
are driven at +100% or –100%) is selected.
The
μ
PD168110 is initialized immediately after a RESET operation,
so excitation is started from the position at which the output current of ch 1 is 100% and the output current of ch
2 is 0% in the microstep driving mode, and from the position at which the output currents of both ch 1 and ch 2
are +100% in the two-phase excitation driving mode.
If the mode is changed from the microstep to the two-phase, the position of the microstep mode is retained until
CLK is input. When the first CLK is input, pulse output is started, the operation skips to the two-phase position of
the next quadrant, and driving is started.
MODE
Operation Mode
L
2-phase excitation
H
Microstep driving
Concept of switching operation mode
from microstep to 2-phase excitation
Microstep stop position
(example 1)
Microstep stop
position
(example 2)
2-phase
excitation stop
position
Skips to next quadrant
(3)
(2)
(1)
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