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參數(shù)資料
| 型號： | LV8741V |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1.75 A, PDSO44 |
| 封裝： | 0.275 INCH, SSOP-44 |
| 文件頁數(shù)： | 9/25頁 |
| 文件大?。?/td> | 204K |
| 代理商： | LV8741V |
LV8741V
No.A0814-17/25
FAST
SLOW
CHARGE
FAST
SLOW
CHARGE
Current mode
fchop
Coil current
STEP
Set current
Forced CHARGE
section
Forced CHARGE
section
FAST
SLOW
FAST
SLOW
CHARGE
Current mode
fchop
Coil current
STEP
Set current
Forced CHARGE
section
CHARGE
(10) Current control operation specification
(Sine wave increasing direction)
(Sine wave decreasing direction)
In each current mode, the operation sequence is as described below :
At rise of chopping frequency, the CHARGE mode begins.(The section in which the CHARGE mode is forced
regardless of the magnitude of the coil current (ICOIL) and set current (IREF) exists for 1/16 of one chopping cycle.)
The coil current (ICOIL) and set current (IREF) are compared in this forced CHARGE section.
When (ICOIL<IREF) state exists in the forced CHARGE section ;
CHARGE mode up to ICOIL
≥ IREF, then followed by changeover to the SLOW DECAY mode, and finally
by the FAST DECAY mode for the 1/16 portion of one chopping cycle.
When (ICOIL<IREF) state does not exist in the forced CHARGE section;
The FAST DECAY mode begins. The coil current is attenuated in the FAST DECAY mode till one cycle of
chopping is over.
Above operations are repeated. Normally, the SLOW (+FAST) DECAY mode continues in the sine wave increasing
direction, then entering the FAST DECAY mode till the current is attenuated to the set level and followed by the SLOW
DECAY mode.
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| LV8741V_0712 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PWM Current Control Stepping Motor Driver |
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| LV8741VL-TLM-E | 功能描述:馬達(dá)/運(yùn)動/點(diǎn)火控制器和驅(qū)動器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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