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參數(shù)資料
| 型號： | LV8772 |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, DIP28 |
| 封裝： | DIP-28 |
| 文件頁數(shù)： | 6/17頁 |
| 文件大?。?/td> | 246K |
| 代理商： | LV8772 |
LV8772
No.A1975-14/17
(11) 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. (In the time defined as the “blanking time,” the CHARGE
mode is forced regardless of the magnitude of the coil current (ICOIL) and set current (IREF).)
The coil current (ICOIL) and set current (IREF) are compared in this blanking time.
When (ICOIL < IREF) state exists ;
The CHARGE mode up to ICOIL
≥ IREF, then followed by changeover to the SLOW DECAY mode, and
finally by the FAST DECAY mode for approximately 1
μs.
When (ICOIL < IREF) state does not exist ;
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.
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
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LV8772-E | 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 MOTOR DRIVER 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 |
| LV8772GEVB | 功能描述:電源管理IC開發(fā)工具 EVABOARD FOR LV8772 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LV8773 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PWM Constant-Current Control Stepping Motor Driver |
| LV8773-E | 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 PRINTER 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 |
| LV8773-E | 制造商:ON Semiconductor 功能描述:OPTOCOUPLERS; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No ;RoHS Compliant: No |
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