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參數(shù)資料
| 型號(hào)： | LV8743V |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.8 A SWITCHING CONTROLLER, 440 kHz SWITCHING FREQ-MAX, PDSO44 |
| 封裝： | 0.275 INCH, SSOP-44 |
| 文件頁數(shù)： | 6/21頁 |
| 文件大?。?/td> | 268K |
| 代理商： | LV8743V |
LV8743V
No.A0612-14/21
(4) Constant-current control timing chart
When the MD pin is in the open state, the LV8743V's stepping motor constant-current control attenuates the current in
fast decay mode for 30% of the off time determined by the CR pin RC circuit, and in slow decay mode for 70% of that
time.
This mixed decay ratio can be adjusted to an appropriate value by applying an appropriate voltage to the MD pin from an
external circuit. If the MD pin is shorted to VCC, operation is locked in slow decay mode for this period, and if it is
shorted to ground, operation is locked in fast decay mode.
CR
OUTA
OUTB
30%
70%
CHARGE FAST
SLOW
MD pin level
Set current
Output current
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| LV8743V-TLM-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 10-35V Step w SW-Reg 2chBrush Motor Dr 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 |
| LV8746V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Bi-CMOS LSI PWM Constant-Current Control Stepping Motor Driver |
| LV8746VGEVB | 功能描述:電源管理IC開發(fā)工具 EVM FOR LV8746V RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LV8746V-MPB-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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 |
| LV8746V-TLM-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 9-35VSteppingMotor 2chBrush Motor Dr 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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