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參數(shù)資料
| 型號(hào)： | LV8772 |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類(lèi)： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, DIP28 |
| 封裝： | DIP-28 |
| 文件頁(yè)數(shù)： | 17/17頁(yè) |
| 文件大?。?/td> | 246K |
| 代理商： | LV8772 |
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LV8772
No.A1975-9/17
Example : At VREF of 1.5V, a reference voltage setting of 100% [(ATT1, ATT2) = (L, L)] and an RF resistance of
0.22
Ω, the output current is set as shown below.
IOUT = 1.5V/5 × 100%/0.22Ω = 1.36A
If, in this state, (ATT1, ATT2) is set to (H, H), IOUT will be as follows :
IOUT = 1.36A × 20% = 272mA
In this way, the output current is attenuated when the motor holding current is supplied so that power can
be conserved.
(5) Blanking period
If, when exercising PWM constant-current chopping control over the motor current, the mode is switched from decay
to charge, the recovery current of the parasitic diode may flow to the current sensing resistance, causing noise to be
carried on the current sensing resistance pin, and this may result in erroneous detection. To prevent this erroneous
detection, a blanking period is provided to prevent the noise occurring during mode switching from being received.
During this period, the mode is not switched from charge to decay even if noise is carried on the current sensing
resistance pin.
This IC is the blanking time is fixed at approximately 1
μs.
(6) Reset function
RST
Operating mode
Low
Normal operation
High
Reset state
When the RST pin is set to High, the excitation position of the output is forcibly set to the initial state, and the MONI
output is placed in the ON state. When RST is then set to Low, the excitation position is advanced by the next STEP
input.
RST
RESET
0%
STEP
MONI
1ch output
2ch output
Initial state
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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(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 MOTOR DRIVER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)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(kāi)發(fā)工具 EVABOARD FOR LV8772 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| LV8773 | 制造商:SANYO 制造商全稱(chēng):Sanyo Semicon Device 功能描述:PWM Constant-Current Control Stepping Motor Driver |
| LV8773-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 PRINTER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)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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