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參數(shù)資料
| 型號： | LB11850V |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Monolithic Digital IC For Fan Motor Single-Phase Full-Wave Pre-Driver with Speed Control Function |
| 中文描述： | 單片數(shù)字集成電路對風(fēng)扇電機(jī)單相全波預(yù)調(diào)速驅(qū)動(dòng)器控制功能 |
| 文件頁數(shù)： | 9/14頁 |
| 文件大?。?/td> | 128K |
| 代理商： | LB11850V |
LB11850V
No.A0608-9/14
3) Additional description of operations
The LB11850 forms a feedback loop inside the IC so that the FG period (motor speed) corresponding to the control
voltage is established by inputting the duty pulse.
The operation inside the IC is as follows. Pulse signals are created from the edges of the FG signals as shown in the
figure below, and a waveform with a pulse width which is determined by the CR time constants and which uses these
edges as a reference is generated by a one-shot multivibrator.
These pulse waveforms are integrated and the duty ratio of the pre-driver output is controlled as a control voltage.
Furthermore, by changing the pulse width as determined by the CR time constant, the VCTL versus speed slope can be
changed as shown in the speed control diagram of the previous section.
However, since the pulses used are determined by the CR time constant, the variations in CR are output as-is as the
speed control error.
LB11850V
Speed control block
FG
CONTROL
SIGNAL
CTL
CTL
signal
Closed
Feed-back
Loop
Pre-driver block
FG
EDGE pulse
RC pin
1 shot output
TRC(s) = 1.15RC
Slope due to
CR time
constant
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB11850VA | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Monolithic Digital IC For Fan Motor Single-Phase Full-Wave Pre-Driver with Speed Control Function |
| LB11850VA-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 |
| LB11850VA-MPB-H | 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 |
| LB11850VA-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 FAN 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 |
| LB11850VA-TLM-H | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BRUSHLESS 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 |
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