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參數(shù)資料
| 型號(hào)： | LB11850VA |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | AC MOTOR CONTROLLER, PDSO24 |
| 封裝： | 0.225 INCH, SSOP-24 |
| 文件頁數(shù)： | 14/14頁 |
| 文件大小： | 116K |
| 代理商： | LB11850VA |
LB11850VA
No.A0609-9/14
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.
LB11850VA
Speed control block
FG
CONTROL
SIGNAL
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LB11852FV | AC MOTOR CONTROLLER, 0.02 A, PDSO20 |
| LB11884 | BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO48 |
| LB11885 | BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO48 |
| LB11947 | BRUSH DC MOTOR CONTROLLER, 1.75 A, PDIP28 |
| LB11948T | STEPPER MOTOR CONTROLLER, 0.5 A, PDSO30 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LB11851FA-AH | 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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