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参数资料
| 型号： | LB11961V |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1 A, PDSO16 |
| 封装： | 0.225 INCH, SSOP-16 |
| 文件页数： | 6/7页 |
| 文件大小： | 72K |
| 代理商： | LB11961V |
LB11961V
No.8794-6/7
Control Timing Chart
1. Set minimum speed mode
A VTH voltage level is generated when the thermistor detects the set temperature. At low temperatures, the fan
motor turns at the lowest speed, which is set with the RMI pin. The LB11961V compares the CPWM oscillator
voltage with the RMI pin voltage and sets the duty for the lowest drive state.
2. High speed
low speed mode
The PWM signal is controlled by comparing the CPWM oscillation voltage that cycles between 1.2V and 3. 8V
and the VTH voltage.
When the VTH voltage is lower, the high and low side transistors are turned on, and when the VTH voltage is
higher, the high side transistor is turned off and the coil current is regenerated through the low side transistor.
Thus the output on duty increases as the VTH voltage becomes lower, the coil current increases, and the motor
speed increases.
Rotation speed feedback is provided by the FG output.
3. Full-speed mode
The LB11961V switches to full-speed mode above a certain temperature.
4. Thermistor removed mode
If the thermistor is removed, the VTH input voltage will rise. However, the output will go to full drive at 100%
and the motor will run at full speed.
Thermistor removed
VCC
CPWM
3.6V
2.0V
PWM control variable speed mode
Full speed mode
0V
12V
f = 25kHz (CP=100pF)
Low on duty
High on duty
FG
Set minimum
speed
RMI voltage
Internal lowest speed setting voltage
(VCC × 30%)
(VCC × 16%)
(VCC × 28%)
High
temperature
Low
temperature
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB11961V-MPB-E | 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| LB11961V-MPB-H | 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| LB11961V-TLM-E | 功能描述:马达/运动/点火控制器和驱动器 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| LB11961V-TLM-H | 功能描述:马达/运动/点火控制器和驱动器 PWM MOTOR PREDRIVER RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| LB11961-W-AH | 制造商:ON Semiconductor 功能描述:SINGLE PHASE MOTOR DRIVER - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / SINGLE PHASE MOTOR DRIVER 制造商:ON Semiconductor 功能描述:ON.HSSOP14.REEL.SPQ2000.MOQ2000/MPQ2000.LINEAR IC |
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