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参数资料
| 型号： | LV8804V |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 1.2 A, PDSO36 |
| 封装： | 0.275 INCH, SSOP-36 |
| 文件页数： | 8/10页 |
| 文件大小： | 112K |
| 代理商： | LV8804V |
LV8804V
No.A1407-7/10
LV8804V Functional Description
1 Control Characteristics
The current flowing to the motor and the control characteristics are determined by adjusting the resistance of the RF
resistor.
By connecting a resistor with a resistance of 0.25
between the RF pin and GND, the limit current is set at a motor current
of 1A, and the control characteristics shown in the diagram above are achieved.
By increasing the RF resistance, the limit current is reduced; conversely, by reducing the RF resistance, the limit current is
increased.
Since IO max. is 1.2A, the RF resistance must be set in such a way that the current flowing to the motor does not exceed
this maximum value.
By varying the CTL voltage between 1V and 3V, the current flowing to the output is limited.
PWM control is exercised within the voltage range above (1V to 3V) to control the motor speed.
When the CTL voltage is less than 1V, the current limiter value determined by the RF resistance is reached, and the motor
speed is limited.
When the CTL voltage is greater than 3V, PWM is reduced to 0%, and the motor stops. (However, the motor does not stop
if the minimum speed has been set.)
The minimum speed can be set by resistor-dividing the REG voltage (5V) to create a voltage of 1V to 3V, and inputting
this voltage to the MINSP pin.
If the minimum speed is not going to be set, the MINSP pin and CTL pin (pin 8) must be short-circuited.
2. Timing at Startup (soft start)
When RF = 0.25
IRF
1A
0V
1V
2V
3V
4V
VCTL
The gradient and limit current are determined by the resistance of the RF pin.
Minimum speed
This minimum speed is determined by the MINSP pin voltage.
0.5A
VCC pin
CTL pin
Stop
Soft start
Full speed
Stop
Full speed
SOFTS pin
The gradient changes in accordance with the capacitance of the SOFTST pin.
(The higher the capacitance, the steeper the gradient.)
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相关代理商/技术参数 |
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|---|---|
| LV8804V_11 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PC and Server Fan Motor Driver |
| LV8804V_12 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PC and Server Fan Motor Driver |
| LV8804V-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 |
| LV8804V-TLM-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 |
| LV8805SV | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PC and Server Fan Motor Driver |
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