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参数资料
| 型号： | LV8805SV |
| 元件分类： | 运动控制电子 |
| 英文描述： | AC MOTOR CONTROLLER, 1.2 A, PDSO20 |
| 封装： | SSOP-20 |
| 文件页数： | 7/8页 |
| 文件大小： | 207K |
| 代理商： | LV8805SV |
LV8805SV
Application Circuit Example
PWMIN
*9
*7
1000pF
VG
CP
CPC
VREG
F/R
PWMIN
CT
SOFTST
OSC
UO
VO
WO
COM
COMIN
FIL
FG
RD
RF
VCC
GND
*1
PWM Control Signal
f=20kHz to 50kHz
*1. Power supply and GND wiring
The GND is connected to the control circuit power supply system.
*2. Power-side power stabilization capacitor
For the power-side power stabilization capacitor, use a capacitor of 10
μF or more.
Connect the capacitor between VCC and GND with a thick and along the shortest possible route.
*3. COMIN and FIL pins
These pins are used to connect the filter capacitor. The LV8804 uses the back EMF signal generated when the motor is
running to detect the information on the rotor position. The IC dertermines the timing at which the output block
applies current to the motor based on the position information obtained here. Insert a filter capacitor with a capacitance
ranging from (1,000pF to 10,000pF) between the COMIN pin and FIL pin to prevent any motor startup missoperation
that is caused by noise. However, care must be taken since an excessively high capacitance will give rise to
deterioration in efficiency and delays in the output power-on timing while the motor is running at high speed.
Furthermore, connect the capacitor between the COMIN pin and FIL pin as close as possible in order to avoid the
effects of noise from other sources.
*4. CT pin
This pin is used to connect the lock detection capacitor.
The constant-current charging and constant-current discharging circuits inporporated causes locking when the pin
voltage reaches 2.5V, and releasing the lock protection when it drops to 0.5V. This pin must be connected to the GND
when it is not going to be used.
*5. RF pins
These pins are used to set the current limit.
When the pin voltage exceeds 0.25V, the current is limited, and regeneration mode is established. In the application
circuit, this voltage is set in such a way that the current limit will be established at 1A.
The calculation formula is given below.
RF resistance = 0.25V/target current limit value
No.A1748-7/8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LV8805SV_12 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PC and Server Fan Motor Driver |
| LV8805SVGEVB | 功能描述:电源管理IC开发工具 FAN MOTOR DRIVER Eval Board RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LV8805SV-MPB-H | 功能描述:马达/运动/点火控制器和驱动器 FAN MOTOR DRIVER 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-TLM-H | 功能描述:马达/运动/点火控制器和驱动器 FAN MOTOR DRIVER 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 |
| LV8805V | 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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