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| 型号： | LB8503V |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSH DC MOTOR CONTROLLER, 0.003 A, PDSO16 |
| 封装： | 0.225 INCH, SSOP-16 |
| 文件页数： | 20/20页 |
| 文件大小： | 158K |
| 代理商： | LB8503V |
LB8503V
No.A0366-9/20
Pin Setting Procedures (Provided for reference purposes)
[RC pin]
The slope in the speed control diagram is determined by the RC pin time constant.
CTL Duty (%)
(RPM)
0%
100%
Motor
full speed
I LB01771
1. Determine the FG signal frequency (fFG (Hz)) at the motor's highest speed.
(When 2 FG pulses are created on each motor revolution.)
fFG(Hz)=2rpm/60 .........................................................(1)
2. Determine the time constant for the RC pin.
(Let DUTY be the control duty at the highest motor speed. For example, 100% = 1.0, 60% = 0.6)
R×C=DUTY/(3×0.85×fFG) ............................................. (2)
3. Determine the resistor and capacitor values
The range of capacitors that can be used is from 0.01 to 0.015 F due to the charge capabilities of the RC pin circuit.
Therefore, an appropriate resistor value can be determined from either (3) or (4) below from the result obtained in
step 2 above.
R=(R×C)/0.01
μF.......................................................(3)
R=(R×C)/0.015
μF.....................................................(4)
Note that the temperature characteristics of the curve are determined by the temperature characteristics of the
capacitor connected to the RC pin.
A capacitor with excellent temperature characteristics must be used to minimize motor speed variation with
temperature.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB8503V-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 |
| LB8503V-TLM-E | 功能描述:马达/运动/点火控制器和驱动器 BRUSHLESS 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 |
| LB8505AE-R2 | 制造商:Black Box Corporation 功能描述:10/100 ETHERNET SWITCH 5 PORT |
| LB8505AE-R2-W1 | 制造商:Black Box Corporation 功能描述:1 YEAR WARRANTY FOR LB8505AE-R2 |
| LB8508A-W1 | 制造商:Black Box Corporation 功能描述:1 YEAR WARRANTY FOR LB8508A |
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