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参数资料
| 型号： | LB1946 |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1.75 A, PDFM28 |
| 封装： | 0.500 INCH, DIP-28 |
| 文件页数： | 6/16页 |
| 文件大小： | 108K |
| 代理商： | LB1946 |
LB1946
No.7115-14/16
1. Switching OFF time and noise cancellation time calculations
Notes on the CR pin setting (switching off time and noise canceller time)
The noise canceller time (Tn) and the switching off time (Toff) are set using the following formulas.
When VCC=5V
Noise canceller time (Tn)
Tn
≈ C R ln {(1.5 - RI)/(4.0 - RI)} [s]
CR pin charge current: 1.25mA
Switching off time (Toff)
Toff
≈ -C R ln (1.5/4.8) [s]
Component value ranges
R: 5.6k
to 100k
C: 470pF to 2000pF
When VCC=3.3V
Noise canceller time (Tn)
Tn
≈ C R ln {(1.06 - RI)/(2.66 - RI)} [s]
CR pin charge current: 0.7mA
Switching off time (Toff)
Toff
≈ -C R ln (1.06/3.1) [s]
CR pin
VCC line
C
:
680pF
R
:
30k
E1
Figure 2 CR Pin Internal Circuit Structure
One-shot multi-vibrator
blanking time circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB1946_07 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PWM Current Control Stepping Motor Driver |
| LB1946_12 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PWM Current Control Stepping Motor Driver |
| LB1946-E | 功能描述:马达/运动/点火控制器和驱动器 10-45VStepping 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 |
| LB1947 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PWM Current Control Type DC Motor Driver |
| LB1947_09 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PWM Current Control Type Bidirectional Motor Driver |
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