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参数资料
| 型号： | LB11946 |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1.2 A, PDIP28 |
| 封装： | 0.500 INCH, DIP-28 |
| 文件页数： | 5/14页 |
| 文件大小： | 127K |
| 代理商： | LB11946 |
LB11946
No.7946-13/14
Attached Documents
1. Switching Off Time and Noise Canceller 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.
(1) When VCC is 5 V
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
(2) When VCC is 3.3 V
Noise canceller time (Tn)
Tn
≈ C × R × ln {(1.06 RI) / (2.66 RI)}[s]
CR pin charge current: 0.7 mA
Switching off time (Toff)
Toff
≈ C × R × ln (1.06 / 3.1)[s]
CR Pin Internal Circuit Structure
R:30k
C:680pF
VCC line
One-shot multivibrator
Blanking time circuit
CR pin
E1
2. Notes on the MD Pin
(1) If slow decay mode is set up by setting the D4 and D10 bits in the input serial data to 1, the MD pin must be shorted
to ground.
(2) If fast decay mode is set up by setting the D4 and D10 bits in the input serial data to 0, mixed decay mode can be
set with the MD pin.
When the VCC = 5V specifications are used the setting voltage range for mixed decay mode is 1.6 to 3.9V.
When the VCC = 3.3V specifications are used the setting voltage range for mixed decay mode is 1.2 to 2.5V.
If mixed decay mode will not be used with the fast decay mode setting, either:
(a) Short the MD pin to ground to select fast decay mode, or
(b) Short the MD pin to VCC to select slow decay mode.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LB11946_09 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PWM Current Control Stepping Motor Driver |
| LB11946_10 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PWM Current Control Stepping Motor Driver |
| LB11946-E | 功能描述:马达/运动/点火控制器和驱动器 10-45V Stepping 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 |
| LB11948T | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Monolithic Digital IC PWM Constant Current Control 1-2 Phase Excitation Stepping Motor Driver |
| LB11948T_07 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:PWM Constant Current Control 1-2 Phase Excitation Stepping Motor Driver |
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