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參數(shù)資料
| 型號(hào)： | LB11946 |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 1.2 A, PDIP28 |
| 封裝： | 0.500 INCH, DIP-28 |
| 文件頁(yè)數(shù)： | 5/14頁(yè) |
| 文件大?。?/td> | 127K |
| 代理商： | LB11946 |
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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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LB11946_09 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PWM Current Control Stepping Motor Driver |
| LB11946_10 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PWM Current Control Stepping Motor Driver |
| LB11946-E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 10-45V Stepping Motor Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| LB11948T | 制造商:SANYO 制造商全稱: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 制造商全稱:Sanyo Semicon Device 功能描述:PWM Constant Current Control 1-2 Phase Excitation Stepping Motor Driver |
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