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參數(shù)資料
| 型號： | LB11948T |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 0.5 A, PDSO30 |
| 封裝： | 0.275 INCH, TSSOP-30 |
| 文件頁數(shù)： | 3/13頁 |
| 文件大?。?/td> | 161K |
| 代理商： | LB11948T |
LB11948T
No.7947-11/13
Usage Notes
(1) Simple Formulas for Determining Resister and Capacitor Values
The formula for setting the rising time (T1) and the falling time (T2) for the RC oscillator are shown below. (Refer to
Fig. 1)
Fig. 1
Formulas
Oscillation period
T = T1+T2
(sec)
Threshold voltages V1 = ((VCC - Vset1) × 10.7k/48.7k) + Vset1
(V)
V2 = ((VCC - Vset2) × 42.7k/80.7k) + Vset2
(V)
Vset1 : VCE voltage of transistor for internal comparator hysteresis = 0.05V
Vset2 : VCE voltage of reference resistance switching transistor of oscillation circuit = 0.1V
When charging :
T1 = -C
× R × ln {(VCC - V2)/(VCC - V1)} (sec)
When discharging : T2 = -C
× Rin × ln (V1/V2) (sec)
Rin : Internal discharge resistance of the CR pin1.3k
Ω
C : External capacitor
R : External resistor
Oscillation frequency
Fc = 1/T (Hz)
The T2 fall time serves as the noise canceling time (Tn). This time is a forced-on time for the output, and the output is
not turned off even when the E pin voltage is higher than the sense voltage that has been preset by VREF.
T2
T1
V1
V2
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LB11948T_10 | 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 |
| LB11948T-MPB-E | 功能描述:馬達/運動/點火控制器和驅動器 RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| LB11948T-TLM-E | 功能描述:馬達/運動/點火控制器和驅動器 PRINTER RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| LB-1195 | 制造商:Ideal Industries Inc 功能描述:WIRESTOP STMLT STD 制造商:Ideal Industries Inc 功能描述:Stripmaster Lite Repair |
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