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参数资料
| 型号： | L6223 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 运动控制电子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 6 A, PDIP20 |
| 封装： | POWER, DIP-20 |
| 文件页数： | 8/33页 |
| 文件大小： | 3431K |
| 代理商： | L6223 |
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Figure 19: Dot Matrix Printer Motor Driver schematic diagram (See also fig. 10, 16).
External RC Network (pin 14)
The external RC network provides the higher of
the two possible chopping frequencies. The dis-
charge time of the capacitor represents the mini-
mum t(ON) available in closed loop. In open loop it
is possible to select a smaller t(ON), (see Fig. 20).
The t(ON) min defines the min current the IC can
supply to the motor, as well as the protection
"window". This window is necessary to mask the
spike generated at the beginning of each chop-
ping period (see Fig. 21a).
Figure 20: Oscillator waveform and timing.
The window must be large enough to mask this
spike, without penalizing excessively the min cur-
rent control. The capacitor C mainly defines the
value of the window. The mathematical formulas
to calculate the approximate values are:
f(osc) = 1/(0.84
RC)
for R > 10k
tON(min) = t(window) = 0.84
C R Rin/(R+Rin)
for Rin = 1.2k
where Rin is the resistor internal to the IC for the
capacitor discharging.
L6223
16/33
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6223A | 制造商:未知厂家 制造商全称:未知厂家 功能描述: |
| L6225 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER |
| L6225_03 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER |
| L6225D | 功能描述:马达/运动/点火控制器和驱动器 Dual Full Bridge 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 |
| L6225DTR | 功能描述:马达/运动/点火控制器和驱动器 Dual Full Bridge 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 |
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