參數(shù)資料
型號(hào)： L6223
廠商： STMICROELECTRONICS
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 6 A, PDIP20
封裝： POWER, DIP-20
文件頁數(shù)： 8/33頁
文件大小： 3431K
代理商： L6223
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
相關(guān)PDF資料
PDF描述
L6225PDTR BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO20
L6225PD BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO20
L6225D BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO20
L6226DTR BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO24
L6226D BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6223A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
L6225 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER
L6225_03 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER
L6225D 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Dual Full Bridge 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
L6225DTR 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Dual Full Bridge 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
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