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參數(shù)資料
| 型號： | L6223 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | DMOS Programmable High Speed Unipolar Stepper Motor Driver(高速單極步進(jìn)電機(jī)驅(qū)動器) |
| 中文描述： | DMOS的可編程高速單極性步進(jìn)電機(jī)驅(qū)動器（高速單極步進(jìn)電機(jī)驅(qū)動器） |
| 文件頁數(shù)： | 16/33頁 |
| 文件大小： | 1078K |
| 代理商： | L6223 |
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Figure19:
Dot MatrixPrinter Motor Driver schematicdiagram (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)
availablein closed loop. In open loop it
is possible to select a smaller t
(ON)
, (seeFig. 20).
(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).
Figure20:
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 calculatethe approximatevalues are:
f
(osc)
= 1/(0.84
RC)
t
ON(min)
= t
(window)
= 0.84
C
R
R
in
/(R+R
in
)
for R
in
= 1.2k
where R
in
is the resistor internal to the IC for the
capacitordischarging.
forR > 10k
L6223
16/33
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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/點(diǎn)火控制器和驅(qū)動器 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/點(diǎn)火控制器和驅(qū)動器 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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