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參數(shù)資料
| 型號(hào)： | L6285 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 3 CHANNELS MULTIPOWER SYSTEM |
| 中文描述： | 3通道移動(dòng)電站系統(tǒng) |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 303K |
| 代理商： | L6285 |
These two channels drive two unipolar stepper
motorsin choppingmode. The basic channel con-
figuration is shown in Fig 4. by considering well
known the PWM Current Control Loop behaviour
here below only particular trick are underlined.
During DM3 off period the low side DMOS DM1
and DM2 are switched on to reduce the power
dissipation.
The drain overvoltages generated because of the
stray inductance of the motorwindings are limited
by connecting the DZ1 externalzener diode to the
clamp pin.. The diodes CL1 and CL2 are inte-
grated as far as the CL3 diode which limits the
negative voltage at pin COM1.2. An internal RC
network (1
μ
s) is realized to filter the sensing re-
sistor signal.
Figure.4
: Unipolarmotor driver CHA(or CHB)
L6285
8/16
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| L6285S | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3 CHANNELS MULTIPOWER SYSTEM |
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