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參數(shù)資料
| 型號(hào)： | tle 4728 |
| 廠商： | SIEMENS AG |
| 英文描述： | 4-Phase Stepper-Motor Driver(兩相步進(jìn)式馬達(dá)驅(qū)動(dòng)器) |
| 中文描述： | 4相步進(jìn)電機(jī)驅(qū)動(dòng)器（兩相步進(jìn)式馬達(dá)驅(qū)動(dòng)器） |
| 文件頁(yè)數(shù)： | 24/25頁(yè) |
| 文件大?。?/td> | 219K |
| 代理商： | TLE 4728 |
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TLE 4728 G
Data Sheet
24
1999-05-18
during that time. To achieve maximum current accuracy such glitches at the phase
inputs should be avoided by proper control signals.
To lower EMI a ceramic capacitor of max. 3 nF is advisable from each output to GND.
Thermal Shut Down
To protect the circuit against thermal destruction, thermal shut down has been
implemented.
Error Monitoring
The error outputs signal corresponding to the logic table the errors described below.
Logic Table
Overtemperature
is implemented as pre-alarm; it appears approximately 20 K before
thermal shut down. To detect an
open load
, the recirculation of the inductive load is
watched. If there is no recirculation after a phase change-over, an internal error flipflop
is set. Because in most kinds of
short circuits
there won’t flow any current through the
motor, there will be no recirculation after a phase change-over, and the error flipflop for
open load will be set, too. Additionally an
open load error
is signaled after a phase
change-over during hold mode.
Only in the case of a
short circuit to GND
, the most probably kind of a short circuit in
automotive applications, the malfunction is signaled dominant (see d) in logic table) by
a separate error flag. Simultaneously the output current is disabled after 30
μ
s to prevent
disturbances.
A phase change-over or putting both current control inputs of the affected bridge on high
potential resets the error flipflop. Being a separate flipflop for every bridge, the error can
be located in easy way.
Kind of Error
Error Output
Error 1
H
H
L
H
L
Error 2
H
L
H
L
L
a) No error
b) Short circuit to GND
c) Open load
1)
d) b) and c) simultaneously
e) Temperature pre-alarm
1)
Also possible: short circuit to +
V
S
or short circuit of the load.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLE4728G | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TLE4728GNT | 制造商:Infineon Technologies AG 功能描述:2-Phase Stepping Motor Driver 24-Pin DSO |
| TLE4728GZT | 制造商:Infineon Technologies AG 功能描述:2-Phase Stepping Motor Driver 24-Pin DSO T/R |
| TLE4729G | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 2-Ph Stepper Motor Driver; Bipolar RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)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 |
| TLE4729-G | 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:2-Phase Stepper-Motor Driver Bipolar-IC |
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