參數(shù)資料
型號: TEA3718SP
廠商: 意法半導(dǎo)體
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: STEPPER MOTOR DRIVER
中文描述: 步進(jìn)電機(jī)驅(qū)動器
文件頁數(shù): 12/16頁
文件大?。?/td> 288K
代理商: TEA3718SP
MOTOR SELECTION
Some steppermotors are not designedforcontinu-
ous operation at maximum current. As the circuit
drivesaconstantcurrentthroughthemotor,its tem-
peraturemightincreaseexceedinglybothatlowand
high speed operation.
Also, some stepper motors have such high core
losses thattheyare not suitedfor switchmode cur-
rent regulation.
UNUSED INPUTS
Unusedinputsshouldbeconnectedtopropervoltage
levels in orderto get thehighestnoise immunity.
INTERFERENCE
As the circuit operates with switch mode current
regulation,interferencegenerationproblemsmight
arise in some applications. A good measure might
thenbeto decouplethecircuit with a 15nFceramic
capacitor,locatednearthepackagebetweenpower
line V
S
andground.
The ground lead between R
S
, C
C
and circuit GND
should be kept as short as possible. This applies
alsototheleadbetweenthesensingresistorR
S
and
point S, see FUNCTIONAL BLOCKS.
APPLICATION NOTES
PRINCIPAL OPERATING SEQUENCE
TEA3718-TEA3718S
12/16
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