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參數(shù)資料
| 型號： | tle 4728 |
| 廠商： | SIEMENS AG |
| 英文描述： | 4-Phase Stepper-Motor Driver(兩相步進式馬達驅(qū)動器) |
| 中文描述： | 4相步進電機驅(qū)動器（兩相步進式馬達驅(qū)動器） |
| 文件頁數(shù)： | 3/25頁 |
| 文件大小： | 219K |
| 代理商： | TLE 4728 |
TLE 4728 G
Data Sheet
3
1999-05-18
Pin Definitions and Functions
Pin No.
1, 2, 23, 24
Function
Digital control inputs
I
X0,
I
X1
for the magnitude of the current of the
particular phase.
1)
“No current” in both bridges inhibits the circuit and current consumption will sink
below 3 mA
Input phase 1;
controls the current through phase winding 1. On
H-potential the phase current flows from Q11 to Q12, on L-potential in
the reverse direction.
5 ... 8, 17 ... 20
Ground;
all pins are connected at leadframe internally.
4
Oscillator;
works at approx. 25 kHz if this pin is wired to ground across
2.2 nF.
10
Resistor
R
1
for sensing the current in phase 1.
9, 12
Push-pull outputs Q11, Q12
for phase 1 with integrated free-wheeling
diodes.
11
Supply voltage;
block to ground, as close as possible to the IC, with a
stable electrolytic capacitor of at least 47
μ
F in parallel with a ceramic
capacitor of 100 nF.
14
Error 2 output;
signals with “l(fā)ow” the errors: short circuit to ground of
one or more outputs or overtemperature.
13, 16
Push-pull outputs Q22, Q21
for phase 2 with integrated free-wheeling
diodes.
15
Resistor
R
2
for sensing the current in phase 2.
3
I
set
= 450 mA with
R
sense
= 1
I
X1
I
X0
Phase Current
Example of Motor
Status
No current
1)
Hold
Normal mode
Accelerate
H H
H L
L H
L L
0
0.155
×
I
set
I
set
1.55
×
I
set
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| TLE4729-G | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:2-Phase Stepper-Motor Driver Bipolar-IC |
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