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參數(shù)資料
| 型號(hào)： | TLE6209R |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 7 A H-Bridge for DC-Motor Applications |
| 中文描述： | 7的H -橋直流馬達(dá)應(yīng)用 |
| 文件頁數(shù)： | 8/29頁 |
| 文件大小： | 296K |
| 代理商： | TLE6209R |
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TLE 6209 R
Data Sheet, Version 3.0
8
2001-10-15
2.3.3
The power stages are controlled by the direct inputs DIR and PWM as given in
Table 6
and further illustrated in
Figure 2
. The DIR input gives the direction of output current,
while the PWM input controls whether the current is increased or reduced. The SPI
control bit 2 sets the decay mode, i.e. determines what happens if PWM = L. In pulse-
width modulated applications, this control scheme allows to supply the PWM-signal
always through the same port, using less controller resources.
Direction and PWM
Figure 2
DIR/PWM Control with Slow- and Fast Decay
Table 6
DIR
Functional Truth Table
PWM
MODE
(Bit 2)
1
0
(slow decay)
0
1
0
1
1
(fast decay)
0
1
0
OUT1
OUT2
Comments
0
0
1
1
0
0
1
1
H
H
L
H
H
L
L
H
L
H
H
H
L
H
H
L
Motor turns clockwise
Freewheel with slow decay
Motor turns counterclockwise
Freewheel with slow decay
Motor turns clockwise
Fast decay
Motor turns counterclockwise
Fast decay
M
M
PWM = H
PWM = L
M
M
PWM = H
PWM = L
Slow Decay
Fast Decay
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