PWM current control motor driver ICs
■Truth Table
BRAKE A or B
I0 A or B
I1 A or B
PHASE A or B
OUT 1 or 4
OUT 2 or 3
MTD2029Ｊ
Output current ratio (%)
H
H
H
H
H
H
H
L
L
H
L
H
L
H
L
r
L
L
H
H
L
L
H
r
L
L
L
r
H
H
H
r
L
L
L
r
H
H
H
L
H
H
H
r
L
L
L
L
100
70
40
0
100
70
40
-
r
: don't care
(Output OFF)
STB
L
H or Open
(
∗
1)
∗
1
Mode
Stand-by
Active
SYNC
L or Open
(
∗
2)
H
Mode
Disabled
Synchronous
pull-up resistance built-in
∗
2
pull-down resistance built-in
DECAY
V
DEC
<
V
CR
V
DEC
>
V
CR
DECAY Mode
FAST
SLOW
SRM
L
(
∗
3)
Mode
Disabled
Synchronous Rectification
H or Open
(
∗
4)
[
1.0V
<
V
CR
<
3.0V
All Fast Decay Mode V
DEC
<
0.6V
All Slow Decay Mode V
DEC
>
3.4V
]
∗
3
∗
4
SRM:Synchronous Rectification Mode
pull-up resistance built-in
Shindengen Electric Mfg.Co.Ltd
W1002
SHINDENGEN [ SHINDENGEN ELECTRIC MFG.CO.LTD ]
