2-Phase Stepper Motor Bipolar Driver ICs (2-Phase/1-2 Phase Excitation)
A3952SB/SLB/SW
(H) Application circuit (DC motor drive)
Fig. 5 Example of DC motor drive
+5 V
V
BB
BRAKE
1
2
3
4
V
BB
16
15
14
13
47
µ
F
+
R
T=
17k
Ω/
25k
MODE
LOGIC
5
12
V
CC
11
10
V
BB
9
0.5
C
T=
820pF/1200pF
PHASE
ENABLE
6
7
8
toff
R
T
C
T
(Chopping off-time setting)
R
T
= 12k to 100kΩ
C
T
= 820 to 1500pF (When using slow current-decay mode only)
1200 to 1500pF (When using fast current-decay mode only)
A3952SB/SLB/SW
77
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