NTE1857 Datasheet, PDF (6/6 Pages) NTE Electronics – Integrated Circuit Stepper Motor Driver

Fig. 1 – Output Sequence
Clk
Bias/Set
CW/CCW
Phase A B
L1
L2
L3
L4
Phase A
Output
CD
AB
(a) Full Step Mode
C B A DC B
= High Impedance
F/HS = Logic “0”
OIC = Don’t Care
AB C D
EF G HA
BC D
L1
L2
L3
L4
(b) Half Step Mode
= High Impedance
CW/CCW = Logic “0”
F/HS
= Logic “1”, OIC = Logic “0”
AB C D
EF G H A B C D
L1
L2
L3
L4
Phase A
Output
(c) Half Step Mode
CW/CCW = Logic “0”
F/HS
= Logic “1”
OIC
= Logic “1”
16
1
.245
(6.22)
Min
.785 (19.9)
Max
.100 (2.54)
.700 (17.7)
9
.260 (6.6) Max
8
.200 (5.08)
Max
.300
(7.62)