Equivalent Circuit Block Diagram
LB1933M
VCC
1
VS2
11
VS1
4
50kΩ
IN1 6
80kΩ
50kΩ
ENA1 2
80kΩ
Control block
Thermal shutdown
10µF
OUT1
3
Stepping
Motor
5
OUT2
50kΩ
IN2 9
80kΩ
50kΩ
ENA2 13
80kΩ
GND
7
Control block
12
OUT3
10
OUT4
GND
14
8
Vcont
ILB00048
* There are no constraints on the relationship between the applied voltage to VCC, VS1, VS2, ENA1, ENA2, IN1, and
IN2 within the absolute maximum ratings (For example, this IC can be used at VCC=3V, VS1=VS2=2V, and
ENA=IN=5V)
No.6506-4/5