Application and Test Diagram
V
SS
V
SS
V
SS
D
1
D
1
COIL +
COIL -
L
LOAD
CS3720
ENABLE1
5mH
ENABLE2
I/O
R
30W
LOAD
mP
DIRECTION
Gnd
C
LOAD
0.1mF
D
1
D
1
D = IN4001
1
or equivalent
Note: A heatsink is required for 2A operation.
Figure 1. Delay Times for ENABLE and COIL
ENABLE2 = 2.4V
5V
50%
50%
ENABLE1
0V
5V
0V
DIRECTION
17V
COIL+
COILÐ
10%
0V
17V
90%
0V
50ms
Turnoff
Delay
50ms
Turnoff
Delay
ENABLE1 = 0.4V
50%
5V
ENABLE2
50%
0V
5V
DIRECTION
COIL+
0V
17V
10%
0V
17V
90%
COILÐ
0V
3