Datasheet

ADS7817
14
SBAS066A
FIGURE 10. Motor Control Using the ISO130, ADS7817, and DSPS6004.
78L05
R
SENSE
from
PWM
from
PWM
First Motor
Leg Driver
AC Motor
HV
–
(Several
Hundred
Volts)
C
8
0.1µF
C
7
0.1µF
+V
ISO1
+5V
GND1
GND1
System
GND
System
GND
CLK
CS/SHDN
D
OUT
SCKT
SDO 0
SDI 1
SDI 0
MOSI/HA 0
ISO130
• • •
• • •
• • •
+
–
+5V
System
GND
R
8
200Ω
R
9
200Ω
SD02
SS/HA2
HV+
(Several
Hundred
Volts)
0.01µF
R
10
ADS7817
C
9
0.01µF
78L05
C
5
0.1µF
C
4
0.1µF
+V
ISO2
GND2
GND2
System
GND
System
GND
D
OUT
CLK
CS/SHDN
ISO130
to 2nd Motor
Leg Driver
+5V
R
5
200Ω
R
6
200Ω
ADS7817
C
6
0.01µF
78L05
C
2
0.1µF
C
1
0.1µF
+V
ISO3
GND3
GND3
System
GND
System
GND
D
OUT
CLK
CS/SHDN
ISO130
to 3rd Motor
Leg Driver
+5V
R
2
200Ω
R
3
200Ω
ADS7817
C
3
0.01µF
REF1004-1.2
C
15
0.1µF
C
14
5µF
+
R
7
1kΩ
+5V
REF1004-1.2
C
13
0.1µF
C
12
5µF
+
R
4
1kΩ
+5V
REF1004-1.2
C
11
0.1µF
C
10
5µF
+
R
1
1kΩ
WST
Motorola
DSPS6004
WSR
SCKR
SCK/SCL