
5
FN6824.1
March 13, 2013
Typical Operating Circuits (1 of 4 Channels Shown)
NETWORK USING GROUP ENABLES
NETWORK USING PAIRED ENABLES
NETWORK WITH VL PIN FOR INTERFACING TO LOWER VOLTAGE LOGIC DEVICES
0.1F
+
R
2
1
16
3
12
8
VCC
GND
RO
EN
B
A
+3.3V TO 5V
0.1F
+
D
VCC
GND
EN
DI
Z
Y
RT
+3.3V TO 5V
ISL32x73E
ISL32x72E
1
4
8
3
2
16
EN 12
EN
4
0.1F
+
R
2
1
16
3
8
VCC
GND
RO1
B1
A1
+3.3V TO 5V
0.1F
+
D
VCC
GND
EN12
DI1
Z1
Y1
RT
+3.3V TO 5V
ISL32x75E
ISL32x74E
4
1
8
3
2
4 EN12
16
0.1F
+
R
24
23
22
1
2
10
VCC
GND
RO1
EN1
B1
A1
+3.3V TO 5V
0.1F
+
D
1
24
21
4
23
9
VCC
GND
EN
DI
Z
Y
RT
+3.3V TO 5V
ISL32x77E
ISL32179E
20
VL
2.5V
21
VL
1.8V
VCC
LOGIC
DEVICE
UART)
VCC
LOGIC
DEVICE
(P, ASIC,
UART)
2,3,15,16
EN1-EN4
14
EN
22
SHDNEN
4 EN
15 EN
9 SHDNEN
USING INDIVIDUAL CHANNEL ENABLES AND
CONFIGURED FOR LOWEST SHDN SUPPLY CURRENT
USING ACTIVE HIGH GROUP ENABLE AND
CONFIGURED FOR LOWEST SHDN SUPPLY CURRENT
NOTE: IF POWERED FROM SEPARATE SUPPLIES,
P, ASIC,
POWER-UP VCC BEFORE VL
ISL32172E, ISL32272E, ISL32372E, ISL32174E, ISL32274E, ISL32374E, ISL32179E