5
FN4876.10
March 1, 2006
ICL3238
NOTES:
1. THE NEGATIVE TERMINAL OF C3 CAN BE CONNECTED TO EITHER
VCC OR GND.
2. FOR VCC = 3.15V (3.3V -5%), USE C1 - C4 = 0.1F OR GREATER. FOR
VCC = 3.0V (3.3V -10%), USE C1 - C4 = 0.22F.
ICL3244
Typical Operating Circuits (Continued)
26
VCC
T1OUT
T2OUT
T3OUT
T1IN
T2IN
T3IN
T1
T2
T3
0.1
F
+
0.1
F
+
0.1
F
24
23
5
6
22
7
28
25
27
4
V+
V-
C1+
C1-
C2+
C2-
+
0.1
F
1
3
R1OUT
R1IN
8
5k
R2OUT
R2IN
9
20
5k
R3OUT
R3IN
11
18
5k
21
R1OUTB
C1
C2
+
C3
C4
FORCEON
FORCEOFF
13
GND
14
+3.3V
+
0.1
F
16
2
VCC
TTL/CMOS
LOGIC
RS-232
LEVELS
RS-232
LEVELS
R1
R2
R3
15
INVALID
TO POWER
CONTROL
+
C3 (OPTIONAL
T4OUT
T5OUT
T4IN
T5IN
T3
T4
19
10
17
12
LEVELS
LOGIC
CONNECTION, NOTE 2)
NOTE 3
26
VCC
T1OUT
T2OUT
T3OUT
T1IN
T2IN
T3IN
T1
T2
T3
0.1
F
+
0.1
F
+
0.1
F
14
13
9
10
12
11
28
24
27
3
V+
V-
C1+
C1-
C2+
C2-
+
0.1
F
1
2
R1OUT
R1IN
4
R2OUT
R2IN
5
18
5k
R3OUT
R3IN
6
17
5k
R4OUT
R4IN
7
16
5k
R5OUT
R5IN
R5
8
15
5k
19
R2OUTB
C1
C2
+
C3
C4
FORCEON
FORCEOFF
23
GND
22
+3.3V
+
0.1
F
20
25
VCC
TTL/CMOS
LOGIC
RS-232
LEVELS
RS-232
LEVELS
R1
R2
R3
R4
21
INVALID
TO POWER
CONTROL LOGIC
LEVELS
ICL3224, ICL3226, ICL3238, ICL3244