PCA9555_15 Datasheet, PDF (8/42 Pages) Texas Instruments – SMBus I/O Expander With Interrupt Output

PCA9555
SCPS131F – AUGUST 2005 – REVISED JUNE 2014
6.7 Typical Characteristics
T_A = 25°C (unless otherwise noted)
55
50
45
40
35
30
25
20
15
10
5
0
-50
f_SCL = 400 kHz
I/Os Unloaded
V_CC = 5 V
V_CC = 3.3 V
V_CC = 2.5 V
-25
0
25
50
75
100
T_A – Free-Air Tem perature – °C
Figure 1. Supply Current vs Temperature
70
60
f_SCL = 400 kHz
I/Os Unloaded
50
40
30
20
10
0
2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
V_CC – Supply Voltage – V
Figure 3. Supply Current vs Supply Voltage
40
V_CC = 3.3 V
35
30
T_A = –40°C
25
T_A = 25°C
20
15
10
T_A = 125°C
5
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
V_OL – Output Low Voltage – V
Figure 5. I/O Sink Current vs Output Low Voltage
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30
SCL = V_CC
25
20
V_CC = 5 V
15
V_CC = 3.3 V
10
5
V_CC = 2.5 V
0
-50 -25
0
25
50
75 100
T_A – Free-Air Tem perature – °C
Figure 2. Standby Supply Current vs Temperature
30
V_CC = 2.5 V
25
20
T_A = 25°C
15
T_A = –40°C
10
T_A = 125°C
5
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
V_OL – Output Low Voltage – V
Figure 4. I/O Sink Current vs Output Low Voltage
50
V_CC = 5 V
45
40
T_A = –40°C
35
30
T_A = 25°C
25
20
15
10
T_A = 125°C
5
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
V_OL – Output Low Voltage – V
Figure 6. I/O Sink Current vs Output Low Voltage
8
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