TCA9554_15 Datasheet, PDF (8/38 Pages) Texas Instruments – TCA9554 Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

TCA9554
SCPS233D – MARCH 2012 – REVISED AUGUST 2015
6.8 Typical Characteristics
T_A = 25°C (unless otherwise noted)
22
20
18
16
14
12
10
8
6
4
2
0
-40
-15
10
35
60
T_A - Free-Air Temperature (°C)
f_SCL = 400 kHz
I/Os = High or Low
Inputs
1.8 V
2.5 V
3.3 V
5V
85
D001
Figure 1. Supply Current (I_CC, Operating Mode) vs.
Temperature (T_A) at Four Supply Voltages
25
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1.8
1.6
1.4
1.2
1
0.8
1.8 V
2.5 V
0.6
3.3 V
5V
0.4
0.2
0
-40
-15
10
35
60
T_A - Free-Air Temperature (°C)
f_SCL = 0 kHz I/Os = High Inputs
85
D002
Figure 2. Supply Current (ICC, Standby Mode) vs.
Temperature (T_A) at Four Supply Voltages
250
20
200
15
150
10
5
0
0 0.5 1 1.5 2 2.5 3 3.5 4
V_CC - Supply Voltage (V)
f_SCL = 400 kHz
I/Os = High or Low
Inputs
4.5 5 5.5
D003
T_A = 25°C
Figure 3. Supply Current (I_CC, Operating Mode) vs. Supply
Voltage (V_CC)
80
1.8 V
70
2.5 V
3.3 V
60
5V
50
40
30
20
10
0
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
V_OL - Output Low Voltage - (V)
D005
T_A = 25°C
Figure 5. Sink Current (I_OL) vs. Output Low Voltage (V_OL) for
P-Ports at Four Supply Voltages
100
50
0
-40
V_CC = 1.8 V, I_OL = 8 mA
V_CC = 5 V, I_OL = 8 mA
V_CC = 1.8 V, I_OL = 10 mA
V_CC = 5 V, I_OL = 10 mA
-15
10
35
60
T_A - Free-Air Temperature (°C)
I/Os = High or Low
Inputs
85
D004
Figure 4. Output Low Voltage (V_OL) vs. Temperature (T_A) for
P-Port I/Os
500
450
400
V_CC = 1.8 V, I_OH = 8 mA
V_CC = 5 V, I_OH = 8 mA
V_CC = 1.65 V, I_OH = 10 mA
V_CC = 5 V, I_OH = 10 mA
350
300
250
200
150
100
50
0
-40
-15
10
35
60
T_A - Free-Air Temperature (°C)
85
D006
Figure 6. Output High Voltage (V_CC - V_OH) vs. Temperature
(T_A) for P-Ports
8
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