TCA6408_09 Datasheet, PDF (15/31 Pages) Texas Instruments – LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

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TCA6408
LOW-VOLTAGE 8-BIT I²C AND SMBus I/O EXPANDER
WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
SCPS151C – FEBRUARY 2007 – REVISED JUNE 2007
TYPICAL CHARACTERISTICS
T_A = 25°C (unless otherwise noted)
18
16
14
12
10
8
6
4
2
0_–40
SUPPLY CURRENT
vs
TEMPERATURE
f_SCL = 400 kHz
All I/Os unloaded
V_CC = 5.0 V
V_CC = 3.3 V
V_CC = 2.5 V
V_CC = 1.8 V
–15 10 35 60 85
Temperature, T_A (°C)
STANDBY SUPPLY CURRENT
vs
TEMPERATURE
120
SCL = V_CC
100 ^{All I/Os unloaded}
80
V_CC = 5.0 V
60
V_CC = 3.3 V
40
V_CC = 2.5 V
V_CC = 1.8 V
20
0
–40 –15 10 35 60 85
Temperature, T_A (°C)
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
18
16
f_SCL = 400 kHz
All I/Os unloaded
14
12
10
8
6
4
2
0
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Supply Voltage, V_CC (V)
I/O SINK CURRENT
vs
OUTPUT LOW VOLTAGE
30
25 ^{VCC = 1.8 V TA = –40°C}
20
15
T_A = 25°C
10
T_A = 85°C
5
00.0 _{0.1 0.2 0.3 0.4 0.5 0.6}
Output Low Voltage, V_OL (V)
I/O SINK CURRENT
vs
OUTPUT LOW VOLTAGE
60
V_CC = 2.5 V
50
40
T_A = –40°C
30
20 TA = 25°C
10
T_A = 85°C
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6
Output Low Voltage, V_OL (V)
I/O SINK CURRENT
vs
OUTPUT LOW VOLTAGE
70
V_CC = 3.3 V
60
50
T_A = –40°C
40
30
T_A = 25°C
20
10
T_A = 85°C
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6
Output Low Voltage, V_OL (V)
I/O SINK CURRENT
vs
OUTPUT LOW VOLTAGE
90
80 ^{VCC = 5.0 V}
70
60
T_A = –40°C
50
40
30
T_A = 25°C
20
T_A = 85°C
10
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6
Output Low Voltage, V_OL (V)
I/O LOW VOLTAGE
vs
TEMPERATURE
300
250
V_CC = 1.8 V, I_SOURCE = 10 mA
200
150
100
V_CC = 5.0 V, I_SOURCE = 10 mA
50
V_CC = 1.8 V, I_SOURCE = 1 mA
V_CC = 5 V, I_SOURCE = 1 mA
0
–40 –15 10 35 60 85
Temperature, T_A (°C)
I/O SOURCE CURRENT
vs
OUTPUT HIGH VOLTAGE
30
V_CC = 1.8 V
25
T_A = –40°C
20
15
T_A = 25°C
10
5
T_A = 85°C
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6
V_CCP – V_OH (V)
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