TCA6408A-Q1 Datasheet, PDF (8/40 Pages) Texas Instruments – Low-Voltage 8-Bit I2C and SMBus I/O Expander With Interrupt Output

TCA6408A-Q1
SCPS234 – SEPTEMBER 2016
6.9 Typical Characteristics
T_A = 25°C (unless otherwise noted)
12
1.65 V
2.5 V
3.6 V
1.8 V
3.3 V
10
8
6
4
2
-40 -25 -10
5 20 35 50 65 80
Temperature, T_A (°C)
95 110 125
D001
Figure 1. Supply Current vs Temperature
10
1.8 V (-40qC) 2.5 V (125qC)
1.8 V (125qC) 3.3 V (-40qC)
2.5 V (-40qC) 3.3 V (125qC)
8
6
4
2
0 30 60 90 120 150 180 210 240 270 300
t_r - Rise and fall time (ns)
D003
Figure 3. Supply Current vs Rise and Fall Times (t_r)
25
-40qC
25qC
20
85qC
125qC
15 V_CCP = 1.65 V
10
5
0
0
0.1
0.2
0.3
0.4
0.5
0.6
V_OL - Output Low Voltage (V)
D005
Figure 5. I/O Sink Current vs Output Low Voltage
(V_CCP = 1.65 V)
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2
1.65 V
2.5 V
3.6 V
1.8
1.8 V
3.3 V
1.6
1.4
1.2
1
0.8
0.6
0.4
-40 -25 -10
5 20 35 50 65 80
Temperature, T_A (°C)
95 110 125
D002
Figure 2. Standby Supply Current vs Temperature
16
t_r = 3 ns
14
t_r = 150 ns
t_r = 300 ns
12
10
8
6
4
2
1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6
V_CCP - Supply Voltage(V)
D004
Figure 4. Supply Current vs Supply Voltage
25
-40qC
25qC
20
85qC
125qC
15
V_CCP = 1.8 V
10
5
0
0
0.1
0.2
0.3
0.4
0.5
0.6
V_OL - Output Low Voltage (V)
D006
Figure 6. I/O Sink Current vs Output Low Voltage
(V_CCP = 1.8 V)
8
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