TCA9555 Datasheet, PDF (16/32 Pages) Texas Instruments – LOW VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

TCA9555
SCPS200A – JULY 2009 – REVISED JULY 2009 .............................................................................................................................................................. www.ti.com
TYPICAL CHARACTERISTICS
T_A = 25°C (unless otherwise noted)
SUPPLY CURRENT
vs
TEMPERATURE
55
50
45
40
35
30
25
20
15
10
5
0
-50
fSCL = 400 kHz
I/Os Unloaded
VCC = 5 V
VCC = 3.3 V
VCC = 2.5 V
-25
0
25
50
75
100
TA – Free-Air Tem perature – °C
STANDBY SUPPLY CURRENT
vs
TEMPERATURE
30
SCL = VCC
25
20
VCC = 5 V
15
VCC = 3.3 V
10
5
VCC = 2.5 V
0
-50 -25
0
25
50
75 100
TA – Free-Air Tem perature – °C
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
70
60
fSCL = 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
VCC – Supply Voltage – V
I/O SINK CURRENT
vs
OUTPUT LOW VOLTAGE
30
VCC = 2.5 V
25
20
TA = 25°C
15
TA = –40°C
10
TA = 125°C
5
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
VOL – Output Low Voltage – V
I/O SINK CURRENT
vs
OUTPUT LOW VOLTAGE
40
VCC = 3.3 V
35
30
TA = –40°C
25
TA = 25°C
20
15
10
TA = 125°C
5
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
VOL – Output Low Voltage – V
I/O SINK CURRENT
vs
OUTPUT LOW VOLTAGE
50
VCC = 5 V
45
40
TA = –40°C
35
30
TA = 25°C
25
20
15
10
TA = 125°C
5
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
VOL – Output Low Voltage – V
I/O OUTPUT LOW VOLTAGE
vs
TEMPERATURE
300
275
VCC = 2.5 V, ISINK = 10 m A
250
225
200
175
VCC = 5 V, ISINK = 10 m A
150
125
100
75
VCC = 2.5 V, ISINK = 1 m A
50
VCC = 5 V, ISINK = 1 m A
25
0
-50 -25
0
25
50
75
100
TA – Free-Air Tem perature – °C
I/O SOURCE CURRENT
vs
OUTPUT HIGH VOLTAGE
35
VCC = 2.5 V
30
25
20
TA = 25°C
TA = –40°C
15
10
TA = 125°C
5
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
(VCC – VOH) – V
I/O SOURCE CURRENT
vs
OUTPUT HIGH VOLTAGE
50
VCC = 3.3 V
45
40
TA = –40°C
35
TA = 25°C
30
25
20
15
10
TA = 125°C
5
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
(VCC – VOH) – V
16
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