TCA9555 Datasheet, PDF (17/32 Pages) Texas Instruments – LOW VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

TCA9555
www.ti.com .............................................................................................................................................................. SCPS200A – JULY 2009 – REVISED JULY 2009
TYPICAL CHARACTERISTICS (continued)
T_A = 25°C (unless otherwise noted)
I/O SOURCE CURRENT
vs
OUTPUT HIGH VOLTAGE
75
70 VCC = 5 V
65
60
TA = –40°C
55
50
45
TA = 25°C
40
35
30
25
20
15
TA = 125°C
10
5
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
(VCC – VOH) – V
I/O HIGH VOLTAGE
vs
TEMPERATURE
300
275
250 _{VCC = 2.5 V, IOL = 10 m A}
225
200
175
150
125
VCC = 5 V, IOL = 10 m A
100
75
50
25
0
-50 -25
0
25
50
75
100
TA – Free-Air Tem perature – °C
SUPPLY CURRENT
vs
NUMBER OF I/Os HELD LOW
1200
1100
1000
900
VCC = 5 V
TA = –40°C
800
700
600
TA = 25°C
500
400
300
TA = 125°C
200
100
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Num ber of I/Os Held Low
OUTPUT HIGH VOLTAGE
vs
SUPPLY VOLTAGE
6
TA = 25°C
5
4
IOH = –8 m A
3
IOH = –10 m A
2
1
0
2.3 2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
VCC – Supply Voltage – V
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