MAX7370 Maxim, MAX7370 Datasheet - Page 5

• Manufacturer Part Number: MAX7370
• Description: The MAX7370 I²C-interfaced peripheral provides microprocessors with management of up to 64 key switches, with optional GPIO and PWM-controlled LED drivers
• Manufacturer: Maxim

with I
(V
CC
120
100
25
20
15
10
80
60
40
20
60
55
50
45
40
35
30
CURRENT vs. OUTPUT VOLTAGE (COL7–COL4)
8 x 8 Key-Switch Controller and LED Driver/GPIOs
= 2.5V, V
5
0
0
CONSTANT-CURRENT GPIO OUTPUT SINK
1.6
0
SUPPLY CURRENT vs. SUPPLY VOLTAGE
0
V
V
AUTOSLEEP = OFF
CC
CC
1.8
vs. SINK CURRENT (COL7–COL4)
2
= 2.4V
0.5
= 2.4V
GPO OUTPUT LOW VOLTAGE
2.0
4
2
LA
OUTPUT VOLTAGE (V)
2.2
SUPPLY VOLTAGE (V)
C Interface and High Level of ESD Protection
6
SINK CURRENT (mA)
1.0
= 2.5V, T
T
A
T
T
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= -40°C
A
A
2.4
T
8
A
= +25°C
= +25°C
= +85°C
1.5
2.6
10
T
T
A
A
A
2.8
12
= -40°C
= -40°C
T
2.0
= +25NC, unless otherwise noted.)
T
T
A
A
A
= +25°C
3.0
14
= +85°C
= +85°C
3.2
16
2.5
3.4
18
3.0
3.6
20
27.0
26.5
26.0
25.5
25.0
24.5
24.0
120
100
25
20
15
10
80
60
40
20
CURRENT vs. OUTPUT VOLTAGE (COL7–COL4)
5
0
0
1.6
CONSTANT-CURRENT GPIO OUTPUT SINK
0
0
V
V
V
CC
CC
COL0
1.8
vs. SINK CURRENT (COL7–COL4)
2
KEY-SWITCH SOURCE CURRENT
= 3.0V
0.5
= 3.0V
GPO OUTPUT LOW VOLTAGE
2.0
= 0V
4
vs. SUPPLY VOLTAGE
OUTPUT VOLTAGE (V)
2.2
SUPPLY VOLTAGE (V)
6
SINK CURRENT (mA)
1.0
T
A
T
T
T
= -40°C
A
A
A
T
2.4
8
A
= +25°C
= +85°C
= +25°C
= +85°C
1.5
2.6
10
T
T
A
A
2.8
Typical Operating Characteristics
12
= -40°C
= -40°C
T
2.0
T
A
A
= +25°C
3.0
14
= +85°C
3.2
2.5
16
3.4
18
3.0
3.6
20
120
100
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
25
20
15
10
80
60
40
20
CURRENT vs. OUTPUT VOLTAGE (COL7–COL4)
5
0
0
0
1.6
CONSTANT-CURRENT GPIO OUTPUT SINK
0
0
V
V
CC
CC
1.8
vs. SINK CURRENT (COL7–COL4)
2
SLEEP-MODE SUPPLY CURRENT
= 3.6V
0.5
= 3.6V
GPO OUTPUT LOW VOLTAGE
2.0
4
vs. SUPPLY VOLTAGE
OUTPUT VOLTAGE (V)
2.2
SUPPLY VOLTAGE (V)
1.0
6
SINK CURRENT (mA)
T
A
MAX7370
T
= -40°C
A
T
2.4
8
A
= +25°C
= +85°C
1.5
2.6
10
T
T
T
T
A
A
A
A
2.8
12
= -40°C
= +85°C
= -40°C
= +25°C
T
2.0
T
A
A
= +25°C
3.0
14
= +85°C
3.2
2.5
16
3.4
18
3.0
3.6
20