Datasheet

(R
ISET
= 39kΩ, T
A
= +25°C, unless otherwise noted.)
GPO SHORT-CIRCUIT CURRENT
vs. TEMPERATURE
MAX6957 toc09
TEMPERATURE (°C)
PORT CURRENT (mA)
97.570.042.515.0-12.5
10
100
1
-40.0 125.0
GPO = 0, PORT
SHORTED TO V+
GPO = 1, PORT
SHORTED TO GND
GPI PULLUP CURRENT
vs. TEMPERATURE
MAX6957 toc08
TEMPERATURE (°C)
PULLUP CURRENT (A)
97.570.042.515.0-12.5
100
1000
10
-40.0 125.0
V+ = 5.5V
V+ = 3.3V
V+ = 2.5V
GPO SOURCE CURRENT vs. TEMPERATURE
(OUTPUT = 1)
MAX6957 toc07
TEMPERATURE (°C)
PORT SOURCE CURRENT (mA)
97.570.042.515.0-12.5
3
4
5
6
7
8
9
2
-40.0 125.0
V
PORT
= 1.4V
V+ = 5.5V
V+ = 3.3V
V+ = 2.5V
GPO SINK CURRENT vs. TEMPERATURE
(OUTPUT = 0)
MAX6957 toc06
TEMPERATURE (°C)
PORT SINK CURRENT (mA)
97.570.0-12.5 15.0 42.5
4
6
8
10
12
14
16
18
2
-40.0 125.0
V+ = 2.5V TO 5.5V, V
PORT
= 0.6V
LED DRIVER SINK CURRENT
vs. TEMPERATURE
MAX6957 toc05
TEMPERATURE (°C)
PORT SINK CURRENT (mA)
97.570.042.515.0-12.5
21
22
23
24
25
26
27
20
-40.0 125.0
V
LED
= 2.4V
V+ = 5.5V
V+ = 3.3V
LED DRIVER SINK CURRENT vs. V+
MAX6957 toc04
V+ (V)
PORT SINK CURRENT (mA)
5.04.53.5 4.03.02.5
8
10
12
14
16
18
20
22
24
26
6
2.0 5.5
LED DROP = 2.4V
LED DROP = 1.8V
OPERATING SUPPLY CURRENT vs. V+
(NO LOADS)
MAX6957 toc03
V+ (V)
SUPPLY CURRENT (mA)
5.04.54.03.53.02.5
0.1
1
10
100
0.01
2.0 5.5
ALL PORTS LED (ON)
ALL PORTS LED (OFF)
ALL PORTS OUTPUT (1)
ALL PORTS OUTPUT (0)
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX6957 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (A)
97.570.042.515.0-12.5
4
5
6
7
8
3
-40.0 125.0
V+ = 5.5V
V+ = 3.3V
V+ = 2.5V
OPERATING SUPPLY CURRENT
vs. TEMPERATURE
MAX6957 toc01
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
97.570.042.515.0-12.5
0.04
0.08
0.12
0.16
0.20
0.24
0.28
0.32
0.36
0.40
0
-40.0 125.0
V+ = 2.5V TO 5.5V
NO LOAD
ALL PORTS
OUTPUT (1)
ALL PORTS
OUTPUT (0)
ALL PORTS LED (OFF)
Maxim Integrated │ 4
www.maximintegrated.com
MAX6957 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port LED Display Driver and I/O Expander
Typical Operating Characteristics