MAX6957 MAXIM [Maxim Integrated Products], MAX6957 Datasheet - Page 4

• Manufacturer Part Number: MAX6957
• Description: 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
• Manufacturer: MAXIM [Maxim Integrated Products]

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port LED Display Driver and I/O Expander
4
(R
__________________________________________Typical Operating Characteristics
ISET
0.40
0.36
0.32
0.28
0.24
0.20
0.16
0.12
0.08
0.04
_______________________________________________________________________________________
26
24
22
20
18
16
14
12
10
0
9
8
7
6
5
4
3
2
8
6
-40.0
-40.0
GPO SOURCE CURRENT vs. TEMPERATURE
= 39kΩ, T
2.0
V+ = 2.5V TO 5.5V
NO LOAD
V
ALL PORTS
OUTPUT (1)
LED DRIVER SINK CURRENT vs. V+
PORT
OPERATING SUPPLY CURRENT
-12.5
2.5
-12.5
= 1.4V
vs. TEMPERATURE
3.0
A
15.0
TEMPERATURE (°C)
15.0
TEMPERATURE (°C)
V+ = 5.5V
= +25°C, unless otherwise noted.)
(OUTPUT = 1)
ALL PORTS LED (OFF)
LED DROP = 2.4V
LED DROP = 1.8V
3.5
V+ = 3.3V
V+ (V)
42.5
42.5
ALL PORTS
OUTPUT (0)
4.0
70.0
V+ = 2.5V
70.0
4.5
97.5
97.5
5.0
125.0
125.0
5.5
1000
100
27
26
25
24
23
22
21
20
10
8
7
6
5
4
3
-40.0
-40.0
-40.0
V
LED
V+ = 3.3V
SHUTDOWN SUPPLY CURRENT
-12.5
-12.5
-12.5
= 2.4V
LED DRIVER SINK CURRENT
GPI PULLUP CURRENT
vs. TEMPERATURE
vs. TEMPERATURE
vs. TEMPERATURE
15.0
15.0
15.0
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE (°C)
V+ = 5.5V
V+ = 5.5V
V+ = 3.3V
42.5
42.5
42.5
V+ = 2.5V
V+ = 3.3V
70.0
70.0
70.0
V+ = 2.5V
V+ = 5.5V
97.5
97.5
97.5
125.0
125.0
125.0
0.01
100
100
0.1
10
18
16
14
12
10
10
1
8
6
4
2
1
-40.0
-40.0
2.0
GPO SINK CURRENT vs. TEMPERATURE
OPERATING SUPPLY CURRENT vs. V+
V+ = 2.5V TO 5.5V, V
SHORTED TO GND
ALL PORTS OUTPUT (1)
GPO = 1, PORT
GPO SHORT-CIRCUIT CURRENT
2.5
-12.5
-12.5
ALL PORTS LED (OFF)
3.0
vs. TEMPERATURE
ALL PORTS LED (ON)
15.0
15.0
TEMPERATURE (°C)
TEMPERATURE (°C)
(OUTPUT = 0)
(NO LOADS)
3.5
V+ (V)
PORT
ALL PORTS OUTPUT (0)
42.5
42.5
SHORTED TO V+
GPO = 0, PORT
4.0
= 0.6V
70.0
70.0
4.5
97.5
97.5
5.0
125.0
125.0
5.5