Rainbow Electronics MAX6975 - Manual (Page 4)

MAX6974/MAX6975
24-Output PWM LED Drivers
for Message Boards
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V DD = 3.3V, T A = +25°C, unless otherwise noted.)
OPERATING CURRENT CONSUMPTION
vs. SUPPLY VOLTAGE V DD
MAX6974 toc01
SUPPLY VOLTAGE V DD (V)
I DD
(mA)
3.4 3.3 3.2 3.1
53
49
51
55
45
47
3.0 3.5 3.6
T
A
= -40 °C
T A = +25 °C
T A = +125 °C
T
A
= +85 °C
f CLKI = 32MHz
CALDAC = 0xFF
OPERATING CURRENT CONSUMPTION
vs. SUPPLY VOLTAGE V DD
MAX6974 toc02
SUPPLY VOLTAGE V DD (V)
I DD
(mA)
3.5 3.4 3.3 3.2 3.1
24
26
28
30
20
22
3.0 3.6
T A = -40 °C T A = +25 °C
T A = +85 °C
T A = +125 °C
f CLKI = 0MHz
CALDAC = 0x00
LED OUTPUT SINK CURRENT
vs. OUTPUT VOLTAGE
MAX6974 toc03
OUTPUT VOLTAGE (V)
I SINK
(mA)
5 6 4 3 2 1
5
15
10
25
20
30
35
0
0 7
T
A
= -40 °C
T A = +125 °C
T
A
= +25 °C
T A = +85 °C
LED OUTPUT SINK CURRENT
vs. OUTPUT VOLTAGE
MAX6974 toc04
OUTPUT VOLTAGE (V)
I SINK
(mA)
5 6 4 3 2 1
5
15
10
25
20
30
35
0
0 7
V DD = +3.0V
V DD = +3.3V
V
DD
= +3.6V