MAX6978AUE+ Maxim Integrated, MAX6978AUE+ Datasheet - Page 5

• Manufacturer Part Number: MAX6978AUE+
• Description: LED Display Drivers 8-Port, 5.5V CC LED Driver w/Fault Det
• Manufacturer: Maxim Integrated

Specifications of MAX6978AUE+

• Rohs: yes
• Number Of Segments: 16
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-16
• Operating Supply Voltage: 3 V to 5.5 V
• Maximum Supply Current: 25 mA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Low Level Output Current: 60 mA
• Power Dissipation: 1702 mW

30
25
20
15
10
15
12
(T
5
0
9
6
3
0
PORT OUTPUT CURRENT vs. PORT OUTPUT
A
SUPPLY CURRENT vs. SUPPLY VOLTAGE
3.0
0
= +25°C, unless otherwise noted.)
VOLTAGE (R
(INTERFACE IDLE, ALL OUTPUTS
8-Port, 5.5V Constant-Current LED Driver with
T
0.5
A
T
= -40°C
3.5
A
PORT OUTPUT VOLTAGE (V)
= +125°C
T
A
ON, R
= +125°C
SUPPLY VOLTAGE (V)
T
T
1.0
T
A
A
A
SET
= +25°C
= +85°C
= -40°C
4.0
SET
= 720Ω, V+ = 5.0V)
1.5
52
51
50
49
48
= 360Ω)
3.0
_______________________________________________________________________________________
T
4.5
A
PORT OUTPUT CURRENT vs. SUPPLY
VOLTAGE (R
T
= +25°C
2.0
A
= +85°C
T
A
= -40°C
3.5
T
A
5.0
2.5
= +125°C
SUPPLY VOLTAGE (V)
SET
4.0
3.0
5.5
LED Fault Detection and Watchdog
= 360Ω, V
T
A
4.5
= +25°C
T
A
= +85°C
OUT
60
50
40
30
20
10
5.0
30
25
20
15
10
0
5
0
PORT OUTPUT CURRENT vs. PORT OUTPUT
Typical Operating Characteristics (continued)
= 2V)
PORT OUTPUT CURRENT vs. PORT OUTPUT
0
0
VOLTAGE (R
VOLTAGE (R
5.5
0.5
0.5
PORT OUTPUT VOLTAGE (V)
PORT OUTPUT VOLTAGE (V)
T
T
A
A
= +125°C
1.0
= +125°C
T
T
1.0
T
T
T
T
A
A
A
SET
A
A
A
SET
= +85°C
= +25°C
= -40°C
= +85°C
= +25°C
= -40°C
= 360Ω, V+ = 5.0V)
1.5
= 720Ω, V+ = 3.3V)
1.5
2.0
2.0
2.5
2.5
50
40
30
20
10
0
0
3.0
3.0
vs. R
2000
PORT OUTPUT CURRENT
SET
R
RESISTANCE (V+ = 5.0V)
SET
26.0
25.5
25.0
24.5
24.0
4000
RESISTANCE (Ω)
60
50
40
30
20
10
0
PORT OUTPUT CURRENT vs. PORT OUTPUT
3.0
0
PORT OUTPUT CURRENT vs. SUPPLY
VOLTAGE (R
VOLTAGE (R
6000
T
A
T
0.5
= -40°C
A
3.5
= +125°C
PORT OUTPUT VOLTAGE (V)
T
A
SUPPLY VOLTAGE (V)
8000
= +125°C
1.0
T
T
T
A
A
SET
A
SET
4.0
= +85°C
= +25°C
= -40°C
= 720Ω, V
= 360Ω, V+ = 3.3V)
10,000
T
1.5
A
= +25°C
4.5
T
A
2.0
= +85°C
OUT
5.0
2.5
= 2V)
3.0
5.5
5