MAX6954AAX-T Maxim Integrated Products, MAX6954AAX-T Datasheet - Page 5

• Manufacturer Part Number: MAX6954AAX-T
• Description: LED Drivers 7-, 14-, 16-Segment LED Display Driver,
• Manufacturer: Maxim Integrated Products

Specifications of MAX6954AAX-T

• Number Of Digits: 16
• Number Of Segments: 128
• Low Level Output Current: 935000 uA
• High Level Output Current: 55000 uA
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Supply Current: 30000 uA
• Maximum Power Dissipation: 941 mW
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-36
• Minimum Operating Temperature: - 40 C

(V+ = 3.3V, LED forward voltage = 2.4V, typical application circuit, T
4-Wire Interfaced, 2.7V to 5.5V LED Display
O18
0.30
0.25
0.20
0.15
0.10
0.05
O0
110
105
100
0V
0V
95
90
85
80
0
2.5
-40
DEAD CLOCK OSCILLATOR FREQUENCY
_______________________________________________________________________________________
R
OSC = GND
WAVEFORM AT PINS O0 AND O18,
SET
PORT INPUT PULLUP CURRENT
V
CC
3.0
-10
Driver with I/O Expander and Key Scan
= 56kΩ
= 2.5V
vs. SUPPLY VOLTAGE
MAXIMUM INTENSITY
vs. TEMPERATURE
V
SUPPLY VOLTAGE (V)
CC
TEMPERATURE (°C)
3.5
20
= 5.5V
V
200μs/div
CC
1V/div
4.0
= 3.3V
50
4.5
OUTPUT = HIGH
V
PORT
80
= 1.4V
5.0
MAX6954 toc06
Typical Operating Characteristics (continued)
110
5.5
A
= +25°C, unless otherwise noted.)
KEY_A
IRQ
0.98
0.94
1.02
1.00
0.96
0.92
0V
0V
45
40
35
30
25
20
15
10
5
0
-40
2.5
V
CC
SEGMENT SOURCE CURRENT
3.0
-10
= 3.3V
KEYSCAN OPERATION
vs. SUPPLY VOLTAGE
GPIO SINK CURRENT
vs. TEMPERATURE
V
(KEY_A AND IRQ)
SUPPLY VOLTAGE (V)
CC
TEMPERATURE (°C)
3.5
20
= 2.5V
KEY_A: 1V/div
IRQ: 2V/div
400μs/div
4.0
50
V
CC
OUTPUT = LOW
V
PORT
= 5.5V
4.5
= 0.6V
80
V
LED
MAX6954 toc09
5.0
= 1.8V
110
5.5
5