MAX6955AAX Maxim Integrated Products, MAX6955AAX Datasheet - Page 17

• Manufacturer Part Number: MAX6955AAX
• Description: LED Drivers Integrated Circuits (ICs)
• Manufacturer: Maxim Integrated Products

Specifications of MAX6955AAX

• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 10. Multiplex Timing Diagram (OSC = 4MHz)
2-Wire Interfaced, 2.7V to 5.5V LED Display
DIGIT 0 CATHODE
DRIVER INTENSITY
SETTINGS
ANODE (LIT)
ANODE (UNLIT)
______________________________________________________________________________________
(MAX ON)
1/16TH
(MIN ON)
2/16TH
3/16TH
4/16TH
5/16TH
6/16TH
7/16TH
8/16TH
9/16TH
10/16TH
11/16TH
12/16TH
13/16TH
14/16TH
15/16TH
15/16TH
HIGH-Z
HIGH-Z
Driver with I/O Expander and Key Scan
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
CURRENT SOURCE ENABLED
DIGIT 0
200µs
HIGH-Z
HIGH-Z
DIGIT 1
HIGH-Z
HIGH-Z
DIGIT 2
ONE COMPLETE 1.6ms MULTIPLEX CYCLE AROUND 8 DIGITS
HIGH-Z
DIGIT 0's 200µs MULTIPLEX TIMESLOT
HIGH-Z
DIGIT 3
HIGH-Z
HIGH-Z
MINIMUM 12.5µs INTERDIGIT BLANKING INTERVAL
DIGIT 4
HIGH-Z
HIGH-Z
HIGH-Z
DIGIT 5
HIGH-Z
HIGH-Z
DIGIT 6
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
DIGIT 7
START OF
NEXT CYCLE
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