Datasheet MAX6951 (Analog Devices) - 4

Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display Drivers Typical Operating Characteristics
(Typical operating circuit, scan limit set to eight digits, V+ = +3.3V, VLED = 2.4V, TA = +25°C, unless otherwise noted.)
INTERNAL OSCILLATOR FREQUENCY INTERNAL OSCILLATOR FREQUENCY vs. TEMPERATURE vs. SUPPLY VOLTAGE
4.40 4.40 4.30 4.30 V+ = 2.7V MAX6950/1 toc01 4.20 MAX6950/1 toc02 4.20 4.10 4.10 V+ = 3.3V 4.00 4.00 3.90 V+ = 5V 3.90 3.80 3.80 OSCILLATOR FREQUENCY (MHz) OSCILLATOR FREQUENCY (MHz) 3.70 3.70 3.60 3.60
MAX6950/MAX6951
-40 -20 0 20 40 60 80 2 3 4 5 6 TEMPERATURE (°C) SUPPLY VOLTAGE (V)
INTERNAL OSCILLATOR WAVEFORM DEAD CLOCK OSCILLATOR FREQUENCY AT OSC (PIN 9) vs. SUPPLY VOLTAGE
80 3.0 79 78 MAX6950/1 toc03 2.5 MAX6950/1 toc04 77 2.0 76 75 1.5 74 VOLTAGE AT OSC (V) 1.0 73 OSCILLATOR FREQUENCY (kHz) 72 0.5 71 0 70 0 200 400 600 800 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 TIMELINE (ns) SUPPLY VOLTAGE (V)
SEGMENT SOURCE CURRENT WAVEFORM AT SEGO/DIGO (PIN 6) vs. SUPPLY VOLTAGE V+ = 3.3V, 8 DIGITS SCANNED, 8/16 INTENSITY
1.01 3.5 3.0 1.00 MAX6950/1 toc05 MAX6950/1 toc06 2.5 0.99 2.0 0.98 1.5 VOLTAGE (V) 0.97 DIGIT 0 MULTIPLEX TIMESLOT 1.0 CURRENT NORMALIZED TO 40mA 0.96 0.5 0.95 0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 0 500 1000 1500 2000 SUPPLY VOLTAGE (V) TIMELINE (ns)
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