Datasheet MAX7219, MAX7221 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Serially Interfaced, 8-Digit, LED Display Drivers |
| Pages / Page | 15 / 4 — Typical Operating Characteristics. SCAN FREQUENCY vs. SEGMENT DRIVER … |
| File Format / Size | PDF / 1.4 Mb |
| Document Language | English |
Typical Operating Characteristics. SCAN FREQUENCY vs. SEGMENT DRIVER OUTPUT CURRENT. POSITIVE SUPPLY VOLTAGE
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MAX7219/MAX7221 Serially Interfaced, 8-Digit LED Display Drivers
Typical Operating Characteristics
(V+ = +5V, TA = +25°C, unless otherwise noted.)
SCAN FREQUENCY vs. SEGMENT DRIVER OUTPUT CURRENT POSITIVE SUPPLY VOLTAGE vs. OUTPUT VOLTAGE
830 70 820 60 810 MAX7219/21 01 MAX7219/21 02 RSET = 10kΩ 800 50 790 40 780 RSET = 20kΩ 770 30 760 SCAN FREQUENCY (Hz) 20 OUTPUT CURRENT (mA) RSET = 40kΩ 750 10 740 730 0 4.0 4.4 4.8 5.2 5.6 6.0 0 1 2 3 4 5 POSITIVE SUPPLY VOLTAGE (V) OUTPUT VOLTAGE (V)
MAX7219 MAX7221 SEGMENT OUTPUT CURRENT SEGMENT OUTPUT CURRENT
MAXIMUM INTENSITY = 31/32 MAXIMUM INTENSITY = 15/16 MAX7219/21 03 MAX7219/21 04 10mA/div 10mA/div 0 0 5µs/div 5µs/div www.maximintegrated.com Maxim Integrated │ 4
Typical Operating Characteristics
(V+ = +5V, TA = +25°C, unless otherwise noted.)
SCAN FREQUENCY vs. SEGMENT DRIVER OUTPUT CURRENT POSITIVE SUPPLY VOLTAGE vs. OUTPUT VOLTAGE
830 70 820 60 810 MAX7219/21 01 MAX7219/21 02 RSET = 10kΩ 800 50 790 40 780 RSET = 20kΩ 770 30 760 SCAN FREQUENCY (Hz) 20 OUTPUT CURRENT (mA) RSET = 40kΩ 750 10 740 730 0 4.0 4.4 4.8 5.2 5.6 6.0 0 1 2 3 4 5 POSITIVE SUPPLY VOLTAGE (V) OUTPUT VOLTAGE (V)
MAX7219 MAX7221 SEGMENT OUTPUT CURRENT SEGMENT OUTPUT CURRENT
MAXIMUM INTENSITY = 31/32 MAXIMUM INTENSITY = 15/16 MAX7219/21 03 MAX7219/21 04 10mA/div 10mA/div 0 0 5µs/div 5µs/div www.maximintegrated.com Maxim Integrated │ 4