Datasheet MAX253 (Maxim) - 3
| Manufacturer | Maxim |
| Description | Transformer Driver for Isolated RS-485 Interface |
| Pages / Page | 18 / 3 — Typical Operating Characteristics. OUTPUT RESISTANCE vs. TEMPERATURE. … |
| File Format / Size | PDF / 284 Kb |
| Document Language | English |
Typical Operating Characteristics. OUTPUT RESISTANCE vs. TEMPERATURE. SHUTDOWN SUPPLY CURRENT. (FS = LOW). (FS = HIGH)
Model Line for this Datasheet
- MAX253C/D MAX253CPA MAX253CPA+ MAX253CSA MAX253CSA+ MAX253CSA+T MAX253CSA+TG002 MAX253CSA-T MAX253CUA MAX253CUA+ MAX253CUA+T MAX253CUA-T MAX253EPA MAX253EPA+ MAX253ESA MAX253ESA+ MAX253ESA+T MAX253ESA+TG002 MAX253ESA-T MAX253ESA/V+ MAX253ESA/V+T MAX253EUA MAX253EUA+ MAX253EUA+T MAX253MJA MAX253MSA/PR MAX253MSA/PR+ MAX253MSA/PR+T
Text Version of Document
MAX253 Transformer Driver for Isolated RS-485 Interface
Typical Operating Characteristics
(Circuit of Figure 6, VIN = 5V ±10%, TA = +25°C, unless otherwise noted.)
OUTPUT RESISTANCE vs. TEMPERATURE OUTPUT RESISTANCE vs. TEMPERATURE SHUTDOWN SUPPLY CURRENT (FS = LOW) (FS = HIGH) vs. TEMPERATURE
10.5 15 1.0 plot01 MEASURED AT TP1 plot02 MEASURED AT TP1 plot03 10.0 INCLUDES SWITCH LEAKAGE CURRENTS ) 0.8 9.5 ) Ω V Ω μA) IN = 4.5V 9.0 12 0.6 8.5 VIN = 4.5V 8.0 V VIN = 5.0V IN = 5.0V 0.4 7.5 9 OUTPUT RESISTANCE ( OUTPUT RESISTANCE ( SHUTDOWN CURRENT ( 7.0 0.2 6.5 6.0 6 0 -60 -40 -20 0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C)
D1, D2 FREQUENCY vs. TEMPERATURE D1, D2 FREQUENCY vs. TEMPERATURE SUPPLY CURRENT vs. TEMPERATURE (FS = LOW) (FS = HIGH) (FS = LOW)
260 480 600 plot04 plot05 plot06 VIN = 6.0V 550 240 VIN = 6.0V 440 VIN = 6.0V μA) 500 VIN = 5.5V 220 VIN = 5.5V 400 450 VIN = 5.5V 400 VIN = 5.0V 200 360 FREQUENCY (kHz) FREQUENCY (kHz) SUPPLY CURRENT ( 350 180 VIN = 5.0V 320 VIN = 5.0V 300 V V IN = 4.5V VIN = 4.5V IN = 4.5V 160 280 250 -60 -40 -20 0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C)
SUPPLY CURRENT vs. TEMPERATURE EFFICIENCY vs. LOAD CURRENT (FS = HIGH) (FS = LOW)
850 100 plot07 plot08 800 90 VIN = 6.0V V 80 IN = 5.5V 750 μA) 70 700 VIN = 4.5V VIN = 5.5V 60 650 50 600 V 40 IN = 5.0V EFFICIENCY (%) 550 SUPPLY CURRENT ( 30 500 20 VIN = 4.5V 450 10 400 0 -60 -40 -20 0 20 40 60 80 100 120 140 0 20 40 60 80 100 120 140 160 180 200 TEMPERATURE (°C) LOAD CURRENT (mA) www.maximintegrated.com Maxim Integrated | 3
Typical Operating Characteristics
(Circuit of Figure 6, VIN = 5V ±10%, TA = +25°C, unless otherwise noted.)
OUTPUT RESISTANCE vs. TEMPERATURE OUTPUT RESISTANCE vs. TEMPERATURE SHUTDOWN SUPPLY CURRENT (FS = LOW) (FS = HIGH) vs. TEMPERATURE
10.5 15 1.0 plot01 MEASURED AT TP1 plot02 MEASURED AT TP1 plot03 10.0 INCLUDES SWITCH LEAKAGE CURRENTS ) 0.8 9.5 ) Ω V Ω μA) IN = 4.5V 9.0 12 0.6 8.5 VIN = 4.5V 8.0 V VIN = 5.0V IN = 5.0V 0.4 7.5 9 OUTPUT RESISTANCE ( OUTPUT RESISTANCE ( SHUTDOWN CURRENT ( 7.0 0.2 6.5 6.0 6 0 -60 -40 -20 0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C)
D1, D2 FREQUENCY vs. TEMPERATURE D1, D2 FREQUENCY vs. TEMPERATURE SUPPLY CURRENT vs. TEMPERATURE (FS = LOW) (FS = HIGH) (FS = LOW)
260 480 600 plot04 plot05 plot06 VIN = 6.0V 550 240 VIN = 6.0V 440 VIN = 6.0V μA) 500 VIN = 5.5V 220 VIN = 5.5V 400 450 VIN = 5.5V 400 VIN = 5.0V 200 360 FREQUENCY (kHz) FREQUENCY (kHz) SUPPLY CURRENT ( 350 180 VIN = 5.0V 320 VIN = 5.0V 300 V V IN = 4.5V VIN = 4.5V IN = 4.5V 160 280 250 -60 -40 -20 0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C)
SUPPLY CURRENT vs. TEMPERATURE EFFICIENCY vs. LOAD CURRENT (FS = HIGH) (FS = LOW)
850 100 plot07 plot08 800 90 VIN = 6.0V V 80 IN = 5.5V 750 μA) 70 700 VIN = 4.5V VIN = 5.5V 60 650 50 600 V 40 IN = 5.0V EFFICIENCY (%) 550 SUPPLY CURRENT ( 30 500 20 VIN = 4.5V 450 10 400 0 -60 -40 -20 0 20 40 60 80 100 120 140 0 20 40 60 80 100 120 140 160 180 200 TEMPERATURE (°C) LOAD CURRENT (mA) www.maximintegrated.com Maxim Integrated | 3
