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LTC4263 6 4263fd TYPICAL PERFORMANCE CHARACTERISTICS RON vs Temperature Legacy Pin Current vs Voltage Current Limit and Foldback LED Pin Pulldown vs Load Current Classification Current Compliance IDD48 DC Supply Current vs Supply Voltage with Internal VDD5 IDD48 DC Supply Current vs Supply Voltage with VDD5 = 5.0V IDD5 DC Supply Current vs Supply Voltage VDD48 – VOUT 0 0 50 150 200 250 30 35 40 45 450 4263 G03 100 5 10152025 50 300 350 400 ILED LOAD CURRENT (mA) 0 0 1 3 4 4263 G04 2 10 20 30 40 50 TA = 25°C INTERNAL VDD5 VDD48 – VOUT (V) 04 0 10 30 70 80 4263 G05 20 40 60 50 812 16 20 VDD48 – VSS = 48V TA = 25°C VDD48 (V) 0 0 0.5 1.5 2.0 2.5 4263 G07 1.0 10 20 30 40 50 60 25k LOAD WITH AC ENABLED NO LOAD TA = 25°C VDD48 (V) 0 0 0.2 0.6 0.8 1.0 1.2 4263 G08 0.4 10 20 30 40 50 60 25k LOAD WITH AC ENABLED NO LOAD TA = 25°C VDD5 4.0 –3 –2 0 1 2 4263 G09 –1 4.5 5.0 5.5 6.0 25k LOAD WITH AC ENABLED NO LOAD VDD48 = 48V TEMPERATURE (°C) –40 –20 1.0 1.4 2.0 0 40 60 4263 G16 1.2 1.8 1.6 20 80 100 VLEGACY (V) 0 0 20 4 4263 G17 –20 –40 1 2 3 5 40 LEGACY MODE FORCE POWER ON MODE COMPLIANT MODE |
