Datasheet LTM8042, LTM8042-1 (Analog Devices) - 6

LTM8042/LTM8042-1
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. LTM8042 Maximum LED Current Maximum LED Current vs Input vs VIN, Buck Mode Voltage, Buck-Boost Mode
1000 1200 900 800 1000 700 800 600 500 600 400 3.8V AT 1A 7.4V AT 1A LED CURRENT (mA) 300 7.4V AT 1A 400 10.9V AT 1A 10.9V AT 1A 14.5V AT 1A 200 14.5V AT 1A 18.1V AT 1A 18.1V AT 1A MAXIMUM LED CURRENT (mA) 200 21.4V AT 1A 100 21.4V AT 1A 24.8V AT 1A 0 24.8V AT 1A 0 28.2V AT 1A 0 5 10 15 20 25 30 0 10 20 30 40 VIN (N) INPUT VOLTAGE (V) 80421 G18 80421 G19
Junction Temperature Rise Quiescent Current vs Load, Boost Operation, LED Current vs CTL Voltage vs Input Voltage, Open LED 8.3V at 1A LED String
40 25 100 35 20 80 30 5VIN 25 15 60 20 40 15 10 TEMPERATURE (°C) 10 LED CURRENT SCALING (%) 20 QUIESCENT CURRENT (mA) 5 5 0 0 0 0 200 400 600 800 1000 1200 0 5 10 15 20 25 30 0 200 400 600 800 1000 ADJUST VOLTAGE (mV) INPUT VOLTAGE (V) LED CURRENT (mA) 80421 G20 80421 G21 80421 G22
Junction Temperature Rise Junction Temperature Rise Junction Temperature Rise vs Load, Boost Operation, vs Load, Boost Operation, vs Load, Boost Operation, 10.9V at 1A LED String 13.6V at 1A LED String 18.1V at 1A LED String
20 25 35 18 30 16 20 14 25 7V 8VIN IN 9VIN 12 15 20 10 8 10 15 TEMPERATURE (°C) 6 TEMPERATURE (°C) TEMPERATURE (°C) 10 4 5 5 2 0 0 0 0 200 400 600 800 1000 0 200 400 600 800 1000 0 200 400 600 800 1000 LED CURRENT (mA) LED CURRENT (mA) LED CURRENT (mA) 80421 G23 80421 G24 80421 G25 80421fb 6 For more information www.linear.com/LTM8042