Datasheet LT3795 (Analog Devices) - 7

LT3795
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. EN/UVLO Hysteresis Current EN/UVLO Falling/Rising SENSE Current Limit Threshold vs Temperature Threshold vs Temperature vs Temperature
3.5 1.28 118 1.27 117 3.0 (µA) 1.26 116 2.5 115 1.25 EN/UVLO RISING THRESHOLD (V) 114 2.0 1.24 113 1.23 1.5 EN/UVLO 112 1.22 111 1.0 EN/UVLO FALLING THRESHOLD 1.21 SENSE THRESHOLD (mV) 110 0.5 EN/UVLO HYSTERESIS CURRENT 1.20 109 0 1.19 108 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3795 G14 3795 G15 3795 G16
SENSE Current Limit Threshold INTVCC Current Limit vs Duty Cycle INTVCC Current Limit vs VIN vs Temperature
120 120 100 VIN = 24V 100 90 115 80 80 110 60 VIN = 48V 70 CURRENT LIMIT (mA) CURRENT LIMIT (mA) 40 CC CC SENSE THRESHOLD (mV) 105 INTV INTV 60 20 100 0 50 0 20 40 60 80 100 0 20 40 60 80 100 120 –50 –25 0 25 50 75 100 125 150 DUTY CYCLE (%) VIN (V) TEMPERATURE (°C) 3795 G17 3795 G18 3795 G19
INTVCC Dropout Voltage INTVCC vs VIN vs Current, Temperature INTVCC vs Temperature
9 1800 8.0 VIN = 6V 8 1600 150°C 7.9 7 1400 125°C 7.8 6 1200 75°C (V) 5 1000 (V) 7.7 CC 25°C CC 4 800 DROPOUT (mV) INTV 7.6 INTV CC 0°C 3 600 INTV 7.5 2 400 1 200 7.4 –40°C –55°C 0 0 7.3 0 10 20 30 40 50 60 70 80 90 100 110 0 5 10 15 20 –50 –25 0 25 50 75 100 125 150 VIN (V) INTVCC LOAD (mA) TEMPERATURE (°C) 3795 G20 3795 G21 3795 G22 3795fc For more information www.linear.com/LT3795 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts