Datasheet LT8361 (Analog Devices) - 5

LT8361
TYPICAL PERFORMANCE CHARACTERISTICS FBX Positive Regulation Voltage FBX Negative Regulation Voltage EN/UVLO Pin Thresholds vs Temperature vs Temperature vs Temperature
1.632 –0.780 1.74 VIN = 12V VIN = 12V 1.624 –0.785 1.72 1.70 EN/UVLO RISING (TURN–ON) 1.616 –0.790 1.68 1.608 –0.795 TAGE (V) 1.66 TAGE (V) 1.600 TAGE (V) –0.800 1.64 1.592 –0.805 1.62 EN/UVLO FALLING (TURN–OFF) FBX VOL FBX VOL 1.60 1.584 –0.810 EN/UVLO PIN VOL 1.58 1.576 –0.815 1.56 1.568 –0.820 1.54 –50 –25 0 25 50 75 100 125 150 175 –50 –25 0 25 50 75 100 125 150 175 –50 –25 0 25 50 75 100 125 150 175 JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) 8361 G01 8361 G02 8361 G03
Switching Frequency Normalized Switching Frequency vs Temperature Switching Frequency vs VIN vs FBX Voltage
2.10 2.10 125 VIN = 12V VIN = 12V 2.08 2.08 2.06 2.06 100 2.04 2.04 2.02 2.02 75 2.00 2.00 1.98 1.98 50 1.96 1.96 1.94 SWITCHING FREQUENCY (MHz) 1.94 SWITCHING FREQUENCY (MHz) 25 1.92 1.92 NORMALIZED SWITCHING FREQUENCY (%) 1.90 1.90 0 –50 –25 0 25 50 75 100 125 150 175 0 5 10 15 20 25 30 35 40 45 50 55 60 –0.8 –0.4 0.0 0.4 0.8 1.2 1.6 JUNCTION TEMPERATURE (°C) VIN (V) VOLTAGE (V) 8361 G04 8361 G05 8361 G06
Switch Current Limit Switch Minimum On-Time Switch Minimum Off-Time vs Duty Cycle vs Temperature vs Temperature
3.0 100 100 VIN = 12V VIN = 12V VIN = 12V 2.9 90 90 2.8 80 80 2.7 70 70 2.6 60 60 2.5 50 50 2.4 40 40 2.3 30 30 MINIMUM ON TIME (ns) MINIMUM OFF TIME (ns) SWITCH CURRENT LIMIT (A) 2.2 20 20 2.1 10 10 2.0 0 0 0 10 20 30 40 50 60 70 80 90 100 –50 –25 0 25 50 75 100 125 150 175 –50 –25 0 25 50 75 100 125 150 175 DUTY CYCLE (%) JUNCTION TEMPERATURE (°C) JUNCTION TEMPERATURE (°C) 8361 G07 8361 G08 8361 G09 Rev 0 For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts