Datasheet LT8330 (Analog Devices) - 4

LT8330
TYPICAL PERFORMANCE CHARACTERISTICS FBX Positive Regulation Voltage FBX Negative Regulation Voltage EN/UVLO Pin Thresholds vs Temperature vs Temperature vs Temperature
1.630 –0.785 1.74 VIN = 12V VIN = 12V VIN = 12V 1.72 1.620 –0.790 1.70 1.68 1.610 –0.795 TAGE (V) 1.66 EN/UVLO RISING (TURN-ON) TAGE (V) 1.600 TAGE (V) –0.800 1.64 1.62 FBX VOL 1.590 FBX VOL –0.805 1.60 EN/UVLO PIN VOL EN/UVLO FALLING (TURN-OFF) 1.58 1.580 –0.810 1.56 1.570 –0.815 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) 8330 G01 8330 G02 8330 G03
Switching Frequency Normalized Switching Frequency vs Temperature Switching Frequency vs VIN vs FBX Voltage
2.10 2.15 125 VIN = 24V V 2.08 IN = 24V 2.10 2.06 100 2.04 2.05 2.02 75 2.00 2.00 1.98 50 1.95 1.96 1.94 SWITCHING FREQUENCY (MHz) SWITCHING FREQUENCY (MHz) 25 1.90 1.92 NORMALIZED SWITCHING FREQUENCY (%) 1.90 1.85 0 –50 –25 0 25 50 75 100 125 150 175 0 5 10 15 20 25 30 35 40 45 –0.8 –0.4 0.0 0.4 0.8 1.2 1.6 JUNCTION TEMPERATURE (°C) VIN (V) FBX VOLTAGE (V) 8330 G04 8330 G05 8330 G06
Switch Current Limit vs Duty Switch Minimum On-Time Switch Minimum Off-Time Cycle vs Temperature vs Temperature
1.40 100 60 V V V IN = 12V IN = 24V IN = 24V 90 55 1.30 80 50 70 1.20 45 60 40 50 1.10 MINIMUM ON–TIME (ns) MINIMUM OFF–TIME (ns) SWITCH CURRENT LIMIT (A) 40 35 1.00 30 30 0 20 40 60 80 100 –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) 8330 G07 8330 G08 8330 G09 Rev. B 4 For more information www.analog.com 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