Datasheet LT3758, LT3758A (Analog Devices) - 6

LT3758/LT3758A
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Switching Frequency SENSE Current Limit Threshold vs Temperature vs Temperature
330 120 RT = 41.2K 320 115 310 300 110 290 SENSE THRESHOLD (mV) 105 SWITCHING FREQUENCY (kHz) 280 270 100 –75 –50 –25 0 25 50 75 100 125 150 –75 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) 3758 G07 3758 G08
SENSE Current Limit Threshold SHDN/UVLO Threshold vs Duty Cycle vs Temperature
115 1.28 1.26 110 1.24 SHDN/UVLO RISING 105 1.22 /UVLO VOLTAGE (V) SHDN/UVLO FALLING SENSE THRESHOLD (mV) 100 SHDN 1.20 95 1.18 0 20 40 60 80 100 –75 –50 –25 0 25 50 75 100 125 150 DUTY CYCLE (%) TEMPERATURE (°C) 3758 G10 3758 G09
SHDN/UVLO Hysteresis Current SHDN/UVLO Current vs Voltage vs Temperature
50 2.4 40 2.2 30 (µA) 2.0 /UVLO 20 /UVLO CURRENT (µA) I SHDN SHDN 1.8 10 0 1.6 0 20 40 60 80 100 –75 –50 –25 0 25 50 75 100 125 150 SHDN/UVLO VOLTAGE (V) TEMPERATURE (°C) 3758 G12 3758 G11 Rev F 6 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Applications Related Parts Typical Applications Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts