Datasheet LT3517 (Analog Devices) - 5

LT3517
typical perForMance characteristics VISP – VISN Threshold Switch Current Limit Oscillator Frequency vs Temperature vs Temperature vs Temperature
104 2.5 2.5 VIN = 5V VIN = 5V VIN = 5V 103 VISP = 24V RT = 6.04k VC = 1V 2.0 2.3 102 VCTRL = 2V 101 1.5 2.1 100 THRESHOLD (mV) ISN 99 1.0 1.9 TOR FREQUENCY (MHz) – V 98 V ISP SWITCH CURRENT LIMIT (A) 0.5 OSCILLA 1.7 97 96 0 1.5 –40 –20 0 20 40 60 80 100 120 140 160 –40 –20 0 20 40 60 80 100 120 140 160 –40 –20 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3517 G04 3518 G05 3517 G06
Reference Voltage VISP – VISN Threshold vs VISP vs Temperature Quiescent Current vs VIN
105 2.02 8 VCTRL = 2V V TA = 25°C 104 IN = 5V VIN = 5V 7 VC = 0V 103 TA = 25°C VC = 1V 2.01 6 102 101 5 100 (V) 2.00 4 THRESHOLD (mV) V REF ISN 99 CURRENT (mA) 3 – V 98 V IN 1.99 2 V ISP 97 96 1 95 1.98 0 0 10 20 30 40 50 –40 –20 0 20 40 60 80 100 120 140 160 0 10 20 30 40 VISP (V) TEMPERATURE (°C) VIN (V) 3517 G07 3517 G08 3517 G09
FB Pin Threshold vs Temperature PMOS Turn-On PMOS Turn-Off
1.04 VIN = 5V 1.03 5V 5V PWM 1.02 PWM 0V 0V 1.01 40V 40V 1.00 TG TG FB PIN THRESHOLD (V) 30V 30V 0.99 0.98 3517 G11 –40 –20 0 20 40 60 80 100 120 140 160 V 3517 G11 ISP = 40V 200ns/DIV VISP = 40V 200ns/DIV TEMPERATURE (°C) 3517 G10 3517fh For more information www.linear.com/LT3517 5 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 Related Parts