Datasheet LT3796, LT3796-1 (Analog Devices) - 7

LT3796/LT3796-1
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Switching Frequency vs VREF vs VIN RT vs Switching Frequency Temperature
2.05 100 440 IREF = 0µA RT = 19.6k 2.04 430 2.03 420 2.02 410 (V) 2.01 (kΩ) 10 400 V REF R T 2.00 390 1.99 380 SWITCHING FREQUENCY (kHz) 1.98 370 1.97 1 360 0 20 40 60 80 100 0 100 200 300 400 500 600 700 800 900 1000 –50 –25 0 25 50 75 100 125 150 VIN (V) SWITCHING FREQUENCY (kHz) TEMPERATURE (°C) 37961 G09 37961 G10 37961 G11
Switching Frequency vs SS Voltage Quiescent Current vs VIN VISMON vs V(ISP-ISN)
450 2.5 2000 400 1800 350 2.0 1600 300 1400 1.5 1200 250 (mV) 1000 200 CURRENT (mA) 1.0 V ISMON 800 150 V IN SW FREQUENCY (kHz) 600 100 0.5 400 50 200 PWM = 0V 0 0 0 0 200 400 600 800 1000 1200 0 20 40 60 80 100 0 100 200 300 400 500 SS VOLTAGE (mV) VIN (V) V(ISP-ISN) (mV) 37961 G11a 37961 G12 37961 G13
EN/UVLO Hysteresis Current vs EN/UVLO Falling/Rising SENSE Current Limit Threshold vs Temperature Threshold vs Temperature Temperature
3.5 1.28 118 1.27 117 3.0 (µA) 1.26 116 2.5 1.25 EN/UVLO RISING THRESHOLD 115 2.0 (V) 114 1.24 113 1.5 1.23 EN/UVLO 112 1.22 1.0 111 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) 37961 G14 37961 G15 37961 G16 3796fb For more information www.linear.com/3796 7 Document Outline Features Applications Description Typical Application 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