Datasheet LT3651-8.2, LT3651-8.4 (Analog Devices) - 6

LT3651-8.2/LT3651-8.4
TYPICAL PERFORMANCE CHARACTERISTICS Input Current Limit Voltage Topside Switch VON Bottom Side Switch VON Threshold vs Temperature vs Temperature vs Temperature
2.0 700 –50 ISW = 4A ISW = 4A 1.5 650 1.0 RILIM OPEN –100 600 ) (mV) 0.5 (mV) CLN 0 RILIM = 10k SW 550 (mV) –150 – V – V V SW CLP –0.5 V IN 500 ∆(V –1.0 –200 450 –1.5 –2.0 400 –250 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (˚C) TEMPERATURE (°C) 36518284 G09 36518284 G10 26518284 G11
Boost Drive vs Switch Current Boost Drive vs Boost Voltage
50 24 ISW = 4A 40 23 30 (mA/A) (mA/A) 22 /I SW 20 /I SW I BST I BST 21 10 0 20 0 1 2 3 4 5 2 3 4 5 6 7 8 ISW (A) VBST – VIN (V) 36518284 G14 36518284 G13
Oscillator Frequency Timer Resistor (RT) vs Temperature vs Period and Frequency
1.0 400 RT = 54.9k 350 0.5 300 250 0 (kΩ) R T 200 –0.5 150 FREQUENCY DEVIATION (%) 100 –1.0 50 –50 –25 0 25 50 75 100 125 1 2 3 4 5 6 TEMPERATURE (°C) 1000 500 333 250 200 167 PERIOD (µs) 26518284 G15 FREQUENCY (kHz) 36518284 G16 36518284fa 6 For more information www.linear.com/LT3651-8.2 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 Typical Application Related Parts