Datasheet LT3651-4.1, LT3651-4.2 (Analog Devices) - 6

LT3651-4.1/LT3651-4.2
TYPICAL PERFORMANCE CHARACTERISTICS C/10 Threshold (VSENSE –VBAT) Top Side Switch VON vs Temperature vs Temperature Bottom Side VON vs Temperature
11 700 –50 ISW = 4A ISW = 4A 650 10 –100 600 (mV) (mV) BAT 9 SW 550 (mV) –150 – V – V V SW V IN V SENSE 500 8 –200 450 7 400 –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) 365142 G10 365142 G11 365142 G12
Switch Drive (IBST/ISW) Boost Switch Drive vs Temperature Boost Drive vs Boost Voltage vs Switch Current
35 60 70 ISW = 4A ISW = 4A 60 50 30 50 /A) 40 (mA 25 (mA/A) (mA/A) 40 /I SW /I SW /I SW 30 I BST I BST I BST 30 20 20 20 15 10 10 –50 –25 0 25 50 75 100 125 2.5 3.5 4.5 5.5 6.5 7.5 0 1 2 3 4 5 TEMPERATURE (°C) VBST – VIN (V) ISW (A) 365142 G13 365142 G14 365142 G15
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 200 150 –0.5 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) 365142 G16 FREQUENCY (kHz) 365142 G17 365142ff 6 For more information www.linear.com/LT3651-4.1 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Pin Functions Block Diagram Operation Applications Information Typical Applications Revision History Typical Application Related Parts