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LT3689EMSE-PBF Datasheet(PDF) 7 Page - Linear Technology |
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LT3689EMSE-PBF Datasheet(HTML) 7 Page - Linear Technology |
7 / 32 page LT3689/LT3689-5 7 3689fa TYPICAL PERFORMANCE CHARACTERISTICS EN/UVLO Pin Current EN/UVLO Pin Threshold Boost Diode Forward Voltage EN/UVLO Hysteresis Current Switching Waveform: Burst Mode Operation Switching Waveform: Transition from Burst Mode to Full Frequency Switching Waveform: Full Frequency Continuous Operation Power-On-Reset Threshold vs Temperature VEN/UVLO (V) 3689 G22 05 10 15 20 30 25 35 6 7 5 4 1 0 3 2 TA = 150°C TA = –50°C TA = 25°C TEMPERATURE (°C) –50 1.200 1.220 1.240 1.260 –25 0 25 50 100 75 125 1.280 1.300 1.210 1.230 1.250 1.270 1.290 150 3689 G23 EN/UVLO THRESHOLD RISING EN/UVLO THRESHOLD FALLING VIN = 12V BOOST DIODE CURRENT (mA) 3689 G24 010 20 30 40 50 600 700 800 500 400 100 0 300 900 200 TA = 150°C TA = 25°C TA = –50°C TEMPERATURE (°C) 3.0 3.5 4.0 4.5 5.0 3689 G25 –50 –25 0 25 50 100 75 125 150 5μs/DIV VOUT 10mV/DIV VIN = 12V, FRONT PAGE APPLICATION ILOAD = 6mA VSW 5V/DIV IL 0.2A/DIV 3689 G26 1μs/DIV VOUT 10mV/DIV VIN = 12V, FRONT PAGE APPLICATION ILOAD = 60mA VSW 5V/DIV IL 0.2A/DIV 3689 G27 1μs/DIV VOUT 10mV/DIV VIN = 12V, FRONT PAGE APPLICATION ILOAD = 600mA VSW 10V/DIV IL 0.5A/DIV 3689 G28 TEMPERATURE (°C) 0.710 0.715 0.720 0.725 0.730 3689 G29 –50 –25 0 25 50 100 75 125 150 |
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