Datasheet LTC3854 (Analog Devices) - 5

LTC3854
TYPICAL PERFORMANCE CHARACTERISTICS Switching Waveforms at High Switching Waveforms at No Load Duty Cycle, No Load
VOUT = 5V VOUT = 2.5V TG TG BG BG I I L L 1µs/DIV 3854 G06 2µs/DIV 3854 G07
Quiescent Current vs VIN Quiescent Current vs Temperature INTVCC vs Input Voltage
1.17 1.30 5.05 1.16 1.25 5.00 1.15 1.20 1.14 1.15 4.95 (V) 1.13 1.10 V CC 1.12 1.05 INT 4.90 QUIESCENT CURRENT (mA) 1.11 QUIESCENT CURRENT (mA) 1.00 4.85 1.10 0.95 1.09 0.90 4.80 6 11 16 21 26 31 36 –45 –25 –5 15 35 55 75 95 4 9 14 19 24 29 34 39 VIN (V) TEMPERATURE (°C) VIN (V) 3854 G08 3854 G09 3854 G10
Maximum Current Sense Voltage Maximum Current Sense Threshold Maximum Current Sense Threshold vs Feedback Voltage vs Sense Common Mode Voltage vs Duty Cycle (Current Foldback)
60 65 60 58 60 50 56 TAGE (mV) 54 55 40 (mV) 52 (mV) 50 50 30 48 V SENSE(MAX) 45 20 46 V SENSE(MAX) 44 40 10 42 MAXIMUM CURRENT SENSE VOL 40 35 0 0 1 2 3 4 5 6 7 0 20 40 60 80 100 120 0 0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 COMMON MODE VOLTAGE (V) DUTY CYCLE (%) FB (V) 3854 G11 3854 G12 3854 G13 3854fb 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Related Parts