Datasheet LTC1871-1 (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | Wide Input Range, No RSENSE Current Mode Boost, Flyback and SEPIC Controller |
| Páginas / Página | 36 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Shutdown Mode IQ vs VIN. Shutdown … |
| Formato / tamaño de archivo | PDF / 538 Kb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS. Shutdown Mode IQ vs VIN. Shutdown Mode IQ vs Temperature. Burst Mode IQ vs VIN
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LTC1871-1
TYPICAL PERFORMANCE CHARACTERISTICS Shutdown Mode IQ vs VIN Shutdown Mode IQ vs Temperature Burst Mode IQ vs VIN
30 20 600 VIN = 5V 500 15 (μA) (μA) Q 20 Q 400 (μA) Q 10 300 10 Burst Mode I 200 SHUTDOWN MODE I SHUTDOWN MODE I 5 100 0 0 0 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 VIN (V) TEMPERATURE (°C) VIN (V) 18711 G04 18711 G05 18711 G06
Gate Drive Rise and Burst Mode IQ vs Temperature Dynamic IQ vs Frequency Fall Time vs CL
500 18 60 CL = 3300pF 16 IQ(TOT) = 550μA + Qg • f 50 400 14 12 40 (μA) Q 300 RISE TIME 10 (mA) 30 I Q 8 200 TIME (ns) Burst Mode I 6 20 FALL TIME 100 4 10 2 0 0 0 –50 –25 0 25 50 75 100 125 150 0 200 400 600 800 1000 1200 0 2000 4000 6000 8000 10000 12000 TEMPERATURE (°C) FREQUENCY (kHz) CL (pF) 18711 G07 18711 G08 18711 G09
RUN Thresholds vs VIN RUN Thresholds vs Temperature RT vs Frequency
1.5 1.40 1000 1.35 1.4 1.30 (kΩ) 100 TR 1.3 RUN THRESHOLDS (V) RUN THRESHOLDS (V) 1.25 1.2 1.20 10 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 0 100 200 300 400 500 600 700 800 900 1000 VIN (V) TEMPERATURE (°C) FREQUENCY (kHz) 18711 G10 18711 G11 18711 G12 18711fb 5
TYPICAL PERFORMANCE CHARACTERISTICS Shutdown Mode IQ vs VIN Shutdown Mode IQ vs Temperature Burst Mode IQ vs VIN
30 20 600 VIN = 5V 500 15 (μA) (μA) Q 20 Q 400 (μA) Q 10 300 10 Burst Mode I 200 SHUTDOWN MODE I SHUTDOWN MODE I 5 100 0 0 0 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 0 10 20 30 40 VIN (V) TEMPERATURE (°C) VIN (V) 18711 G04 18711 G05 18711 G06
Gate Drive Rise and Burst Mode IQ vs Temperature Dynamic IQ vs Frequency Fall Time vs CL
500 18 60 CL = 3300pF 16 IQ(TOT) = 550μA + Qg • f 50 400 14 12 40 (μA) Q 300 RISE TIME 10 (mA) 30 I Q 8 200 TIME (ns) Burst Mode I 6 20 FALL TIME 100 4 10 2 0 0 0 –50 –25 0 25 50 75 100 125 150 0 200 400 600 800 1000 1200 0 2000 4000 6000 8000 10000 12000 TEMPERATURE (°C) FREQUENCY (kHz) CL (pF) 18711 G07 18711 G08 18711 G09
RUN Thresholds vs VIN RUN Thresholds vs Temperature RT vs Frequency
1.5 1.40 1000 1.35 1.4 1.30 (kΩ) 100 TR 1.3 RUN THRESHOLDS (V) RUN THRESHOLDS (V) 1.25 1.2 1.20 10 0 10 20 30 40 –50 –25 0 25 50 75 100 125 150 0 100 200 300 400 500 600 700 800 900 1000 VIN (V) TEMPERATURE (°C) FREQUENCY (kHz) 18711 G10 18711 G11 18711 G12 18711fb 5