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Datasheet LT3519, LT3519-1, LT3519-2 (Analog Devices) - 5

ПроизводительAnalog Devices
ОписаниеLED Driver with Integrated Schottky Diode
Страниц / Страница20 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted). …
Формат / Размер файлаPDF / 272 Кб
Язык документаанглийский

TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted). FB Regulation Voltage. FB OPENLED Threshold

TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted) FB Regulation Voltage FB OPENLED Threshold

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LT3519/LT3519-1/LT3519-2
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise noted) FB Regulation Voltage FB OPENLED Threshold SHDN/UVLO Threshold vs Temperature vs Temperature vs Temperature
1.25 100 1.30 VIN = 12V VIN = 12V VIN = 12V 90 1.24 80 1.28 70 SHDN/UVLO RISING 1.23 (mV) 1.26 60 (V) 50 FBV OPENLED 1.22 FB_ 40 1.24 -V /UVLO THRESHLD (V) SHDN/UVLO FALLING FBV 30 SHDN 1.21 20 1.22 10 1.20 0 1.20 –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) 3519 G10 3519 G11 3519 G12
Switch Saturation Voltage Schottky Leakage Current (VCESAT) vs Temperature Schottky Forward Voltage Drop
500 10 900 VR = 24V 450 9 800 400 8 700 350 7 600 300 6 500 250 5 ARD CURRENT (mA) W 400 200 4 300 SWITCH VOLTAGE (V) 150 3 TKY FOR 100 2 200 SCHOTTKY LEAKAGE CURRENT (μA) 50 1 SCHOT 100 0 0 0 0 200 400 600 800 1000 –50 –25 0 25 50 75 100 125 0 200 400 600 800 1000 SWITCH CURRENT (mA) TEMPERATURE (°C) SCHOTTKY FORWARD VOLTAGE DROP (mV) 3519 G13 3519 G14 3519 G15
Oscillator Frequency Oscillator Frequency vs Temperature (LT3519-1) vs Temperature (LT3519-2)
1.2 2.5 2.4 1.1 2.3 1.0 2.2 0.9 FREQUENCY (MHz) FREQUENCY (MHz) 2.1 0.8 2.0 0.7 1.9 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) 3519 G16 3519 G17 3519fa 5
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