Datasheet LT3964 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | Dual 36V Synchronous 1.6A Buck LED Driver with I2C |
| Seiten / Seite | 36 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Dateiformat / Größe | PDF / 3.8 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Frequency vs Temperature (1MHz)
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LT3964
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Frequency vs Temperature (1MHz) Frequency vs Temperature Frequency vs T (2MHz) emperature(2MHz) Frequency vs Temperature (200kHz)
1200 2100 210 RT = 60.4k RT = 27.4k RT = 357k 1150 2050 205 1100 2000 200 1050 1950 195 1000 1900 190 950 1850 185 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 900 1800 180 850 1750 175 800 1700 170 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3964 G10 3964 G11 3964 G12
OPENLED Threshold vs VFB vs Temperature OVFB Threshold vs Temperature Temperature FB OPENLED Threshold vs Temperature
1.22 1.25 1.15 1.24 RISING THRESHOLD 1.14 1.20 1.23 1.13 RISING THRESHOLD 1.22 1.18 1.12 1.21 1.11 (V) 1.16 (V) 1.20 (V) 1.10 V FB FALLING THRESHOLD V FB V FB 1.19 1.09 1.14 FALLING THRESHOLD 1.18 1.08 1.17 1.12 1.07 1.16 1.06 1.10 1.15 1.05 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3964 G13 3964 G14 3964 G15
SHORTLED Threshold vs Temperature C/10 Threshold vs Temperature C/10 Threshold vs T VISP–ISN vs CTRL ISP–ISN CTRL
300 30 110 295 28 100 290 26 90 285 24 RISING THRESHOLD 80 280 22 RISING THRESHOLD 70 275 20 (mV) 18 (mV) 60 (mV) 270 16 V FB 50 265 14 260 V ISP–ISN V ISP–ISN 40 12 255 FALLING THRESHOLD 30 10 FALLING THRESHOLD 250 8 20 245 6 10 240 4 0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2.0 TEMPERATURE (°C) TEMPERATURE (°C) VCTRL (V) 3964 G16 3964 G17 3964 G18 3964fb For more information www.linear.com/LT3964 7
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Frequency vs Temperature (1MHz) Frequency vs Temperature Frequency vs T (2MHz) emperature(2MHz) Frequency vs Temperature (200kHz)
1200 2100 210 RT = 60.4k RT = 27.4k RT = 357k 1150 2050 205 1100 2000 200 1050 1950 195 1000 1900 190 950 1850 185 FREQUENCY (kHz) FREQUENCY (kHz) FREQUENCY (kHz) 900 1800 180 850 1750 175 800 1700 170 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3964 G10 3964 G11 3964 G12
OPENLED Threshold vs VFB vs Temperature OVFB Threshold vs Temperature Temperature FB OPENLED Threshold vs Temperature
1.22 1.25 1.15 1.24 RISING THRESHOLD 1.14 1.20 1.23 1.13 RISING THRESHOLD 1.22 1.18 1.12 1.21 1.11 (V) 1.16 (V) 1.20 (V) 1.10 V FB FALLING THRESHOLD V FB V FB 1.19 1.09 1.14 FALLING THRESHOLD 1.18 1.08 1.17 1.12 1.07 1.16 1.06 1.10 1.15 1.05 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3964 G13 3964 G14 3964 G15
SHORTLED Threshold vs Temperature C/10 Threshold vs Temperature C/10 Threshold vs T VISP–ISN vs CTRL ISP–ISN CTRL
300 30 110 295 28 100 290 26 90 285 24 RISING THRESHOLD 80 280 22 RISING THRESHOLD 70 275 20 (mV) 18 (mV) 60 (mV) 270 16 V FB 50 265 14 260 V ISP–ISN V ISP–ISN 40 12 255 FALLING THRESHOLD 30 10 FALLING THRESHOLD 250 8 20 245 6 10 240 4 0 –55 –25 5 35 65 95 125 155 –55 –25 5 35 65 95 125 155 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2.0 TEMPERATURE (°C) TEMPERATURE (°C) VCTRL (V) 3964 G16 3964 G17 3964 G18 3964fb For more information www.linear.com/LT3964 7