Datasheet LT3964 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | Dual 36V Synchronous 1.6A Buck LED Driver with I2C |
| Seiten / Seite | 36 / 6 — 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. EN/UVLO Thresholds vs. VIN Shutdown Current vs
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LT3964
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. EN/UVLO Thresholds vs VIN Shutdown Current vs Temperature EN/UVLO Current vs Temperature Temperature
1.26 4.4 260 EN/UVLO = 1.1V VIN = 6V 1.25 V 4.2 240 IN = 24V V 1.24 IN = 36V 220 EN/UVLO = 1.1V 1.23 RISING THRESHOLD 4.0 1.22 200 (V) 3.8 (µA) 1.21 180 1.20 3.6 V EN/UVLO I EN/UVLO 160 1.19 FALLING THRESHOLD 3.4 SHUTDOWN CURRENT (µA) 140 1.18 V IN 3.2 1.17 120 1.16 3.0 100 –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 G1 3964 G2 3964 G3
VIN Quiescent Current vs Temperature INTVCC vs Temperature (3
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VIN) INTV INT CC V vs Current (3
•
V CC vs LOAD IN) CC
3.0 4.20 V 4.10 IN = 6V V V V IN = 6V 2.9 IN = 24V IN = 6V 4.08 4.15 V V V IN = 24V IN = 36V IN = 24V V VIN = 36V 2.8 4.06 IN = 36V 4.10 4.04 2.7 4.05 4.02 (V) 2.6 (V) 4.00 4.00 V CC V CC 2.5 INT 3.98 INT 3.95 QUIESCENT CURRENT (mA) 2.4 3.96 3.90 V IN 3.94 2.3 3.85 3.92 2.2 3.80 –55 –25 5 35 65 95 125 155 3.90–55 –25 5 35 65 95 125 155 0 5 10 15 20 25 30 35 40 45 50 55 60 TEMPERATURE (°C) TEMPERATURE (°C) LOAD CURRENT (mA) 3964 G4 3964 G06 3964 G05
INTV INT CC V UVLO vs Temperature INTV CC UVLO vs Temperature CC Current Limit vs V CC IN Current Limit vs V Switching Frequency vs R IN T
3.30 55 10 INTV 3.28 CC = 0V 50 3.26 3.24 RISING THRESHOLD 45 3.22 (V) (mA) 3.20 40 1 V CC VCC INT 3.18 FALLING THRESHOLD I INT 35 3.16 3.14 SWITCHING FREQUENCY (MHz) 30 3.12 3.10 25 0.1 –55 –25 5 35 65 95 125 155 0 6 12 18 24 30 36 10 100 1000 TEMPERATURE (°C) V R IN (V) T (kΩ) 3964 G07 3964 G08 3964 G09 3964fb 6 For more information www.linear.com/LT3964
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. EN/UVLO Thresholds vs VIN Shutdown Current vs Temperature EN/UVLO Current vs Temperature Temperature
1.26 4.4 260 EN/UVLO = 1.1V VIN = 6V 1.25 V 4.2 240 IN = 24V V 1.24 IN = 36V 220 EN/UVLO = 1.1V 1.23 RISING THRESHOLD 4.0 1.22 200 (V) 3.8 (µA) 1.21 180 1.20 3.6 V EN/UVLO I EN/UVLO 160 1.19 FALLING THRESHOLD 3.4 SHUTDOWN CURRENT (µA) 140 1.18 V IN 3.2 1.17 120 1.16 3.0 100 –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 G1 3964 G2 3964 G3
VIN Quiescent Current vs Temperature INTVCC vs Temperature (3
•
VIN) INTV INT CC V vs Current (3
•
V CC vs LOAD IN) CC
3.0 4.20 V 4.10 IN = 6V V V V IN = 6V 2.9 IN = 24V IN = 6V 4.08 4.15 V V V IN = 24V IN = 36V IN = 24V V VIN = 36V 2.8 4.06 IN = 36V 4.10 4.04 2.7 4.05 4.02 (V) 2.6 (V) 4.00 4.00 V CC V CC 2.5 INT 3.98 INT 3.95 QUIESCENT CURRENT (mA) 2.4 3.96 3.90 V IN 3.94 2.3 3.85 3.92 2.2 3.80 –55 –25 5 35 65 95 125 155 3.90–55 –25 5 35 65 95 125 155 0 5 10 15 20 25 30 35 40 45 50 55 60 TEMPERATURE (°C) TEMPERATURE (°C) LOAD CURRENT (mA) 3964 G4 3964 G06 3964 G05
INTV INT CC V UVLO vs Temperature INTV CC UVLO vs Temperature CC Current Limit vs V CC IN Current Limit vs V Switching Frequency vs R IN T
3.30 55 10 INTV 3.28 CC = 0V 50 3.26 3.24 RISING THRESHOLD 45 3.22 (V) (mA) 3.20 40 1 V CC VCC INT 3.18 FALLING THRESHOLD I INT 35 3.16 3.14 SWITCHING FREQUENCY (MHz) 30 3.12 3.10 25 0.1 –55 –25 5 35 65 95 125 155 0 6 12 18 24 30 36 10 100 1000 TEMPERATURE (°C) V R IN (V) T (kΩ) 3964 G07 3964 G08 3964 G09 3964fb 6 For more information www.linear.com/LT3964