Datasheet LTC3864 (Analog Devices) - 6
| Fabricante | Analog Devices |
| Descripción | 60V Low IQ Step-Down DC/DC Controller with 100% Duty Cycle Capability |
| Páginas / Página | 30 / 6 — Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. … |
| Formato / tamaño de archivo | PDF / 709 Kb |
| Idioma del documento | Inglés |
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Overcurrent Protection. Short-Ciruit Protection
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LTC3864
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Overcurrent Protection Short-Ciruit Protection VIN Line Transient Behavior
3.2A SHORT- CIRCUIT TRIGGER SHORT-CIRCUIT REGION VIN 20V/DIV ILOAD 1A 1A 1A/DIV VOUT 5V/DIV SOFT RECOVERY GATE IL FROM SHORT 20V/DIV 1A/DIV VOUT 500mV/DIV IL 2A/DIV V V OUT OUT DROOPS DUE TO 50mV/DIV REACHING CURRENT LIMIT 20ms/DIV 3864 G10 500µs/DIV 3864 G11 2ms/DIV 3864 G12 VIN = 12V, VOUT = 5V VIN = 12V, VOUT = 5V VIN = 12V, SURGE TO 48V FIGURE 8 CIRCUIT FIGURE 8 CIRCUIT VOUT = 5V I
Pulse-Skipping Mode Input
LOAD = 200mA, FIGURE 8 CIRCUIT
Burst Mode Input Current Over Current Over Input Voltage Shutdown Current Over Input Input Voltage (No Load) (No Load) Voltage
70 950 25 VIN = 12V, VOUT = 5V VIN = 12V, VOUT = 5V FIGURE 8 CIRCUIT 65 ILOAD = 0A ILOAD = 0A FIGURE 8 CIRCUIT FIGURE 8 CIRCUIT 900 20 60 55 850 15 (µA) 50 (µA) (µA) I VIN I VIN I VIN 45 800 10 40 750 5 35 30 700 0 0 10 20 30 40 50 60 0 10 20 30 40 50 60 0 10 20 30 40 50 60 VIN(V) VIN (V) VIN (V) 3864 G13 3864 G14 3864 G15
Output Regulation Over Input Output Regulation Over Load Output Regulation Over Voltage Current Temperature
0.010 0.010 1.0 VOUT = 5V VIN = 12V, VOUT = 5V VIN = 12V, VOUT = 5V ILOAD = 200mA ILOAD NORMALIZED AT ILOAD = 1A 0.8 ILOAD = 200mA VOUT NORMALIZED AT VIN = 12V FIGURE 8 CIRCUIT V 0.6 OUT NORMALIZED TO TA = 25°C 0.005 FIGURE 8 CIRCUIT 0.005 FIGURE 8 CIRCUIT (%) (%) (%) 0.4 0.2 ∆V OUT ∆V OUT ∆V OUT 0 0 0 –0.2 –0.4 NORMALIZED –0.005 NORMALIZED –0.005 NORMALIZED –0.6 Burst Mode OPERATION Burst Mode OPERATION –0.8 Burst Mode OPERATION PULSE-SKIPPING PULSE-SKIPPING PULSE-SKIPPING –0.010 –0.010 –1.0 0 10 20 30 40 50 60 –0.5 0 0.5 1 1.5 2 2.5 –75 –25 25 75 125 175 VIN (V) ILOAD (A) TEMPERATURE (°C) 3864 G16 3864 G17 3864 G18 3864fa 6 For more information www.linear.com/LTC3864 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics TA = 25°C, unless otherwise noted. Overcurrent Protection Short-Ciruit Protection VIN Line Transient Behavior
3.2A SHORT- CIRCUIT TRIGGER SHORT-CIRCUIT REGION VIN 20V/DIV ILOAD 1A 1A 1A/DIV VOUT 5V/DIV SOFT RECOVERY GATE IL FROM SHORT 20V/DIV 1A/DIV VOUT 500mV/DIV IL 2A/DIV V V OUT OUT DROOPS DUE TO 50mV/DIV REACHING CURRENT LIMIT 20ms/DIV 3864 G10 500µs/DIV 3864 G11 2ms/DIV 3864 G12 VIN = 12V, VOUT = 5V VIN = 12V, VOUT = 5V VIN = 12V, SURGE TO 48V FIGURE 8 CIRCUIT FIGURE 8 CIRCUIT VOUT = 5V I
Pulse-Skipping Mode Input
LOAD = 200mA, FIGURE 8 CIRCUIT
Burst Mode Input Current Over Current Over Input Voltage Shutdown Current Over Input Input Voltage (No Load) (No Load) Voltage
70 950 25 VIN = 12V, VOUT = 5V VIN = 12V, VOUT = 5V FIGURE 8 CIRCUIT 65 ILOAD = 0A ILOAD = 0A FIGURE 8 CIRCUIT FIGURE 8 CIRCUIT 900 20 60 55 850 15 (µA) 50 (µA) (µA) I VIN I VIN I VIN 45 800 10 40 750 5 35 30 700 0 0 10 20 30 40 50 60 0 10 20 30 40 50 60 0 10 20 30 40 50 60 VIN(V) VIN (V) VIN (V) 3864 G13 3864 G14 3864 G15
Output Regulation Over Input Output Regulation Over Load Output Regulation Over Voltage Current Temperature
0.010 0.010 1.0 VOUT = 5V VIN = 12V, VOUT = 5V VIN = 12V, VOUT = 5V ILOAD = 200mA ILOAD NORMALIZED AT ILOAD = 1A 0.8 ILOAD = 200mA VOUT NORMALIZED AT VIN = 12V FIGURE 8 CIRCUIT V 0.6 OUT NORMALIZED TO TA = 25°C 0.005 FIGURE 8 CIRCUIT 0.005 FIGURE 8 CIRCUIT (%) (%) (%) 0.4 0.2 ∆V OUT ∆V OUT ∆V OUT 0 0 0 –0.2 –0.4 NORMALIZED –0.005 NORMALIZED –0.005 NORMALIZED –0.6 Burst Mode OPERATION Burst Mode OPERATION –0.8 Burst Mode OPERATION PULSE-SKIPPING PULSE-SKIPPING PULSE-SKIPPING –0.010 –0.010 –1.0 0 10 20 30 40 50 60 –0.5 0 0.5 1 1.5 2 2.5 –75 –25 25 75 125 175 VIN (V) ILOAD (A) TEMPERATURE (°C) 3864 G16 3864 G17 3864 G18 3864fa 6 For more information www.linear.com/LTC3864 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts