Datasheet LTC3863 (Analog Devices) - 6
| Fabricante | Analog Devices |
| Descripción | 60V Low IQ Inverting DC/DC Controller |
| Páginas / Página | 38 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Revisión | B |
| Formato / tamaño de archivo | PDF / 1.5 Mb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Overcurrent Protection. Short-Circuit Protection
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LTC3863
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Overcurrent Protection Short-Circuit Protection VIN Line Transient Behavior
SHORT- 48V ILOAD CIRCUIT VIN 1A/DIV TRIGGER 20V/DIV 12V V I OUT GATE L 5V/DIV 1A/DIV 20V/DIV IL SOFT-START 1A/DIV FOLDBACK VOUT 500mV/DIV C VOUT OUT DISCHARGE RECOVERY 50mV/DIV VIN = 12V 20ms/DIV 3863 G10 VIN = 12V 500µs/DIV 3863 G11 10ms/DIV 3863 G12 VOUT = –5V VOUT = –5V VIN = 12V, SURGE TO 48V ILOAD2 = 1A TO 3.2A ILOAD2 = 1A TO SHORT-CIRCUIT VOUT = –5V FIGURE 7 CIRCUIT FIGURE 7 CIRCUIT ILOAD = 500mA FIGURE 7 CIRCUIT
Pulse-Skipping Mode Input Burst Mode Input Current Over Current Over Input Voltage Shutdown Current Over Input Input Voltage (No Load) (No Load) Voltage
140 1100 30 VIN = 12V VIN = 12V VIN = 12V VOUT = –5V 1050 VOUT = –5V FIGURE 7 CIRCUIT 135 ILOAD = 0A ILOAD = 0A 25 FIGURE 7 CIRCUIT 1000 FIGURE 7 CIRCUIT 130 20 950 (µA) 125 (µA) 900 (µA) 15 I VIN I VIN I VIN 850 120 10 800 115 5 750 110 700 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) 3863 G13 3863 G14 3863 G15
Output Regulation Over Input Output Regulation Over Load Output Regulation Over Voltage Current Temperature
1.0 1.0 1.0 VOUT = –5V VIN = 12V, VOUT = –5V VIN = 12V, VOUT = –5V ILOAD = 100mA ILOAD NORMALIZED AT ILOAD = 1A 0.8 ILOAD = 200mA NOMALIZED AT VIN = 12V FIGURE 7 CIRCUIT V 0.6 OUT NOMALIZED TO TA = 25°C 0.5 FIGURE 7 CIRCUIT 0.5 FIGURE 7 CIRCUIT (%) (%) (%) 0.4 OUT OUT OUT 0.2 0 0 0 –0.2 –0.4 NORMALIZED ∆V –0.5 NORMALIZED ∆V –0.5 NORMALIZED ∆V –0.6 PULSE-SKIPPING MODE PULSE-SKIPPING MODE –0.8 PULSE-SKIPPING MODE Burst Mode OPERATION Burst Mode OPERATION Burst Mode OPERATION –1.0 –1.0 –1.0 0 10 20 30 40 50 60 –0.5 0 0.5 1.0 1.5 2.0 2.5 –75 –25 25 75 125 175 VIN (V) ILOAD (A) TEMPERATURE (°C) 3863 G16 3863 G17 3963 G18 Rev. B 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram 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-Circuit Protection VIN Line Transient Behavior
SHORT- 48V ILOAD CIRCUIT VIN 1A/DIV TRIGGER 20V/DIV 12V V I OUT GATE L 5V/DIV 1A/DIV 20V/DIV IL SOFT-START 1A/DIV FOLDBACK VOUT 500mV/DIV C VOUT OUT DISCHARGE RECOVERY 50mV/DIV VIN = 12V 20ms/DIV 3863 G10 VIN = 12V 500µs/DIV 3863 G11 10ms/DIV 3863 G12 VOUT = –5V VOUT = –5V VIN = 12V, SURGE TO 48V ILOAD2 = 1A TO 3.2A ILOAD2 = 1A TO SHORT-CIRCUIT VOUT = –5V FIGURE 7 CIRCUIT FIGURE 7 CIRCUIT ILOAD = 500mA FIGURE 7 CIRCUIT
Pulse-Skipping Mode Input Burst Mode Input Current Over Current Over Input Voltage Shutdown Current Over Input Input Voltage (No Load) (No Load) Voltage
140 1100 30 VIN = 12V VIN = 12V VIN = 12V VOUT = –5V 1050 VOUT = –5V FIGURE 7 CIRCUIT 135 ILOAD = 0A ILOAD = 0A 25 FIGURE 7 CIRCUIT 1000 FIGURE 7 CIRCUIT 130 20 950 (µA) 125 (µA) 900 (µA) 15 I VIN I VIN I VIN 850 120 10 800 115 5 750 110 700 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) 3863 G13 3863 G14 3863 G15
Output Regulation Over Input Output Regulation Over Load Output Regulation Over Voltage Current Temperature
1.0 1.0 1.0 VOUT = –5V VIN = 12V, VOUT = –5V VIN = 12V, VOUT = –5V ILOAD = 100mA ILOAD NORMALIZED AT ILOAD = 1A 0.8 ILOAD = 200mA NOMALIZED AT VIN = 12V FIGURE 7 CIRCUIT V 0.6 OUT NOMALIZED TO TA = 25°C 0.5 FIGURE 7 CIRCUIT 0.5 FIGURE 7 CIRCUIT (%) (%) (%) 0.4 OUT OUT OUT 0.2 0 0 0 –0.2 –0.4 NORMALIZED ∆V –0.5 NORMALIZED ∆V –0.5 NORMALIZED ∆V –0.6 PULSE-SKIPPING MODE PULSE-SKIPPING MODE –0.8 PULSE-SKIPPING MODE Burst Mode OPERATION Burst Mode OPERATION Burst Mode OPERATION –1.0 –1.0 –1.0 0 10 20 30 40 50 60 –0.5 0 0.5 1.0 1.5 2.0 2.5 –75 –25 25 75 125 175 VIN (V) ILOAD (A) TEMPERATURE (°C) 3863 G16 3863 G17 3963 G18 Rev. B 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts