Datasheet ADP2384 (Analog Devices) - 8
| Fabricante | Analog Devices |
| Descripción | 20 V, 4 A, Synchronous Step-Down DC-to-DC Regulator |
| Páginas / Página | 24 / 8 — ADP2384. Data Sheet. 4.5. 1.25. 4.4. RISING. 1.20. 4.3. (V) D L. 4.2. … |
| Revisión | A |
| Formato / tamaño de archivo | PDF / 708 Kb |
| Idioma del documento | Inglés |
ADP2384. Data Sheet. 4.5. 1.25. 4.4. RISING. 1.20. 4.3. (V) D L. 4.2. 1.15. ESH. 4.1. S 1.10. FALLING. 4.0. HRE. VL U. 3.9. N T 1.05. PVI. 3.8. 1.00. 3.7. 3.6. 0.95. –40
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ADP2384 Data Sheet 4.5 1.25 4.4 RISING 1.20 RISING 4.3 (V) D L 4.2 1.15 O (V) D L ESH 4.1 R HO H S 1.10 FALLING T 4.0 O HRE VL U 3.9 N T 1.05 N E FALLING PVI 3.8 1.00 3.7 3.6 0.95 –40 –20 0 20 40 60 80 100 120
010
–40 –20 0 20 40 60 80 100 120
013
TEMPERATURE (°C)
10725-
TEMPERATURE (°C)
10725- Figure 10. UVLO Threshold vs. Temperature Figure 13. EN Threshold vs. Temperature
3.30 606 3.25 604 ) A) 3.20 µ ( mV ( 602 NT E 3.15 AG T L O 600 CURRE 3.10 -UP L 3.05 UL 598 DBACK V P E S E S 3.00 F 596 2.95 2.90
1
594
1
–40 –20 0 20 40 60 80 100 120
0
–40 –20 0 20 40 60 80 100 120
014
TEMPERATURE (°C)
10725-
TEMPERATURE (°C)
10725- Figure 11. SS Pin Pull-Up Current vs. Temperature Figure 14. FB Voltage vs. Temperature
630 8.4 8.3 620 8.2 ) 610 kHz E (V) ( G A 8.1 R T NCY 600 T = 100kΩ L UE VO 8.0 Q EG RE 590 F VR 7.9 580 7.8 570 7.7 –40 –20 0 20 40 60 80 100 120
012
–40 –20 0 20 40 60 80 100 120
015
TEMPERATURE (°C) TEMPERATURE (°C)
10725- 10725- Figure 12. Frequency vs. Temperature Figure 15. VREG Voltage vs. Temperature Rev. A | Page 8 of 24 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATIONS CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL BLOCK DIAGRAM THEORY OF OPERATION CONTROL SCHEME PRECISION ENABLE/SHUTDOWN INTERNAL REGULATOR (VREG) BOOTSTRAP CIRCUITRY OSCILLATOR SYNCHRONIZATION SOFT START POWER GOOD PEAK CURRENT-LIMIT AND SHORT-CIRCUIT PROTECTION OVERVOLTAGE PROTECTION (OVP) UNDERVOLTAGE LOCKOUT (UVLO) THERMAL SHUTDOWN APPLICATIONS INFORMATION INPUT CAPACITOR SELECTION OUTPUT VOLTAGE SETTING VOLTAGE CONVERSION LIMITATIONS INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION PROGRAMMING THE INPUT VOLTAGE UVLO COMPENSATION DESIGN ADIsimPower DESIGN TOOL DESIGN EXAMPLE OUTPUT VOLTAGE SETTING (DESIGN EXAMPLE) FREQUENCY SETTING INDUCTOR SELECTION (DESIGN EXAMPLE) OUTPUT CAPACITOR SELECTION (DESIGN EXAMPLE) COMPENSATION COMPONENTS SOFT START TIME PROGRAM INPUT CAPACITOR SELECTION (DESIGN EXAMPLE) RECOMMENDED EXTERNAL COMPONENTS CIRCUIT BOARD LAYOUT RECOMMENDATIONS TYPICAL APPLICATIONS CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE
010
–40 –20 0 20 40 60 80 100 120
013
TEMPERATURE (°C)
10725-
TEMPERATURE (°C)
10725- Figure 10. UVLO Threshold vs. Temperature Figure 13. EN Threshold vs. Temperature
3.30 606 3.25 604 ) A) 3.20 µ ( mV ( 602 NT E 3.15 AG T L O 600 CURRE 3.10 -UP L 3.05 UL 598 DBACK V P E S E S 3.00 F 596 2.95 2.90
1
594
1
–40 –20 0 20 40 60 80 100 120
0
–40 –20 0 20 40 60 80 100 120
014
TEMPERATURE (°C)
10725-
TEMPERATURE (°C)
10725- Figure 11. SS Pin Pull-Up Current vs. Temperature Figure 14. FB Voltage vs. Temperature
630 8.4 8.3 620 8.2 ) 610 kHz E (V) ( G A 8.1 R T NCY 600 T = 100kΩ L UE VO 8.0 Q EG RE 590 F VR 7.9 580 7.8 570 7.7 –40 –20 0 20 40 60 80 100 120
012
–40 –20 0 20 40 60 80 100 120
015
TEMPERATURE (°C) TEMPERATURE (°C)
10725- 10725- Figure 12. Frequency vs. Temperature Figure 15. VREG Voltage vs. Temperature Rev. A | Page 8 of 24 Document Outline FEATURES APPLICATIONS TYPICAL APPLICATIONS CIRCUIT GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS FUNCTIONAL BLOCK DIAGRAM THEORY OF OPERATION CONTROL SCHEME PRECISION ENABLE/SHUTDOWN INTERNAL REGULATOR (VREG) BOOTSTRAP CIRCUITRY OSCILLATOR SYNCHRONIZATION SOFT START POWER GOOD PEAK CURRENT-LIMIT AND SHORT-CIRCUIT PROTECTION OVERVOLTAGE PROTECTION (OVP) UNDERVOLTAGE LOCKOUT (UVLO) THERMAL SHUTDOWN APPLICATIONS INFORMATION INPUT CAPACITOR SELECTION OUTPUT VOLTAGE SETTING VOLTAGE CONVERSION LIMITATIONS INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION PROGRAMMING THE INPUT VOLTAGE UVLO COMPENSATION DESIGN ADIsimPower DESIGN TOOL DESIGN EXAMPLE OUTPUT VOLTAGE SETTING (DESIGN EXAMPLE) FREQUENCY SETTING INDUCTOR SELECTION (DESIGN EXAMPLE) OUTPUT CAPACITOR SELECTION (DESIGN EXAMPLE) COMPENSATION COMPONENTS SOFT START TIME PROGRAM INPUT CAPACITOR SELECTION (DESIGN EXAMPLE) RECOMMENDED EXTERNAL COMPONENTS CIRCUIT BOARD LAYOUT RECOMMENDATIONS TYPICAL APPLICATIONS CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE