Datasheet ADP2384 (Analog Devices) - 9
| Fabricante | Analog Devices |
| Descripción | 20 V, 4 A, Synchronous Step-Down DC-to-DC Regulator |
| Páginas / Página | 24 / 9 — Data Sheet. ADP2384. 7.0. 6.5. D (. HIGH-SIDE R. DSON. HO S. 6.0. HRE. … |
| Revisión | A |
| Formato / tamaño de archivo | PDF / 708 Kb |
| Idioma del documento | Inglés |
Data Sheet. ADP2384. 7.0. 6.5. D (. HIGH-SIDE R. DSON. HO S. 6.0. HRE. TOR. T IT. ESIS. 5.5. IM L. T R. 5.0. OS M. LOW-SIDE RDSON. AK CURRE. 4.5. E P. 4.0. –40. –20. 100
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Data Sheet ADP2384 65 7.0 A) 55 6.5 D ( ) HIGH-SIDE R L DSON Ω HO S 45 (m 6.0 HRE TOR T IT 35 ESIS 5.5 IM L T R NT FE 25 5.0 OS M 15 LOW-SIDE RDSON AK CURRE 4.5 E P 5 4.0 –40 –20 0 20 40 60 80 100 120
016
–40 –20 0 20 40 60 80 100 120
019
TEMPERATURE (°C)
10725-
TEMPERATURE (°C)
10725- Figure 16. MOSFET RDSON vs. Temperature Figure 19. Current-Limit Threshold vs. Temperature
VOUT (AC) EN 1 3 IL VOUT 1 PGOOD SW 2 4 IOUT 2 4
020
CH1 10mV B
017
B W CH2 10.0V M2.00µs A CH2 5.00V CH1 2.00V W CH2 5.00V M2.00ms A CH3 8.60V CH4 2.00A Ω T 50.00% CH3 10.0V CH4 5.00A Ω T 27.00%
10725- 10725- Figure 17. Working Mode Waveform Figure 20. Soft Start with Ful Load
EN SYNC 3 V 2 OUT 1 SW PGOOD 2 4 IL 4
021
CH1 2.00V B
018
M1.00µs A CH2 3.40V W CH2 5.00V M2.00ms A CH2 3.90V CH2 5.00V CH3 10.0V CH4 2.00A Ω T 50.20% CH4 10.0V T 50.00%
10725- 10725- Figure 18. Voltage Precharged Output Figure 21. External Synchronization Rev. A | Page 9 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
016
–40 –20 0 20 40 60 80 100 120
019
TEMPERATURE (°C)
10725-
TEMPERATURE (°C)
10725- Figure 16. MOSFET RDSON vs. Temperature Figure 19. Current-Limit Threshold vs. Temperature
VOUT (AC) EN 1 3 IL VOUT 1 PGOOD SW 2 4 IOUT 2 4
020
CH1 10mV B
017
B W CH2 10.0V M2.00µs A CH2 5.00V CH1 2.00V W CH2 5.00V M2.00ms A CH3 8.60V CH4 2.00A Ω T 50.00% CH3 10.0V CH4 5.00A Ω T 27.00%
10725- 10725- Figure 17. Working Mode Waveform Figure 20. Soft Start with Ful Load
EN SYNC 3 V 2 OUT 1 SW PGOOD 2 4 IL 4
021
CH1 2.00V B
018
M1.00µs A CH2 3.40V W CH2 5.00V M2.00ms A CH2 3.90V CH2 5.00V CH3 10.0V CH4 2.00A Ω T 50.20% CH4 10.0V T 50.00%
10725- 10725- Figure 18. Voltage Precharged Output Figure 21. External Synchronization Rev. A | Page 9 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