Datasheet ADP2386 (Analog Devices) - 9
| Fabricante | Analog Devices |
| Descripción | 20 V, 6 A, Synchronous Step-Down DC-to-DC Regulator |
| Páginas / Página | 24 / 9 — Data Sheet. ADP2386. 10.5. HIGH-SIDE RDSON. LOW-SIDE RDSON. 10.0. D ( L. … |
| Revisión | C |
| Formato / tamaño de archivo | PDF / 860 Kb |
| Idioma del documento | Inglés |
Data Sheet. ADP2386. 10.5. HIGH-SIDE RDSON. LOW-SIDE RDSON. 10.0. D ( L. ) Ω. HO S. 9.5. R O. HRE. T IT. ESIS. 9.0. T-L. F S. 8.5. O M. AK CURRE. 8.0. E P. 7.5. –40
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Data Sheet ADP2386 65 10.5 HIGH-SIDE RDSON LOW-SIDE RDSON A) 55 10.0 D ( L ) Ω HO S (m 45 9.5 R O HRE T T IT 35 ESIS 9.0 IM R T-L ET N F S 25 8.5 O M 15 AK CURRE 8.0 E P 5 7.5 –40 –20 0 20 40 60 80 100 120
9 016
–40 –20 0 20 40 60 80 100 120
1- -01 1 1
TEMPERATURE (°C)
1 2 102
TEMPERATURE (°C)
10 Figure 16. MOSFET RDSON vs. Temperature Figure 19. Current-Limit Threshold vs. Temperature
VOUT (AC) 1 EN IL 3 VOUT 1 PGOOD SW 2 3 IOUT 2 4
7
CH1 10mV B
020
W CH2 10V M2.00µs A CH2 6V
-01
B
1
CH1 2V W CH2 5V M2.00ms A CH2 5.8V
1- 1 1
CH3 2A Ω T 50.2%
2
CH3 10V CH4 5A Ω T 50%
10 102 Figure 17. Working Mode Waveform Figure 20. Soft Start with Full Load
EN SYNC 4 VOUT 2 1 SW PGOOD 2 4 IL 3 CH1 2V B
018
W CH2 5V M2.00ms A CH2 2V M1.00µs A CH4 7.8V
021 1-
CH2 5V
1-
CH3 5A Ω CH4 10V
1
T 50% T 50%
1 102
CH4 10V
102 Figure 18. Voltage Precharged Output Figure 21. External Synchronization Rev. C | 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
9 016
–40 –20 0 20 40 60 80 100 120
1- -01 1 1
TEMPERATURE (°C)
1 2 102
TEMPERATURE (°C)
10 Figure 16. MOSFET RDSON vs. Temperature Figure 19. Current-Limit Threshold vs. Temperature
VOUT (AC) 1 EN IL 3 VOUT 1 PGOOD SW 2 3 IOUT 2 4
7
CH1 10mV B
020
W CH2 10V M2.00µs A CH2 6V
-01
B
1
CH1 2V W CH2 5V M2.00ms A CH2 5.8V
1- 1 1
CH3 2A Ω T 50.2%
2
CH3 10V CH4 5A Ω T 50%
10 102 Figure 17. Working Mode Waveform Figure 20. Soft Start with Full Load
EN SYNC 4 VOUT 2 1 SW PGOOD 2 4 IL 3 CH1 2V B
018
W CH2 5V M2.00ms A CH2 2V M1.00µs A CH4 7.8V
021 1-
CH2 5V
1-
CH3 5A Ω CH4 10V
1
T 50% T 50%
1 102
CH4 10V
102 Figure 18. Voltage Precharged Output Figure 21. External Synchronization Rev. C | 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