Datasheet ADP2311 (Analog Devices) - 10
| Fabricante | Analog Devices |
| Descripción | Dual 1 A, 18 V, Synchronous Step-Down Regulator with Fail-Safe Voltage Monitoring |
| Páginas / Página | 20 / 10 — ADP2311. Data Sheet. 350. 588. 340. 584. 330. D ( L. RISING. 320. 580. HO … |
| Revisión | B |
| Formato / tamaño de archivo | PDF / 698 Kb |
| Idioma del documento | Inglés |
ADP2311. Data Sheet. 350. 588. 340. 584. 330. D ( L. RISING. 320. 580. HO S. kHz (. 310. HRE. 576. 300. T E. 572. FALLING. 290. RE F. 280. 568. CHDO. 270. T A. 564. 260. 250. 560
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ADP2311 Data Sheet 350 588 340 ) 584 mV 330 D ( L RISING 320 580 ) HO S kHz ( 310 Y HRE 576 T NC 300 T E UE S Q 572 FALLING 290 RE RE F G 280 568 CHDO 270 T A 564 W 260 250 560 –40 –20 0 20 40 60 80 100 120
017
–40 –20 0 20 40 60 80 100 120
020
TEMPERATURE (°C)
1036-
TEMPERATURE (°C)
1036- 1 1 Figure 17. Frequency vs. Temperature Figure 20. Watchdog Reset Threshold vs. Temperature
1.16 1.12 ) 1.14 s 1.10 m IOD ( 1.12 R E 1.08 IOD 1.10 T P R E 1.06 1.08 OU E T P 1.06 1.04 OU E 1.04 1.02 OG TIM D 1.02 T TIM H 1.00 E S TC 1.00 A E 0.98 W 0.98 D OG R 0.96 D 0.96 H LIZE A 0.94 TC 0.94 M A W 0.92 OR 0.92 N 0.90 0.90 –40 –20 0 20 40 60 80 100 120
018
–40 –20 0 20 40 60 80 100 120
021
TEMPERATURE (°C)
1036-
TEMPERATURE (°C)
1036- 1 1 Figure 18. Watchdog Reset Timeout Period vs. Temperature Figure 21. Normalized Watchdog Timeout Period vs. Temperature
3.4 2.4 3.3 2.3 A) µ 3.2 ( 2.2 NT A) 3.1 ( IT IM 2.1 3.0 L CURRE NT 2.9 2.0 URCE O 2.8 1.9 IN S 2.7 AK CURRE E R P P E 1.8 2.6 IM T 1.7 2.5 2.4 1.6 –40 –20 0 20 40 60 80 100 120
019
–40 –20 0 20 40 60 80 100 120
022
TEMPERATURE (°C)
1036- 1
TEMPERATURE (°C)
1036- 1 Figure 19. TIMER Pin Source Current vs. Temperature Figure 22. Peak Current Limit Threshold vs. Temperature Rev. B | Page 10 of 20 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme Precision Enable/Shutdown Internal Regulator (VREG) Bootstrap Circuitry Soft Start Peak Current-Limit and Short-Circuit Protection Power-On Reset (POR) TIMER Pin Configuration Power Fail Comparator Voltage Monitor Comparator (VM2) Watchdog Timer Power-Up and Power-Down Sequence Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Applications Information Input Capacitor Selection Output Voltage Setting Inductor Selection Output Capacitor Selection Application Circuit Outline Dimensions Ordering Guide
017
–40 –20 0 20 40 60 80 100 120
020
TEMPERATURE (°C)
1036-
TEMPERATURE (°C)
1036- 1 1 Figure 17. Frequency vs. Temperature Figure 20. Watchdog Reset Threshold vs. Temperature
1.16 1.12 ) 1.14 s 1.10 m IOD ( 1.12 R E 1.08 IOD 1.10 T P R E 1.06 1.08 OU E T P 1.06 1.04 OU E 1.04 1.02 OG TIM D 1.02 T TIM H 1.00 E S TC 1.00 A E 0.98 W 0.98 D OG R 0.96 D 0.96 H LIZE A 0.94 TC 0.94 M A W 0.92 OR 0.92 N 0.90 0.90 –40 –20 0 20 40 60 80 100 120
018
–40 –20 0 20 40 60 80 100 120
021
TEMPERATURE (°C)
1036-
TEMPERATURE (°C)
1036- 1 1 Figure 18. Watchdog Reset Timeout Period vs. Temperature Figure 21. Normalized Watchdog Timeout Period vs. Temperature
3.4 2.4 3.3 2.3 A) µ 3.2 ( 2.2 NT A) 3.1 ( IT IM 2.1 3.0 L CURRE NT 2.9 2.0 URCE O 2.8 1.9 IN S 2.7 AK CURRE E R P P E 1.8 2.6 IM T 1.7 2.5 2.4 1.6 –40 –20 0 20 40 60 80 100 120
019
–40 –20 0 20 40 60 80 100 120
022
TEMPERATURE (°C)
1036- 1
TEMPERATURE (°C)
1036- 1 Figure 19. TIMER Pin Source Current vs. Temperature Figure 22. Peak Current Limit Threshold vs. Temperature Rev. B | Page 10 of 20 Document Outline Features Applications Typical Application Circuit General Description Revision History Functional Block Diagram Specifications Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation Control Scheme Precision Enable/Shutdown Internal Regulator (VREG) Bootstrap Circuitry Soft Start Peak Current-Limit and Short-Circuit Protection Power-On Reset (POR) TIMER Pin Configuration Power Fail Comparator Voltage Monitor Comparator (VM2) Watchdog Timer Power-Up and Power-Down Sequence Overvoltage Protection (OVP) Undervoltage Lockout (UVLO) Thermal Shutdown Applications Information Input Capacitor Selection Output Voltage Setting Inductor Selection Output Capacitor Selection Application Circuit Outline Dimensions Ordering Guide