Datasheet ADUM3070 (Analog Devices) - 10

ADuM3070 Data Sheet 80 90 70 80 70 60 60 %) 50 %) ( ( 50 NCY 40 NCY E E ICI 40 ICI F F F 30 F E E 30 20 20 TA = –40°C TA = –40°C 10 TA = +25°C 10 TA = +25°C TA = +105°C TA = +105°C 0 0 0 50 100 150 200 250 300
034
0 140
011
10 20 30 40 50 60 70 80 90 100 110 120 130 LOAD CURRENT (mA)
10437-
LOAD CURRENT (mA)
10437- Figure 10. Typical Efficiency at 3.3 V In to 5 V Out over Temperature with Figure 13. 5 V In to 15 V Out Efficiency over Temperature with 1:3 Coilcraft 1:3 Halo Transformer (TGSAD-290V6LF) at 500 kHz fSW Transformer (JA4650-BL) at 500 kHz fSW
90 80 80 70 70 60 60 %) %) 50 ( ( 50 NCY NCY 40 E E 40 ICI ICI F F F F 30 E 30 E 20 20 fSW = 1MHz fSW = 700kHz 10 f 10 5V IN TO 12V OUT SW = 500kHz f 5V IN TO 15V OUT SW = 200kHz 0 0 0 140
009
10 20 30 40 50 60 70 80 90 100 110 120 130 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70
012
LOAD CURRENT (mA)
10437-
LOAD CURRENT (mA)
10437- Figure 11. 5 V In to 15 V Out Efficiency at Various Switching Frequencies with Figure 14. Double-Supply Efficiency with 1:5 Coilcraft Transformer (KA4976-AL) 1:3 Coilcraft Transformer (JA4650-BL) at 500 kHz fSW
90 6 80 5 70 60 4 %) ( 50 NCY (V) E 3 40 ISO ICI V F F E 30 2 20 fSW = 1MHz fSW = 700kHz 1 LOAD = 10mA 10 f LOAD = 50mA SW = 500kHz f LOAD = 500mA SW = 200kHz 0 0
013
0 140
010
10 20 30 40 50 60 70 80 90 100 110 120 130 0 5 10 15 20 25 30 LOAD CURRENT (mA)
10437-
TIME (ms)
10437- Figure 12. 5 V In to 15 V Out Efficiency at Various Switching Frequencies with Figure 15. Typical VISO Startup at 5 V In to 5 V Out with 1:3 Halo Transformer (TGSAD-290V6LF) 10 mA, 50 mA, and 500 mA Output Load Rev. A | Page 10 of 20 Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Electrical Characteristics—5 V Primary Input Supply/5 V Secondary Isolated Supply Electrical Characteristics—3.3 V Primary Input Supply/3.3 V Secondary Isolated Supply Electrical Characteristics—5 V Primary Input Supply/3.3 V Secondary Isolated Supply Electrical Characteristics—5 V Primary Input Supply/15 V Secondary Isolated Supply Package Characteristics Regulatory Approvals (Pending) Insulation and Safety Related Specifications DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Characteristics Recommended Operating Conditions Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Applications Information Application Schematics Transformer Design Transformer Turns Ratio Transformer ET Constant Transformer Primary Inductance and Resistance Transformer Isolation Voltage Switching Frequency Transient Response Component Selection Printed Circuit Board (PCB) Layout Thermal Analysis Power Consumption Power Considerations Soft Start Mode and Current-Limit Protection Insulation Lifetime Outline Dimensions Ordering Guide