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ADP1071-2ARWZ Datasheet(PDF) 2 Page - Analog Devices |
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ADP1071-2ARWZ Datasheet(HTML) 2 Page - Analog Devices |
2 / 27 page ADP1071-1/ADP1071-2 Data Sheet Rev. B | Page 2 of 27 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Insulation and Safety Related Specifications ............................ 6 Regulatory Information............................................................... 7 Absolute Maximum Ratings............................................................ 8 Thermal Resistance ...................................................................... 8 ESD Caution.................................................................................. 8 Pin Configurations and Function Descriptions ........................... 9 Typical Performance Characteristics ........................................... 12 Theory of Operation ...................................................................... 14 Detailed Block Diagram ............................................................ 15 Primary Side Supply, Input Voltage, and LDO........................... 16 Secondary Side Supply and LDO ............................................. 16 Precision Enable ......................................................................... 16 Soft Start Procedure ................................................................... 17 Output Voltage Sensing and Feedback .................................... 18 Loop Compensation and Steady State Operation .................. 18 Slope Compensation .................................................................. 18 Input/Output Current-Limit Protection..................................... 18 Temperature Sensing ................................................................. 19 Frequency Setting (RT Pin) ...................................................... 19 Maximum Duty Cycle ............................................................... 19 Frequency Synchronization ...................................................... 19 Synchronous Rectifier (SR) Driver .......................................... 20 Output Overvoltage Protection (OVP) ................................... 20 SR Dead Time ............................................................................. 20 Light Load Mode (LLM) and Continuous Conduction Mode (CCM).......................................................................................... 20 Soft Stop....................................................................................... 21 OCP/Feedback Recovery .......................................................... 21 Output Voltage Tracking ........................................................... 21 Remote System Reset ................................................................. 21 OCP Counter .............................................................................. 22 External Start-Up Circuit .......................................................... 23 Insulation Lifetime ..................................................................... 23 Layout Guidelines....................................................................... 24 Applications Information .............................................................. 25 Typical Application Circuits ..................................................... 25 Outline Dimensions ....................................................................... 26 Ordering Guide .......................................................................... 27 REVISION HISTORY 4/2019—Rev. A to Rev. B Added 44-Terminal LGA Section.....................................Universal Changes to Features Section............................................................ 1 Changes to Table 2............................................................................ 6 Change to Regulatory Information Section .................................. 7 Added Table 3 Title and Table 4; Renumbered Sequentially ........... 7 Changes to Table 6 and Table 7....................................................... 8 Added Table 8.................................................................................... 8 Change to Figure 2 Caption, Figure 3 Caption, and Table 9 Title ....................................................................................... 9 Added Figure 4; Renumbered Sequentially, Figure 5, and Table 10 ............................................................................................ 10 Changes to Insulation Lifetime Section....................................... 23 Updated Outline Dimensions ....................................................... 26 Changes to Ordering Guide .......................................................... 27 11/2018—Rev. 0 to Rev. A Changes to Frequency Setting (RT Pin) Section ........................ 17 9/2018—Revision 0: Initial Version |
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