Isolated, Synchronous Forward Controller with Active Clamp and iCoupler Data Sheet ADP1074 FEATURES Remote (secondary side) shutdown/reset function Current mode controller for active clamp forward topology Safety and regulatory approvals (pending) Integrated 5 kV (wide body SOIC package) or 3.0 kV (LGA UL recognition package) rated dielectric isolation voltage with Analog 5000 V rms for 1 minute per UL 1577 (for wide body Devices, Inc., patented iCoupler technology SOIC package) Wide voltage supply range 3000 V rms for 1 minute per UL 1577 (for LGA package) Primary V : up to 60 V CSA component acceptance notice 5A IN Secondary V : up to 36 V VDE certificate of conformity DD2 Integrated 1 A primary side MOSFET driver for power switch DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 and active clamp reset switch VIORM = 849 V peak (for wide body SOIC package) Integrated 1 A secondary side MOSFET drivers for VIORM = 560 V peak (for LGA package) synchronous rectification CQC certification per GB4943.1-2011 Integrated error amplifier and <1% accurate reference voltage Available in 24-lead SOIC W package and 24-terminal LGA Programmable slope compensation package Programmable frequency range: 50 kHz to 600 kHz typical AEC-Q100 Qualified for Automotive Applications Frequency synchronization APPLICATIONS Programmable maximum duty cycle limit Isolated dc-to-dc power conversion Programmable soft start Intermediate bus voltage generation Smooth soft start from precharged load Telecom, industrial Programmable dead time Base station and antenna RF power Power saving light load mode using MODE pin Small cell Protection features such as short circuit, output overvoltage, PoE powered device and overtemperature protection Enterprise switches/routers Cycle-by-cycle input overcurrent protection Core/edge/metro/optical routing Precision enable UVLO with hysteresis Power modules PGOOD pin for system flagging Tracking function from secondary side SIMPLIFIED BLOCK DIAGRAM ACTIVE CLAMP SYNCHRONOUS INPUT 12V /8A DC FORWARD RECTIFIER BIAS WDG OPTIONAL START-UP CIRCUITRY ADP1074 Figure 1. Rev. D Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. Tel: 781.329.4700 20172020 Analog Devices, Inc. All rights reserved. No license is granted by implication or otherwise under any patent or patent rights of Analog Technical Support www.analog.com Devices. Trademarks and registered trademarks are the property of their respective owners. 15627-001ADP1074 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Slope Compensation .................................................................. 20 Applications ...................................................................................... 1 Input/Output Current-Limit Protection .................................... 20 Simplified Block Diagram ............................................................... 1 Temperature Sensing ................................................................. 21 Revision History ............................................................................... 2 Frequency Setting (RT Pin) ...................................................... 21 General Description ......................................................................... 3 Maximum Duty Cycle ............................................................... 21 Specifications .................................................................................... 4 Frequency Synchronization ...................................................... 21 Insulation and Safety Related Specifications ............................ 7 Synchronous Rectifier (SR) Drivers ........................................ 22 Regulatory Information ............................................................... 8 Output Overvoltage Protection (OVP) ................................... 22 DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Active Clamp (PGATE) ............................................................ 22 Characteristics .............................................................................. 9 Leading Edge Blanking .............................................................. 22 DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Gate Delay and SR Dead Time ................................................. 22 Characteristics ............................................................................ 10 Light Load Mode (LLM) and SR Phase In .............................. 22 Absolute Maximum Ratings ......................................................... 11 External Start-Up Circuit .......................................................... 23 Thermal Resistance .................................................................... 11 Soft Stop ....................................................................................... 23 ESD Caution................................................................................ 11 Power Good ................................................................................ 23 Pin Configurations and Function Descriptions ......................... 12 OCP/Feedback Recovery ........................................................... 24 Typical Performance Characteristics ........................................... 14 Output Voltage Tracking .......................................................... 24 Theory of Operation ...................................................................... 16 Remote System Reset ................................................................. 24 Detailed Block Diagram ............................................................ 17 OCP Counter .............................................................................. 26 Primary Side Supply, Input Voltage, and LDO.......................... 18 Insulation Lifetime ..................................................................... 26 Secondary Side Supply and LDO ............................................. 18 Layout Guidelines ...................................................................... 27 Precision Enable ......................................................................... 18 Typical Application Circuits ......................................................... 28 Soft Start Procedure ................................................................... 18 Outline Dimensions ....................................................................... 31 Output Voltage Sensing and Feedback ................................... 19 Ordering Guide .......................................................................... 31 Loop Compensation and Steady State Operation ................. 19 REVISION HISTORY 6/2020Rev. C to Rev. D Added Table 4 Renumbered Sequentially .................................... 7 Changes to Ordering Guide .......................................................... 31 Changes to Table 3 ............................................................................ 7 Added DIN V VDE V 0884-10 (VDE V 0884-10) Insulation 4/2020Rev. B to Rev. C Characteristics Section, Table 5, and Figure 2 Renumbered Moved General Description Section .............................................. 3 Sequentially ........................................................................................ 8 Added Table 1 Renumbered Sequentially .................................... 3 Added DIN V VDE V 0884-10 (VDE V 0884-10) Insulation Characteristics Section, Table 6, and Figure 3 .............................. 9 8/2018Rev. A to Rev. B Added Table 10 ............................................................................... 10 Changes to Table 1 ........................................................................... 3 Changes to Table 8 and Table 9 ................................................... 10 Changes to Input/Output Current-Limit Protection Section .... 19 Added Figure 5 ............................................................................... 11 Changes to Input/Output Current Limit Protection Section .. 19 8/2018Rev. 0 to Rev. A Added Figure 15 ............................................................................. 20 Added CC-24-6 Package .............................................. Throughout Updated Outline Dimensions ...................................................... 30 Changes to Features Section ........................................................... 1 Changes to Ordering Guide .......................................................... 30 Changes to Table 1 ........................................................................... 3 10/2017Revision 0: Initial Version Changes to Table 2 ........................................................................... 6 Rev. D Page 2 of 32