R2 Two-Channel, Isolated Micropower Management Unit with Seven Digital Isolators Data Sheet ADP1032 FEATURES TYPICAL APPLICATION CIRCUIT V V INP OUT1 D1 Wide input supply voltage range: 4.5 V to 60 V 4.5V TO 60V 6V TO 28V Integrated flyback power switch R Z FT1 C CLAMP FLY BK D CLAMP Tx1 Generates two isolated, well regulated independent outputs R FB1 V : 24 V or 6 V to 28 V OUT1 V : 3.3 V, 5.0 V, or 5.15 V OUT2 SWP FB1 SGND2 VINP R3 Uses a 1:1 ratio transformer for simplified transformer design VOUT1 C EN IN SYNC Peak current limiting and OVP for flyback and buck regulators PGND Precision enable input and power-good output V OUT2 PGNDP 3.3V, 5.0V, 5.15V Adjustable switching frequency via SYNC input GNDP VOUT2 SLEW SW2 Internal compensation and soft start control per regulator C L1 BUCK High speed, low propagation delay, SPI signal isolation ADP1032 channels ISOLATED GPIO ISOLATED GPIO CHANNELS AND SPI CHANNELS AND SPI Three 100 kbps general-purpose isolated data channels INTERFACE INTERFACE 41-lead, 9 mm 7 mm LFCSP form factor enables small V SVDD overall solution size 1.8V TO 5.5V PWRGD SVDD2 40C to +125C operating junction temperature range V C3 R1 MVDD SGND2 Safety and regulatory approvals (pending) 2.3V TO 5.5V MVDD CISPR11 Class B radiated emission SVDD1 C1 C4 UL recognition: 2500 V rms for 1 minute duration per UL 1577 MGND SGND1 CSA Component Acceptance Notice 5A 300 V rms basic insulation between slave, master, and Figure 1. field power domains (IEC 61010-1, pending) The two regulators are phase shifted relative to each other to VDE certificate of conformity reduce electromagnetic interference (EMI). The ADP1032 can DIN V VDE 0884-10 (VDE 0884-10):2006-12 be driven by an external oscillator in the range of 350 kHz to V = 565 V IORM PEAK 750 kHz to ease noise filtering in sensitive applications. APPLICATIONS The digital isolators integrated in the ADP1032 use Analog Industrial automation and process control Devices, Inc., iCoupler chip scale transformer technology, Instrumentation and data acquisition systems optimized for low power and low radiated emissions. Data and power isolation The ADP1032 is available in a 9 mm 7 mm, 41-lead LFCSP and is rated for a 40C to +125C operating junction temperature GENERAL DESCRIPTION range. The ADP1032 is a high performance, isolated micropower Table 1. Family Models management unit (PMU) that combines an isolated flyback and a dc-to-dc regulator providing two isolated power rails. Additionally, Flyback Switch Buck Switch Inverter Switch Model (mA) (mA) (mA) the ADP1032 contains four high speed serial peripheral interface ADP1031 300 300 300 (SPI) isolation channels and three general-purpose isolators for ADP1032 440 300 Not applicable channel to channel applications where low power dissipation and small solution size is required. Operating over an input COMPANION PRODUCTS voltage range of 4.5 V to 60 V, the ADP1032 generates isolated Analog Output DAC: AD5758 output voltages of 6 V to 28 V (adjustable version) or 24 V Universal Analog input: AD4110-1 (fixed version) for VOUT1, and factory programmable voltages Software Defined Input/Output: AD74412R of 5.15 V, 5.0 V, or 3.3 V for VOUT2. Precision Data Acquisition Subsystem: AD7768-1 By default, the ADP1032 flyback regulator operates at a 250 kHz Additional companion products on the ADP1032 product page switching frequency, and the buck regulator operates at 125 kHz. Rev. 0 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. No Tel: 781.329.4700 2020 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 20363-001ADP1032 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Flyback Regulator ....................................................................... 24 Applications ....................................................................................... 1 Buck Regulator ........................................................................... 25 General Description ......................................................................... 1 Power Good ................................................................................ 25 Typical Application Circuit ............................................................. 1 Power-Up Sequence ................................................................... 26 Companion Products ....................................................................... 1 Oscillator and Synchronization ................................................ 26 Revision History ............................................................................... 2 Thermal Shutdown .................................................................... 26 Specif icat ions ..................................................................................... 3 Data Isolation .............................................................................. 26 Regulatory Information ............................................................... 7 Applications Information .............................................................. 29 Electromagnectic Compatibility ................................................. 7 Component Selection ................................................................ 29 Insulation and Safety Related Specifications ............................ 7 Flyback Regulator Components Selection .............................. 29 DIN V VDE 0884-10 (VDE V 0884-10) Insulation Buck Regulator Components Selection ................................... 32 Characteristics .............................................................................. 8 Insulation Lifetime ..................................................................... 33 Absolute Maximum Ratings ............................................................ 9 Thermal Analysis ....................................................................... 34 Thermal Resistance ...................................................................... 9 Typical Application Circuit ....................................................... 35 ESD Caution .................................................................................. 9 PCB Layout Considerations .......................................................... 36 Pin Configuration and Function Descriptions ........................... 10 Outline Dimensions ....................................................................... 37 Typical Performance Characteristics ........................................... 12 Ordering Guide .......................................................................... 37 Theory of Operation ...................................................................... 23 REVISION HISTORY 1/2020Revision 0: Initial Version Rev. 0 Page 2 of 37