Datasheet ADP1032 (Analog Devices) - 2

link to page 1 link to page 1 link to page 1 link to page 1 link to page 1 link to page 2 link to page 3 link to page 7 link to page 7 link to page 7 link to page 8 link to page 8 link to page 9 link to page 9 link to page 9 link to page 10 link to page 12 link to page 23 link to page 24 link to page 25 link to page 25 link to page 26 link to page 26 link to page 26 link to page 26 link to page 29 link to page 29 link to page 29 link to page 32 link to page 33 link to page 34 link to page 35 link to page 36 link to page 37 link to page 37
ADP1032 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  Specifications ... 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 1/2020—Revision 0: Initial Version
Rev. 0 | Page 2 of 37 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION TYPICAL APPLICATION CIRCUIT COMPANION PRODUCTS TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS REGULATORY INFORMATION ELECTROMAGNECTIC COMPATIBILITY INSULATION AND SAFETY RELATED SPECIFICATIONS DIN V VDE 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION FLYBACK REGULATOR Flyback Regulator Operation Power Saving Mode (PSM) Flyback Undervoltage Lockout (UVLO) Flyback Regulator Precision Enable Control Flyback Regulator Soft Start Flyback Slew Rate Control Flyback Regulator Overcurrent Protection Flyback Regulator Overvoltage Protection BUCK REGULATOR Buck Regulator Operation Buck Regulator UVLO Buck Regulator Soft Start Buck Regulator Current-Limit Protection Buck Regulator Active Pull-Down Resistor Buck Regulator OVP POWER GOOD POWER-UP SEQUENCE OSCILLATOR AND SYNCHRONIZATION THERMAL SHUTDOWN DATA ISOLATION High Speed SPI Channels GPIO Data Channels APPLICATIONS INFORMATION COMPONENT SELECTION Feedback Resistors Capacitor Selection FLYBACK REGULATOR COMPONENTS SELECTION Input Capacitor Output Capacitor Ripple Current vs. Capacitor Value Schottky Diode Transformer Turn Ratio Primary Inductance Flyback Transformer Saturation Current Series Winding Resistance Leakage Inductance and Clamping Circuits Clamping Resistor Clamping Capacitor Clamping Diode Diode, Zener Diode Clamp Ripple Current (IAC) vs. Inductance Maximum Output Current Calculation BUCK REGULATOR COMPONENTS SELECTION Inductor Output Capacitor INSULATION LIFETIME Surface Tracking Insulation Wear Out Calculation and Use of Parameters Example THERMAL ANALYSIS TYPICAL APPLICATION CIRCUIT PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE