ADP1053ACPZ-R7 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADP1053ACPZ-R7 Datasheet PDF : 84 Pages
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ADP1053
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Simplified Typical Application Circuit .......................................... 1
Revision History ............................................................................... 3
Functional Block Diagram .............................................................. 4
Specifications..................................................................................... 5
Absolute Maximum Ratings............................................................ 9
Thermal Resistance ...................................................................... 9
Soldering........................................................................................ 9
ESD Caution.................................................................................. 9
Pin Configuration and Function Descriptions........................... 10
Application Circuits ....................................................................... 12
Theory of Operation ...................................................................... 14
PWM Outputs (OUT1 to OUT8) ............................................ 14
Frequency Synchronization ...................................................... 16
Voltage Sense............................................................................... 16
Current Sense.............................................................................. 17
SR FETs Reverse Current Protection ....................................... 19
Control Loops and Feedback References ................................ 19
Voltage Setting with Slew Rate.................................................. 19
Digital Filters............................................................................... 20
ACSNS and Input Feedforward................................................ 20
Light Load Mode and Phase Shedding.................................... 21
Power-Good Signals................................................................... 21
Soft Start and Shutdown............................................................ 21
Synchronous Rectifier (SR) Soft Start...................................... 24
Volt-Second Balance and Current Balance ............................. 24
Power Monitoring and Flags ......................................................... 25
Monitoring Functions................................................................ 25
Voltage Readings ........................................................................ 25
Current Readings........................................................................ 25
Temperature Readings (RTD1 and RTD2 Pins)..................... 25
Temperature Linearization Scheme ......................................... 26
Channel A and Channel B Duty Cycle Readings ................... 27
Flags.............................................................................................. 27
Housekeeping Flags.................................................................... 27
Overvoltage Protection (OVP) Flags ....................................... 27
Undervoltage Protection (UVP) Flags..................................... 27
Data Sheet
ACSNS Flag................................................................................. 28
Overcurrent Protection (OCP) Flags ...................................... 28
Overtemperature Protection (OTP) and Overtemperature
Warning (OTW) Flags............................................................... 29
External Flag Input (FLGI/SYNI Pin) ..................................... 30
Protection Actions...................................................................... 30
Flag Blanking During Soft Start ............................................... 30
Latched Flags............................................................................... 30
First Flag ID Recording ............................................................. 31
Power Supply Calibration and Trim ............................................ 32
CS, CS1_A, and CS1_B Gain Trim .......................................... 32
CS2_A and CS2_B Offset and Gain Trim............................... 32
VS_A and VS_B Gain Trim ...................................................... 32
ACSNS Gain Trim...................................................................... 32
RTD1, RTD2, OTP1, and OTP2 Trim..................................... 33
Layout Guidelines....................................................................... 33
PMBus/I2C Communication......................................................... 34
Features........................................................................................ 34
Overview ..................................................................................... 34
PMBus/I2C Address ................................................................... 34
Data Transfer............................................................................... 35
General Call Support ................................................................. 36
Fast Mode .................................................................................... 36
Fault Conditions ......................................................................... 36
Timeout Conditions................................................................... 36
Data Transmission Faults .......................................................... 37
Data Content Faults ................................................................... 37
EEPROM ......................................................................................... 38
Features........................................................................................ 38
Overview ..................................................................................... 38
Page Erase Operation................................................................. 38
Read Operation (Byte Read and Block Read) ........................ 38
Write Operation (Byte Write and Block Write) ..................... 39
EEPROM Password.................................................................... 40
Downloading EEPROM Settings to Internal Registers......... 40
Saving Register Settings to the EEPROM ............................... 40
EEPROM CRC Checksum ........................................................ 40
Software GUI .................................................................................. 41
Rev. A | Page 2 of 84
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