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ADP1048 Datasheet

(ADP1047 / ADP1048) Digital Power Factor Correction Controller

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ADP1048 pdf
Data Sheet
Digital Power Factor Correction Controller
with Accurate AC Power Metering
ADP1047/ADP1048
FEATURES
Flexible digital power factor correction (PFC) controller
Single phase operation (ADP1047); interleaved and
bridgeless operation (ADP1048)
True rms ac power metering
Enhanced dynamic response
Optimized light load efficiency performance
Output voltage adjustment
Frequency reduction
Inrush current control
Switching frequency spread spectrum for improved EMI
External frequency synchronization
PMBus compliant
Programmable ac line fault detection and protection
Programmable output fault detection and protection
Extensive fault protection for high reliability systems
Frequency range from 30 kHz to 400 kHz
8 kB EEPROM
Programming via easy-to-use graphical user interface (GUI)
APPLICATIONS
AC/DC power supplies for applications
Computing server and storage
Network and communication infrastructure
Industrial and medical
GENERAL DESCRIPTION
The ADP1047/ADP1048 are digital power factor correction
(PFC) controllers that provide accurate input power metering
capability and inrush current control for ac/dc systems. The
ADP1047 is designed for single phase PFC applications; the
ADP1048 is designed especially for interleaved and bridgeless
PFC applications.
The digital PFC function is based on a conventional boost PFC
with multiplication of the output voltage feedback combined with
the input current and voltage to provide optimum harmonic
correction and power factor for ac/dc systems. All signals are
converted into the digital domain to provide maximum flexibility;
all key parameters can be reported and adjusted via the PMBus™
interface. The ADP1047/ADP1048 allow users to optimize system
performance, maximize efficiency across the load range, and
reduce design time to market.
The ADP1047/ADP1048 provide accurate rms measurement
of input voltage, current, and power. This information can be
reported to the microcontroller of the power supply via the
PMBus interface.
TYPICAL APPLICATIONS CIRCUIT
VREC
RELAY
VOUT
AC
INPUT
BULK
CAPACITOR
3.3V
1 AGND
2 VAC
3 VFB
4 OVP
5 PGND
6 ILIM
7 NC
8 CS–
9 CS+
10 DGND
11 PSON
12 VCORE
VDD 24
RES 23
RTD 22
ADD 21
SDA 20
PMBus
SCL 19
SYNC 18
INRUSH 17
PGOOD 16
AC_OK 15
PWM2 14
PWM 13
ADP1047
Figure 1.
Rev. 0
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
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2011 Analog Devices, Inc. All rights reserved.
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Analog Devices Semiconductor Electronic Components Datasheet

ADP1048 Datasheet

(ADP1047 / ADP1048) Digital Power Factor Correction Controller

No Preview Available !

ADP1048 pdf
ADP1047/ADP1048
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1 
Applications....................................................................................... 1 
General Description ......................................................................... 1 
Typical Applications Circuit............................................................ 1 
Revision History ............................................................................... 4 
Specifications..................................................................................... 6 
Absolute Maximum Ratings............................................................ 9 
Thermal Resistance ...................................................................... 9 
ESD Caution.................................................................................. 9 
Pin Configurations and Function Descriptions ......................... 10 
Functional Block Diagrams........................................................... 11 
Controller Architecture ................................................................. 12 
Current Sense.............................................................................. 12 
RMS Input Overcurrent Protection ......................................... 12 
Fast Overcurrent Protection (ILIM Pin) ................................. 12 
Current Balancing (IBAL Pin, ADP1048 Only)..................... 14 
Voltage Sense............................................................................... 14 
Overvoltage Protection.............................................................. 15 
Power Factor Correction Control Loop ...................................... 17 
Digital Compensation Filters.................................................... 17 
Pulse-Width Modulation........................................................... 18 
Duty Cycle Minimum/Maximum Limits................................ 18 
Auxiliary PWM Output (ADP1047 Only).............................. 18 
Switching Frequency Programming ........................................ 19 
Line Fault Protections and Soft Start Sequencing ...................... 20 
PSON Operation ........................................................................ 20 
AC Line Detection...................................................................... 20 
Soft Start Procedure ................................................................... 22 
Line Fault Protections ................................................................ 22 
Advanced Input Power Metering.................................................. 24 
Power Supply System and Fault Monitoring............................... 25 
Flag Conventions........................................................................ 25 
Manufacturer-Specific Flags ..................................................... 25 
Standard PMBus Flags ............................................................... 26 
PMBus Fault Flag Response...................................................... 27 
Manufacturer-Specific Flag Response ..................................... 28 
Monitoring Functions................................................................ 29 
First Error Fault .......................................................................... 29 
Overtemperature Protection (OTP) ........................................ 29 
AC_OK and PGOOD Signals ................................................... 29 
Advanced Features ......................................................................... 30 
Frequency Dithering (Spread Spectrum)................................ 30 
PWM Frequency Synchronization........................................... 30 
Smart Output Voltage (Load Line) .......................................... 30 
Smart Switching Frequency ...................................................... 31 
Current Loop Filter for Light Load.......................................... 31 
Phase Shedding (ADP1048 Only)............................................ 31 
Current Loop Feedforward ....................................................... 31 
Bridgeless Boost Operation (ADP1048 Only)........................ 32 
Power Supply System Calibration and Trim ............................... 33 
Output Voltage (VFB) Calibration and Trim ......................... 33 
Input Voltage (VAC) Gain and Offset Trim............................ 33 
Current Sense Gain and Offset Trim....................................... 33 
Input Power Gain and Offset Trim .......................................... 33 
PMBus Digital Communication................................................... 34 
Features........................................................................................ 34 
Overview ..................................................................................... 34 
PMBus Address .......................................................................... 34 
Data Transfer............................................................................... 35 
General Call Support ................................................................. 36 
Fast Mode .................................................................................... 36 
Fault Conditions ......................................................................... 36 
Timeout Condition .................................................................... 36 
Data Transmission Faults .......................................................... 37 
Data Content Faults ................................................................... 37 
EEPROM ......................................................................................... 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.................................................................... 39 
Downloading EEPROM Settings to Internal Registers......... 39 
Saving Register Settings into EEPROM .................................. 40 
EEPROM CRC Checksum ........................................................ 40 
Software GUI .................................................................................. 41 
Standard PMBus Commands Supported by the
ADP1047/ADP1048....................................................................... 42 
Manufacturer-Specific PMBus Commands................................ 43 
Detailed Register Descriptions ..................................................... 45 
OPERATION Register............................................................... 45 
Rev. 0 | Page 2 of 84
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Part Number ADP1048
Description (ADP1047 / ADP1048) Digital Power Factor Correction Controller
Maker Analog Devices
Total Page 30 Pages
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