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ADP-I2C-USB-Z Folha de dados(PDF) 1 Page - Analog Devices

Nome de Peças ADP-I2C-USB-Z
Descrição Electrónicos  Digital Controller for Isolated Power Supply with PMBus Interface
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Página de início  http://www.analog.com
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Digital Controller for Isolated Power
Supply with PMBus Interface
Preliminary Technical Data
ADP1051
Rev. PrA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license isgranted by implication or otherwise under any patent or patent rightsof 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
©2013 Analog Devices, Inc. All rights reserved.
FEATURES
Versatile, digital voltage mode controller
High speed, input voltage feed-forward control
6 PWM logic outputs with 625ps resolution
Switching frequency 50 kHz to 625 kHz
Frequency synchronization master & slave
Multiple energy saving modes
Adaptive dead-time compensation for efficiency
optimization
Low device power consumption - typical 100 mW
Direct Parallel operation
Accurate droop current share
Pre-bias start-up
Reverse current protection
Conditional over-voltage protection
Extensive fault detection and protections
Ultra compact package design 4*4mm 24-pin LFCSP
PMBus Compliant
Easy to use programming via Graphic User Interface (GUI)
High reliability EEPROM for programming & data storage
-40 °C ~ 125 °C operation temperature
APPLICATIONS
High density, Isolated DC/DC power supplies
Intermediate bus converters
High availability parallel power systems
Server, storage, industrial, networking, and communications
infrastructure
GENERAL DESCRIPTION
The ADP1051 is an advanced digital controller with PMBusTM
interface targeting high density, high efficiency DCDC power
conversion. This controller implements voltage mode control with
high speed, input line feed-forward for enhanced transient and
improved noise performance. The ADP1051 has 6 programmable
PWM outputs capable of controlling most high efficiency power
supply topologies with added control of synchronous rectification.
The device includes adaptive dead-time compensation to improve
the efficiency over the load range and programmable light load
mode operation combined with low device power consumption to
reduce system standby power losses.
The ADP1051 implements several features to enable a robust
system of parallel and redundant operation for customers that
require high availability or parallel connection. The device includes
master/slave synchronization, reverse current protection and pre-
bias start-up, accurate current sharing between power supplies and
conditional overvoltage techniques to identify and safely shutdown
an erroneous power supply in parallel operation mode.
The ADP1051 is based on flexible state machine architecture and is
register programmed using an intuitive, graphical-user interface.
The easy–to-use interface reduces design cycle time and results in a
robust, hardware coded system loaded into the built-in EEPROM.
The small size 4*4 mm LFCSP package makes the ADP1051 ideal
for ultra-compact, isolated DCDC power module or embedded
designs.
Figure 1. Typical Application Circuit
iCoupler
DC
INPUT
ADP1051
OUTA
OUTB
LOAD
AGND
RES
ADD
RTD
VCORE
CTRL
CS1
VS-
VS+
VDD
OVP
SDA
SCL
SYNI/FLGI
SR1
SR2
PG/ALT#
DRIVER
OUTC
OUTD
VF
CS2-
CS2+
DRIVER
PMBUS


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