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ADP1051-240-EVALZ 데이터시트(PDF) 1 Page - Analog Devices

부품명 ADP1051-240-EVALZ
상세설명  Versatile digital voltage mode controller
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Digital Controller for Isolated
Power Supply with PMBus Interface
Data Sheet
ADP1050
FEATURES
Versatile digital voltage mode controller
High speed input voltage feedforward control
4 pulse-width modulation (PWM) logic outputs with 625 ps
resolution
Switching frequency: 49 kHz to 625 kHz
Frequency synchronization as slave device
Pulse skipping power saving mode
Prebias startup
Conditional overvoltage protection
Extensive fault detection and protection
PMBus compliant
Graphical user interface (GUI) for ease of programming
On-board EEPROM for programming and data storage
Available in a 20-lead, 4 mm × 4 mm LFCSP
−40°C to +125°C operating temperature
APPLICATIONS
High density, isolated dc-to-dc power supplies
Intermediate bus converters
High availability parallel power systems
Server, storage, industrial, networking, and communications
infrastructure
GENERAL DESCRIPTION
The ADP1050 is an advanced digital controller with a PMBus
interface targeting high density, high efficiency dc-to-dc power
conversion. This controller implements voltage mode control
with high speed, input voltage feedforward operation for
enhanced transient and noise performance. The ADP1050 has
four programmable pulse-width modulation (PWM) outputs
capable of controlling most high efficiency power supply
topologies, with the added control of synchronous rectification (SR).
The ADP1050 implements several features to enable a robust
system of parallel and redundant operation for customers who
require high availability. The device provides synchronization,
prebias startup, and conditional overvoltage techniques to
identify and safely shut down an erroneous power supply in
parallel operation mode.
The ADP1050 is based on flexible state machine architecture
and is programmed using an intuitive graphical user interface
(GUI). The easy to use GUI reduces design cycle time and
results in a robust, hardware coded system loaded into the built-
in EEPROM. The small size (4 mm × 4 mm) of the LFCSP
package makes the ADP1050 ideal for ultracompact, isolated
dc-to-dc power module or embedded power designs.
TYPICAL APPLICATIONS CIRCUIT
RES
RTD
ADD
VCORE
AGND
OUTA
OUTB
CS1
SR1
SR2
VF
OVP
SYNI/FLGI
VDD
LOAD
VS+
DC
INPUT
VS–
ADP1050
ADuM3221
ADP3624 or
ADP3654
PG/ALT
CTRL SDA
SCL
PMBus
Figure 1.
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
©2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


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