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ADP1053ACPZ-RL Fiches technique(PDF) 1 Page - Analog Devices

No de pièce ADP1053ACPZ-RL
Description  3-Channel Digital
Download  84 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

ADP1053ACPZ-RL Fiches technique(HTML) 1 Page - Analog Devices

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3-Channel Digital
Power Supply Controller
Data Sheet
ADP1053
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
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
www.analog.com
Fax: 781.461.3113
©2012 Analog Devices, Inc. All rights reserved.
FEATURES
Configurable 8-PWM engine with up to 3 channels
2 independent digitally controlled channel outputs
Voltage mode PWM control with 625 ps resolution
Remote voltage sensing on both channels
Programmable compensation filters
Voltage feedforward option
Flexible start-up sequencing and tracking
Switching frequency: 50 kHz to 625 kHz
Frequency synchronization
Independent channel protections: OVP and OCP
2 independent OTP circuits
Programmable fault protection sequence
Volt-second balance and dual-phase current balance
for interleaved configurations
On-board EEPROM
PMBus-compliant
Graphical user interface (GUI) for ease of programming
Available in a 40-lead, 6 mm × 6 mm LFCSP
APPLICATIONS
AC-to-DC power supplies
Isolated dc-to-dc power supplies
Intermediate rail power supplies
Nonisolated dc-to-dc power converter
GENERAL DESCRIPTION
The ADP1053, based on a voltage mode PWM architecture, is
a flexible, application dedicated digital controller designed for
isolated and nonisolated dc-to-dc power supply applications.
The ADP1053 enables highly efficient power supply design and
facilitates the introduction of intelligent power management
techniques to improve energy efficiency at a system level.
The ADP1053 provides control, monitoring, and protection
of up to three independent channel outputs. The eight flexible
PWM outputs can be configured as three independent channels:
two regulated channels with feedback control plus one additional
unregulated channel with a fixed duty cycle. The frequency of
these three channels can be programmed individually from
50 kHz to 625 kHz; all channels can be synchronized internally
or to an external signal.
All eight PWM outputs can also be assigned to enable a single-
channel solution, which may be required in high power, high
efficiency applications.
Features include differential voltage sensing, fast current sensing,
flexible start-up sequencing and tracking, and synchronization
between devices to reduce low frequency system noise. Protection
and monitoring features include overcurrent protection (OCP),
undervoltage protection (UVP), overvoltage protection (OVP),
and overtemperature protection (OTP).
SIMPLIFIED TYPICAL APPLICATION CIRCUIT
DRIVER
DRIVER
DRIVER
ADP1053
PWM
OUTPUTS
CS2–_A
CS2+_A
VS+_A
VS–_A
RSENSE
VOUT A+
VOUT A–
LOAD
VIN_DC
iCoupler
DUPLICATE THE ABOVE SCHEMATICS FOR CHANNEL B
VOUT B+
VOUT B–
Figure 1.


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