Analog Devices DC2881A-A, Руководство пользователя

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DEMO MANUAL DC2881A-A
Rev. 0
DESCRIPTION
LTC7050/LTC3884-1
2-Phase, Dual-Output Synchronous Buck
Converter with Power System Management
Demonstration circuit 2881A-A is a 2-phase dual-output,
high efficiency, high density, synchronous buck converter
with 7V to 14V input range. Each output can supply up
to 30A maximum load current with 1V output. The demo
board features the LTC
®
3884-1 controller paired with the
LTC7050 dual smart power stage to provide a 2-phase
buck converter solution. The LTC3884-1 is a dual output
poly phase step-down controller with digital power sys-
tem management. The LTC7050 is a dual monolithic smart
power stage which integrates high speed drivers with low
resistance half-bridge power switches plus comprehensive
monitoring and protection circuitry in an electrically and
thermally optimized package. Please refer to the LTC3884-1
and LTC7050 data sheet for more detailed information.
DC2881A-A powers up to default settings and produces
power based on configuration resistors (or with the
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BOARD PHOTO
setting in its non-volatile memory) without the need for
any serial bus communication. This allows easy evalua-
tion of the DC/DC converter. To fully explore the extensive
power system management features of the part, download
the GUI software LTpowerPlay
®
onto your PC and use
ADI’s I
2
C/SMBus/PMBus dongle DC1613A to connect to
the board. LTpowerPlay allows the user to reconfigure the
part on the fly and store the configuration in EEPROM, view
telemetry of voltage, current, temperature and fault status.
GUI Download
The software can be downloaded from here .
For more details and instructions of LTpowerPlay, please
refer to LTpowerPlay Quick Start Procedure.
Design files for this circuit board are available .
Figure 1. Dual-Output L LTC3884-1/DC2881A-A Demo Circuit