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Introduction
3
SLUUBN2 – March 2017
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Copyright © 2017, Texas Instruments Incorporated
TPS549B22EVM-847, 25-A Single Synchronous Step-Down Converter With
Full Differential Sense and PMBus™
1
Introduction
The PWR847EVM evaluation module uses the TPS549B22 device. The TPS549B22 is a highly integrated
synchronous buck converter that is designed for up to 25-A current output.
1.1
Before You Begin
The following warnings and cautions are noted for the safety of anyone using or working close to the
TPS549B22EVM-847. Observe all safety precautions.
Warning
The TPS549B22EVM-847 circuit module may become hot
during operation due to dissipation of heat. Avoid contact with
the board. Follow all applicable safety procedures applicable
to your laboratory.
Caution
Do not leave the EVM powered when unattended.
WARNING
The circuit module has signal traces, components, and component
leads on the bottom of the board. This may result in exposed
voltages, hot surfaces or sharp edges. Do not reach under the
board during operation.
CAUTION
The circuit module may be damaged by over temperature. To avoid damage,
monitor the temperature during evaluation and provide cooling, as needed, for
your system environment.
CAUTION
Some power supplies can be damaged by application of external voltages. If
using more than 1 power supply, check your equipment requirements and use
blocking diodes or other isolation techniques, as needed, to prevent damage to
your equipment.
CAUTION
The communication interface is not isolated on the EVM. Be sure no ground
potential exists between the computer and the EVM. Also be aware that the
computer is referenced to the Battery- potential of the EVM.
