9 Transient Protection
The TPS272C45EVM provides several footprints and populated components used to mitigate transient power
events such as ESD, surges, and inductive load turn-offs. These protection mechanisms are provided in addition
to the integrated transient mitigation features of the TPS272C45. Refer to the TPS272C45 data sheet on more
information about the internal protections that the device provides.
The TPS272C45EVM provides the following transient protection features:
• Input TVS diode on VS (
D4
) to protect against upstream power events (populated)
• Optional external inductive load turn-off diode footprints on
D2
,
D3
,
D8
, and
D9
to provide a mechanism to
discharge an inductive load if the internal clamp is not adequate (A, B or D versions of TPS272C45) or the
clamp does not exist (C version of TPS272C45)
• Optional TVS diode footprint
D6
that provides input transient protection on Vdd (A or D version of
TPS272C45 only)
Transient Protection
12
TPS272C45 Evaluation Module
SLVUBV4A – DECEMBER 2020 – REVISED DECEMBER 2021
Copyright © 2021 Texas Instruments Incorporated
