2.2
Typical Applications
2.3
Features
Description
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The TPS2358EVM was designed with independent input and output banana jacks for up to two each 12-V
input and 3.3-V input power supplies, and up to two each 12-V and 3.3-V output power rails. This provides
the greatest flexibility for configuring the EVM for either ATCA™ or MicroTCA™ applications.
By connecting the two 12-V inputs and two 3.3-V inputs together, the TPS2358EVM can manage the
application of a single 12-V supply and single 3.3-V supply to two AdvancedMC-like loads. This
configuration allows users to learn about the device operation in non-redundant applications. Driving the
supply inputs independently while ganging together the common potential output nodes demonstrates
operation in redundant systems, albeit through a common controller IC. In either case, switch-selectable
timing capacitors complete device configuration for the target application.
As supplied from the factory, the EVM comes with current limits programmed for the requirements of
Management Power and Payload Power control for AdvancedMC™ modules. However, limit thresholds on
the 12-V channels are programmable by the user; instructions for modifying current limits are included
below. This flexibility with the TPS2358 enables use in other, proprietary systems requiring 12-V and 3.3-V
supply control.
Lastly, the EVM features two expansion ports and related jumpers needed to parallel multiple devices
together to create a true redundant system. Additional EVM modules for this purpose can be ordered
directly from the TI website at
, or contact your local TI representative.
The TPS2358EVM includes the following features:
•
One TPS2358 Dual-Slot ATCA™ AdvancedMC™ Controller
•
Programming and sense resistors (12-V)
•
Low R
DS
(ON) pass and block FET’s (12-V)
•
Input and output power jacks for external supply and optional load connection
•
Up to 880
µ
F (4
×
220
µ
F) jumpered load capacitors (each channel) for simulated Payload Power
output bulk capacitance
•
150
µ
F jumpered load capacitor for each Management Power channel
•
Multiple, switch-selectable fault timer settings, each channel
•
Slide switch actuation of enable inputs
•
Expansion port headers
The use of these features is described in greater detail later in this document.
TPS2358 Dual-Slot ATCA™ AdvancedMC™ Controller Evaluation Module
2
SLUU328 – August 2008