Texas Instruments Dual-Slot ATCA AdvancedMC TPS2358 User Manual

TPS2358 Dual-Slot ATCA™ AdvancedMC™ Controller
1 Introduction
The Dual-Slot AdvancedMC™ Controller Evaluation Module (EVM) is a PCB platform for users to learn
about the features and operation of the TPS2358 integrated circuit from Texas Instruments (TI). The
TPS2358 Dual-Slot ATCA™ AdvancedMC™ Controller manages two 12-V and two 3.3-V power rails, and
features inrush and fault current limiting, FET OR'ing, input UVLO protection and logic-level enable inputs.
Current control on the 12-V rails has a high degree of programmability, including independent current limit
and fast trip thresholds. Overcurrent fault timing is managed with user-programmable shut-down delays,
and each of the four power channels has dedicated fault and power good reporting outputs. In addition,
current sense and pass and block FET's for the 3.3-V channels are fully integrated into the device.
Power management applications based on the TPS2358 are easily configured to meet the requirements
for 12-V and 3.3-V control of Advanced Mezzanine Card (AdvancedMC™) modules. Each device
incorporated onto a Carrier Card provides full control for two AdvancedMC™ slots according to the
requirements of the Advanced Telecommunications Computing Architecture (ATCA™) specification,
PICMG 3.0. In addition, the input supply FET OR'ing control for the 12-V rails facilitates efficient redundant
supply implementations in Micro Telecommunications Computing Architecture (MicroTCA™) systems.
2 Description
2.1 Module Overview
The TPS2358EVM is a single-board evaluation platform consisting of two main sections. When oriented
with the board nomenclature and switch labels in a normal, upright reading position towards the user, the
top portion contains the TPS2358 device and typically required components. The bottom section contains
more ancillary circuitry intended to facilitate exercising the device through various application scenarios.
Power connectors are organized with inputs along the left edge of the board, outputs along the right.
The main (upper) section of the board is comprised of the four power channels, including the featured
device, support passives, input and output banana jacks, control FET's (for 12-V rails), and power planes.
The board contains various capacitors for simulation of input bulk capacitance as may be present on
driven AdvancedMC™ modules; alternatively, the user's test loads can be connected at the output banana
jacks. Various timing capacitor options, for each power rail, are available and user-selectable via DIP
switch S7. Numerous jumpers are provided throughout the circuit for maximum configuration flexibility.
Test points are available for voltage and waveform monitoring.
The bottom section contains two expansion port connectors and the status LED's. Slide switches for
actuation of the chip enable inputs are organized in a row along the bottom edge of the PCB.
All trademarks are the property of their respective owners.
SLUU328 – August 2008
Submit Documentation Feedback
TPS2358 Dual-Slot ATCA™ AdvancedMC™ Controller Evaluation Module
User's Guide
SLUU328 – August 2008
Evaluation Module
1