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SLUUBA9A – June 2015 – Revised February 2017
Copyright © 2015–2017, Texas Instruments Incorporated
Using the TPS53647: PWR710-EVM, 4-Phase, D-CAP+ Step-Down, DC-DC
Analog with PMBus Interface
User's Guide
SLUUBA9A – June 2015 – Revised February 2017
Using the TPS53647: PWR710-EVM, 4-Phase, D-CAP+
Step-Down, DC-DC Analog with PMBus Interface
The PWR710-EVM evaluation module (EVM) uses the TPS53647 controller. The controller is 4-phase, D-
CAP+™ synchronous buck driverless controller with PMBus™ interface. The device operates using a
voltage supply between 4.5 V and 17 V. The controller allows programming and monitoring via the PMBus
interface. This PWR710-EVM uses the CSD95372B,
Synchronous Buck NexFET™ Smart Power Stage
(
) device as the power stage.
Contents
1
Description
....................................................................................................................
1.1
Typical Applications
................................................................................................
1.2
Features
..............................................................................................................
2
Electrical Performance Specifications
.....................................................................................
3
Schematic
.....................................................................................................................
4
Test Setup
....................................................................................................................
4.1
Test and Configuration Software
.................................................................................
4.2
Test Equipment
.....................................................................................................
4.3
Recommended Test Setup
........................................................................................
4.4
USB Interface Adapter and Cable
..............................................................................
4.5
List of Test Points and Connectors
.............................................................................
5
EVM Configuration Using the Fusion GUI
..............................................................................
5.1
Configuration Procedure
.........................................................................................
6
Test Procedure
.............................................................................................................
6.1
Line/Load Regulation and Efficiency Measurement Procedure
.............................................
6.2
Control Loop Gain and Phase Measurement Procedure
....................................................
6.3
Efficiency
...........................................................................................................
6.4
Equipment Turn-on and Shutdown
..............................................................................
7
Performance Data and Typical Characteristic Curves
.................................................................
8
EVM Assembly Drawing and PCB Layout
..............................................................................
9
List of Materials
.............................................................................................................
10
Fusion GUI
..................................................................................................................
1
Description
The PWR710-EVM operates as a single output converter. The nominal 12-V bus produced a regulated,
1.0-V output at up to 120 A of load current. The PWR710-EVM demonstrates the controller in a typical
low-voltage high-current application while providing a number of test points to evaluate the performance of
the controller. Refer to TPS53647 (
) datasheet for more information on multi-phase
configuration.
1.1
Typical Applications
•
ASIC power in communications equipment
•
High density power solutions
•
Server power
•
Smart power systems
