Texas Instruments TPS65023B - Manual
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Table of Contents:
- Page 2 – Printed-Circuit Board Assembly; C protocol. It then sends the I; Software; Features; Dynamic voltage scaling DCDC1; Electrical Performance Specification; Table 1. EVM Ordering Options; Table 2. Default LDO Output Voltages TPS65023B
- Page 3 – Input/Output Connector Description; J1 – VIN; This is the return connection for VIN.; J7 – Fault Outputs; Four fault outputs are available on this connector:
- Page 4 – Table 2; Setup
- Page 5 – Modifications; Setting the Output Voltage; Equation 1; Scaling the Output Voltage of DCDC2 From LDO2; From
- Page 6 – Board Layout; Layout; Board layout is critical for all switch mode power supplies.; Figure 1. Assembly Layer
- Page 7 – Figure 2. Top Layer Routing
- Page 10 – Figure 5. Bottom Layer Routing
- Page 11 – Schematic and Bill of Materials; Schematic
- Page 12 – Bill of Materials; SLVSAE3
- Page 14 – IMPORTANT NOTICE
User's Guide
SLVU394 – October 2010
TPS65023B/TPS650231EVM
The characteristics, operation, and use of the TPS65023B/TPS650231EVM-664 evaluation module (EVM)
are described in this document. This EVM is designed to help the user evaluate and test the various
operating modes of the TPS65023B/TPS650231. This user’s guide includes setup instructions for the
hardware and software, a schematic diagram, a bill of materials, and PCB layout drawings for the
evaluation module.
Contents
1
Introduction
..................................................................................................................
2
Electrical Performance Specification
.....................................................................................
3
Input/Output Connector Description
......................................................................................
4
Board Layout
................................................................................................................
5
Schematic and Bill of Materials
..........................................................................................
List of Figures
1
Assembly Layer
.............................................................................................................
2
Top Layer Routing
..........................................................................................................
3
Layer-2 Routing, GND Plane
..............................................................................................
4
Layer-3 Routing, Vin Plane
................................................................................................
5
Bottom Layer Routing
.....................................................................................................
6
TPS65023B/TPS650231EVM-664 Schematic
.........................................................................
List of Tables
1
EVM Ordering Options
.....................................................................................................
2
Default LDO Output Voltages TPS65023B
..............................................................................
3
Default LDO Output Voltages TPS650231
..............................................................................
4
TPS65023B/TPS650231EVM-664 Bill of Materials
...................................................................
1
Introduction
The Texas Instruments TPS65023B/TPS650231EVM is an integrated power management integrated
circuit (IC) for applications that are powered with one Li-ion or Li-polymer cell and require multiple power
rails. The TPS65023B/TPS650231 contains three highly efficient switching step-down converters, two
LDOs, and additional status and I/O pins. The device is controlled via an I
2
C interface (HPA172).
1.1
Requirements
In order for this EVM to operate properly, the following components must be connected and properly
configured.
1.1.1
Personal Computer
A personal computer with a USB port is required to operate this EVM. The TPS65023B/TPS650231
interface software, which is run on the personal computer (PC), communicates with the EVM via the PC
USB port. The user sends commands to the EVM as well as reads the contents of the
TPS65023B/TPS650231 internal registers through the USB port.
1
SLVU394 – October 2010
TPS65023B/TPS650231EVM
Copyright © 2010, Texas Instruments Incorporated
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Summary
Electrical Performance Specification www.ti.com 1.1.2 Printed-Circuit Board Assembly The TPS65023B/TPS650231EVM-664 PCB contains the TPS65023B/TPS650231 IC and its requiredexternal components. This board contains several jumpers and connectors that allow the user tocustomize the board for specific o...
www.ti.com Input/Output Connector Description 3 Input/Output Connector Description This section describes the jumpers and connectors on the EVM, as well as how to properly connect, setup, and use the TPS65023B/TPS650231EVM-664. J1 – VIN Input voltage from external power supply, recommended maximum 5...
Input/Output Connector Description www.ti.com J17 – VDCDC3 Output from switching regulator DCDC3; maximum output current 1 A. J18– GND Return for VDCDC3. J19 – J19 is the interface connector for the I2C interface. Connect a 10-pin ribbon cable between J13and the USB-to-GPIO interface. JP1 – DEF1 Set...
