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Copyright
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EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the specified input and output ranges described in the EVM User’s
Guide.
Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the
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ranges are maintained. These components include but are not limited to linear regulators, switching
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EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices
during operation, please be aware that these devices may be very warm to the touch.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright
2003, Texas Instruments Incorporated
About This Manual
Preface
Read This First
This User’s Guide describes the characteristics, operation, and use of the
TPS65010EVM-230 evaluation module (EVM), which helps you evaluate
and test the various operating modes of the TPS65010. The guide includes
setup instructions for the hardware and software, a schematic diagram, a
bill of materials (BOM), and PCB layout drawings for the evaluation
module.
How to Use This Manual
This document contains the following chapters:
❏❏❏❏ Chapter 1 – Introduction
❏❏❏❏ Chapter 2 – Setup
❏❏❏❏ Chapter 3 – Board Layout
❏❏❏❏ Chapter 4 – Schematic and Bill of Materials
Related Documentation From Texas Instruments
TPS65010 Data Sheet (SLVS149)
If You Need Assistance
Please contact your local TI sales representative.
FCC Warning
This equipment is intended for use in a laboratory test environment only. It
generates, uses, and can radiate radio frequency energy and has not been
tested for compliance with the limits of computing devices pursuant to
subpart J of part 15 of FCC rules, which are designed to provide
reasonable protection against radio frequency interference. Operation of
this equipment in other environments may cause interference with radio
communications, in which case the user at his own expense will be
required to take whatever measures may be required to correct this
interference.
v
vi
Contents
Read This First .................................................................................................................v
About This Manual...................................................................................................... v
How to Use This Manual ............................................................................................v
Related Documentation From Texas Instruments.......................................................v
If You Need Assistance .............................................................................................. v
Table 4-1. Bill of Materials. ...........................................................................................4-3
vii
viii
Chapter 1
Introduction
The Texas Instruments TPS65010EVM-230 is an integrated power and
battery management integrated circuit for applications that are powered
with one Li-Ion or Li-Polymer cell and require multiple power rails. The
TPS65010 contains two highly efficient switching step-down converters,
two LDOs, a battery charger, and additional status and I/O pins. You
control the device via an I
Topic Page
2
C interface.
1.1 Requirements 1-2
1-1
Introduction
1.1 Requirements
To operate this EVM properly, you must connect and properly configure the
following components:
❏❏❏❏ Personal computer
❏❏❏❏ Printed circuit board assembly
❏❏❏❏ USB to I
A computer with a USB port is required to operate this EVM. The
TPS65010 interface software runs on the PC and communicates with
the EVM via the PC USB port. You can send commands to the EVM
and read the contents of the TPS65010 internal registers through the
USB port.
The TPS65010EVM-230 PCB contains the TPS65010 IC and its
required external components. This board contains several jumpers
and connectors that enable you to customize the board for specific
operating conditions.
2
C interface board (EV2300)
The EV2300 is the link that allows the PC and the EVM to
communicate. One end of the EV2300 connects to the PC with the
supplied USB cable; the other end of the EV2300 connects to the EVM
with the supplied Molex cable.
■ When you write a command to the EVM, the interface program run
from the PC sends the command to the PC USB port. The EV2300
receives the USB command, converts the signal to an I
and sends the I
2
C signal to the TPS65010 board.
2
C protocol,
■ When you read a status register from the EVM, the PC sends a
command to read a register on the EVM. When the EVM receives
the command, it reports the status of the register via the I
interface. The EV2300 receives the information on the I
2
2
C
interface, converts it to a USB protocol, and sends it to the PC.
❏❏❏❏ Software
Texas Instruments has provided software to assist you in evaluating
this EVM. When downloading software from TI’s website:
1) Download the master installation file (SLVC021.zip).
2) Unzip the files to a temporary directory.
3) Run the START.bat to start the installation menu.
4) Install the TPS65010EVM controller program first.
C
5) Install the USB drivers next. (Be sure that the EV2300 board is not
Note: Additional manual installation instructions are in the
drivers\readme.txt file.
Please see the application report Understanding the TPS65010 Software (SLVA154) for a detailed description of the software and how
it works.
1-2
connected to your computer).
Introduction
When installing from a CD:
1) Insert the CD, it should start up automatically. If not, run the
Start.bat file on the CD.
2) Install the TPS65010EVM controller program from the main menu
first.
3) Install the USB drivers next. (Be sure the EV2300 board is not
connected to your computer).
Additional manual installation instructions are in the drivers\readme.txt
file.
1-3
Introduction
1-4
Chapter 2
Setup
This chapter describes the jumpers and connectors on the EVM and how
to properly connect, setup, and use the TPS65010EVM-230.
Topic Page
2.1 Input/Output Connectors 2-2
2.2 Setup 2-3
2-1
Setup
2.1 Input/Output Connectors
Table 2-1 lists the input/output connectors
Table 2-1. Input/Output Connectors
Setup Connection Description
J1-USB USB charger input/output header can be used as either an input or an output.
If R6 is opened, then J1 can be used as an input. An external 5 V can be supplied
to the EVM to simulate the USB 5-V bus.
If R6 is shorted, J1 may be used as an output. The USB 5-V bus from the PC gets
routed through the EV2300 to J5. Shorting R6 connects the USB 5-V bus to J1.
J2-GND Return connection for USB charger input/output.
J3-AC AC charger input
J4-GND Return connection for AC charger input/output
J5-Interface
connector
J6-Vibrator Header that connects optional vibrator to EVM
J7-GPIO Header that contains four GPIO signals that connect directly to TPS65010
J8-Interface header Header that duplicates the signals from J5 interface connector
J9-VBAT-VINMAIN VBAT output and VINMAIN and VINCORE inputs of the TPS65010 are connected
J10-GND Return connection for auxiliary VINMAIN supply
J11-Battery Connect a user-supplied Li-Ion battery to this header. If the battery has a
J12-VCORE Output voltage of the core converter
J13- GND Return connection for core converter
Connect one end of supplied Molex cable to this connector. The other end attaches
to USB connector on EV2300.
to this header. Short these two pins together to run the TPS65010 main and core
converters from the battery. To easily evaluate the performance of the TPS65010
when running from different battery voltages, remove the jumper and connect an
auxiliary supply to the VINMAIN pin.
temperature sensor, connect it to the TS pin. See the datasheet for a description of
how to setup the EVM for a battery with a temperature sensor. The EVM default
configuration is for a battery with no temperature sensor. R22 simulates a 10-kΩ
battery thermistor.
J14-VMAIN Output voltage of main converter
J15-GND Return connection for main converter
J16-Input/Output BIT Header that contains the /MPU_RST, /RESPWRON, /PWRFAIL, /INT, and
LOW_PWR inputs and outputs of the EVM
2-2
Setup
Setup Connection Description
J17-LDO1Input/output connection for LDO1. VINLDO1 can be connected to an external
supply or connected to another output voltage on the EVM. The EVM default
configuration connects VMAIN to VINLDO1. Remove R25 if a voltage other than
VMAIN is used as input to VINLDO1.
J18-GND Return connection for LDO1 and LDO2 low dropout linear regulators
J19-LDO2 Input/output connection for LDO2. VINLDO2 can be connected to an external
supply or connected to another output voltage on the EVM. The EVM default
configuration connects VMAIN to VINLDO2. Remove R26 if a voltage other than
VMAIN will be used as input to VINLDO2.
JP1-DEFCORE Jumper allows you to select default core voltage at startup. Connect DEFCORE to
VBAT to select default as 1.6 V. Connect DEFCORE to GND to select default as
1.5 V.
JP2-DEFMAIN Jumper allows you to select the default main voltage at startup. Connect DEFMAIN
to VBAT to select default as 3.3V. Connect DEFMAIN to GND to select default as
3.0 V.
JP3- PS_SEQ Jumper selects power supply turn-on/ turn-off sequence. Connect PS_SEQ to VCC
to power the main converter up first and down last. Connect PS_SEQ to GND
power the core converter up first and down last.
JP4- GPIO PULLUP Jumper to select between VBAT and VMAIN for GPIO pull-up voltage on EVM
JP5-LOW_POWER Connect LOW_POWER to VBAT to assert LOW_POWER signal. Remove jumper
to deassert LOW_POWER signal. The ENABLE LP BIT must be set in VDCDC1
register before low-power mode is activated.
JP6-BATT_COVER Connect BATT_COVER to VBAT to assert BATT_COVER signal.
S1-PB_ONOFF Normally open momentary pushbutton switch that, when pressed, connects VBAT
to PB_ONOFF input of TPS65010
S2-/HOT_RST Normally open momentary pushbutton switch that, when pressed, connects
/HOT_RST input of TPS65010 to GND
2.2 Setup
Perform the following procedure before operating the EVM:
1) Install the TPS65010EVM software.
2) Connect input voltages and loads to the EVM.
3) Configure all EVM jumpers.
4) Connect the Molex cable between the EVM and the EV2300. Note
that the Molex cable must connect to the I
EV2300.
2
C connector on the
5) Connect the USB cable between the computer and the EVM.
6) Turn on all supplies and loads.
7) Run the TPS65010EVM software.
2-3
Setup
2-4
Chapter 3
Board Layout
This chapter provides the TPS65010EVM-230 board layout and
illustrations.
Topic Page
3.1 Layout 3-2
3-1
Board Layout
3.1 Layout
Board layout is critical for all switch mode power supplies. Figures 1-5
show the board layout for the TPS65010EVM-230 PWB. The nodes with
high switching frequencies and currents are short and are isolated from the
noise sensitive feedback circuitry. Careful attention has been given to the
routing of high frequency current loops. See the datasheet for specific
layout guidelines.
Figure 3-1. Assembly Layer.
3-2
Figure 3-2. Top Layer Routing
Board Layout
Figure 3-3. Layer 2 Routing
3-3
Board Layout
Figure 3-4. Layer 3 Routing
Figure 3-5. Bottom Layer Routing
3-4
Chapter 4
Schematic and Bill of Materials
This chapter provides the TPS65010EVM-230 schematic and bill of
materials.