Texas Instruments EV2300 User manual

EV2300
Evaluation Module Interface Board
February 2005 PMP EVMs
User’s Guide
SLUU159A

IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third−party products or services
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
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Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
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Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
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Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright ©2005, Texas Instruments Incorporated

EVM IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION
PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided
may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective
considerations, including product safety measures typically found in the end product incorporating the goods.
As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic
compatibility and therefore may not meet the technical requirements of the directive.
Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide, the kit may be returned
within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE
WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,
IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user
indemnifies TI from all claims arising from the handling or use of the goods. Please be aware that the products
received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction
of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic
discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE
TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not
exclusive.
TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein.
Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM
User’s Guide prior to handling the product. This notice contains important safety information about temperatures
and voltages. For further safety concerns, please contact the TI application engineer.
Persons handling the product must have electronics training and observe good laboratory practice standards.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any
machine, process, or combination in which such TI products or services might be or are used.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright ©2005, Texas Instruments Incorporated

EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range of 5 V and the output voltage
range of 3.3 V at 30 mA and 5 V at 50 mA.
Exceeding the specified input range may cause unexpected operation and/or irreversible
damage to the EVM. If there are questions concerning the input range, please contact a TI
field representative prior to connecting the input power.
Applying loads outside of the specified output range may result in unintended operation and/or
possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to
connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
During normal operation, some circuit components may have case temperatures greater than
30°C. The EVM is designed to operate properly with certain components above 70°C as long
as the input and output ranges are maintained. These components include but are not limited
to linear regulators, switching transistors, pass transistors, and current sense resistors. These
types of devices can be identified using the 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 ©2005, Texas Instruments Incorporated

Information About Cautions and Warnings
v
Preface
Read This First
About This Manual
This users guide describes the function and operation of the EV2300 evalua-
tion module. A complete description, as well as schematic diagram and bill of
materials are included.
How to Use This Manual
This document contains the following chapters:
-Chapter 1—Introduction
-Chapter 2—Interfaces
-Chapter 3—EV2300 Bill of Materials, Component Placement, and Sche-
matic
Information About Cautions and Warnings
This document may contain cautions and warnings.
This is an example of a caution statement.
A caution statement describes a situation that could potentially
damage your software or equipment.
This is an example of a warning statement.
A warning statement describes a situation that could potentially
cause harm to you.

Contents
vi
The information in a caution or a warning is provided for your protection.
Please read each caution and warning carefully.
This EVM contains components that can potentially be damaged by
electrostatic discharge, Always transport and store the EVM in its
supplied ESD bag when not in use. Handle using an antistatic
wristband. Operate on an antistatic work surface. For more
information on proper handling, refer to SSYA008.
FCC Warning
This equipment is intended for use in a laboratory test environment only. It gen-
erates, 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 en-
vironments 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.

Contents
vii
Contents
1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Kit Contents 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Ordering Information 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Interfaces 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Overview 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 EV2300 Controller 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 USB Interface (USB) 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 HDQ Interface (HDQ) 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 I2C/EEPROM Interface (I2C) 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 SMBus Interface (SMBus) 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 EV2300 Bill of Materials, Component Placement, and Schematic 3-1. . . . . . . . . . . . . . . . . . . .
3.1 Bill of Materials (BOM) 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 EV2300 Component Placement 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 EV2300 Schematic 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures
3−1 Board Layer 1 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3−2 Solder Mask 1 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3−3 Solder Mask 2 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3−4 Board Layer 2 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3−5 Component Placement 1 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3−6 Component Placement 2 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3−7 Internal Board Layer 1 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3−8 Internal Board Layer 2 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
1−1 Ordering Information 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
viii

1-1
Introduction
Introduction
This EVM interface board enables an IBM-compatible or other type (with
required driver for the particular platform) PC to communicate with Texas
Instruments SMBus, HDQ or DQ interface gas gauges via a Universal Serial
Bus (USB) port. In addition to this board, PC software is required to interpret
the gas gauge data to complete the evaluation system.
Topic Page
1.1 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Kit Contents 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Ordering Information 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1

Features
1-2
1.1 Features
-Fully powered from the USB port
-Capable of providing a 25-mA 3.3-V source
-Complete interface between USB and SMBus, I2C, and HDQ (8/16) inter-
faces using a simple API
1.2 Kit Contents
-EV2300 circuit module
-Standard USB cable
1.3 Ordering Information
Table 1−1. Ordering Information
EVM Part Number
EV2300

2-1
Interfaces
Interfaces
The EV2300 interfaces are described in the following table. The reference
designators on the circuit board and the functions are also listed.
Reference
Designator Function Description
HDQ and SMB SMBus, HDQ and DQ
Interface ports
Terminal block for connecting to a target device
I2C E2PROM I2C Interface Terminal for connecting to a target E2PROM or I2C interface
battery monitor
USB USB Interface Interface to host computer
Topic Page
2.1 Overview 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 EV2300 Controller 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 USB Interface (USB) 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 HDQ Interface (HDQ) 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 I2C/EEPROM Interface (I2C) 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 SMBus Interface (SMBus) 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2

Overview
2-2
2.1 Overview
The EV2300 is enclosed and is provided as shown.
2.2 EV2300 Controller
The EV2300 controller is a bq8012 running at 4 MHz. The controller firmware
is stored in flash memory and is executed by the core at power-up after the
boot ROM code verifies the integrity words.
The controller communicates with target device(s) through either: a 2-wire
SMBus communication port, a 1-wire HDQ port, or a 2-wire E2PROM I2C port.
The 2-wire SMBus communication port supports both SMBus and I2C
protocols.

USB Interface (USB)
2-3
Interfaces
2.3 USB Interface (USB)
The interface board connects to a USB port (version 1.1) on a host computer
and is powered from the port. All communication over the USB is proprietary
and does not fit any USB-defined device classes. Therefore communication
with the device requires a loader and driver from Texas Instruments.
The loader enumerates the device (determines it is present on the USB), then
loads the EV2300 controller firmware for the USB interface. Once the firmware
load is complete, the loader sends a command to the USB interface IC to
execute the new program and the loader driver exits. A new driver takes
control and enumerates the EV2300 and makes the device present to
programs running on the host.
The installer for the USB EVB installs:
1) A loader driver
2) A binary to load onto the USB interface IC
3) An EV2300 controller driver for direct access to the device
4) An EV2300 DLL for application access to the device
2.4 HDQ Interface (HDQ)
This interface allows a host computer to interact with a slave or target device
through the two-wire SMBus or the one-wire HDQ interfaces. The ports are
labeled with the corresponding signal names above each port connector.
Connect the signal and a ground reference (GND), and optionally VOUT, to a
target device.
The two-wire interface supports SMBus version 1.1 byte, word, block
transactions with and without PEC. The SMBus limits the capacitance on each
line (Data and Clock) to 100 pF. The EV2300 places 8 pF on each line, so a
device may place up to 92 pF total. If the capacitive load approaches or
exceeds 100 pF, SMBus communication may not be reliable.
Pin Name Description
1 GND Ground return/reference for HDQ interface.
3 HDQ HDQ one-wire interface. Pulled up to 3.3-V rail with a 10-kΩre-
sistor.
4 VOUT Supplies 3.3 VDC to a target. Current load should be limited to
30 mA.

I2C/EEPROM Interface (I2C)
2-4
2.5 I2C/EEPROM Interface (I2C)
This interface allows a host computer to interact with a target E2PROM or other
I2C interface device such as a battery monitor device through a two-wire I2C
interface. The interface contains a controlled power pin, the I2C clock and data
lines, and a ground reference.
Pin Name Description
1 GND Ground return. Connected to the SMD and HDQ GND.
2 SCL I2C clock. This line must be pulled up by the target.
3 SDA I2C data. This line must be pulled up by the target.
4 VOUT Controlled EEPROM power. Supplies 5 VDC to a target EE-
PROM IC
2.6 SMBus Interface (SMBus)
Pin Name Description
1 GND Ground reference
2 SMBC SMB clock pin. This pin is pulled to 3.3 VDC through a 10-kΩre-
sistor. Do not exceed 5.6 VDC on this pin.
3 SMBD SMB data pin. This pin is pulled to 3.3 VDC through a 10-kΩre-
sistor. Do not exceed 5.6 VDC on this pin.
4 NC Not connected on this board. This pin is floating.

3-1
EV2300 Bill of Materials, Component Placement, Schematic
EV2300 Bill of Materials, Component
Placement, Schematic
This chapter includes the schematic, component placement on the circuit
board, and a listing of the bill of materials for the EV2300 EVM.
Topic Page
3.1 Bill of Materials (BOM) 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 EV2300 Component Placement 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 EV2300 Schematic 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3

Bill of Materials (BOM)
3-2
3.1 Bill of Materials (BOM)
Qty Ref Des Description Size MFR Part Number
10 C1−C7,
C10−C12,
C15, C20
Capacitor, ceramic, 0.1 µF, 25 V, X7R,
10%
603 TDK C1608X7R1E104KT
0 C13 Open 603
2C16, C21 Capacitor, POSCAP 4.7 µF, 35 V, 20% 6032 (C) AVX TAJC475K035R
1 C18 Capacitor, ceramic, 2200 pF, 50 V,
C0G, 10%
603 TDK C1608C0G1H222KT
1 C19 Capacitor, ceramic, 150 pF, 50 V, C0G,
10%
603 TDK C1608C0G1H151KT
2C8, C9 Capacitor, ceramic, 22 pF, 50 V, C0G,
10%
603 TDK C1608C0G1H220KT
0D1−D7, D9,
D13−D15,
D17
Open 0.068 ×0.049
2D12, D19 Diode, LED, green, 20 mA, 0.9 mcd 0.068 ×0.049 Panasonic LN1371G−(TR)
1 D20 Diode, LED, red, 20 mA, 0.9 mcd 0.068 ×0.049 Panasonic LN1271R-(TR)
3 D21−D23 Diode, dual, 250 mA, 70 V SOT23 Vishay−Lit
eon
BAW56GS08
5D8, D10, D11,
D16,D18
Diode, low capacitance, TVS SOT23 General
Semi
GL05T
1 J1 Connector, USB upstream (Type B) 0.47” ×0.67” Molex 67068-1000
3 J13−J15 Header, friction lock assembly, 4−pin
right angle
0.400 x 0.500 Molex 22−05−3041
1 J2 Header, 11 pin, 100 mil spacing, (36-pin
strip)
121100 Sullins PTC36SAAN
0J3−J5, J8−J11 Open 0.038”
1 J7 Header, 2 pin, 100 mil spacing, (36-pin
strip)
0.100 ×2” Sullins PTC36SAAN
1 Q1 Transistor, NPN, high−performance,
500 mA
SOT23 Fairchild MMBT2222A
1 Q2 MOSFET, P−ch, −12 V, 4 A, 51 mΩSOT23 Vishay Si2335DS
4R1, R14, R16,
R19
Resistor, chip, 10 kΩ, 1/16 W, 5% 603 Std Std
12 R13, R15,
R21−R24,
R26, R27,
R45, R46,
R49, R50
Resistor, chip, 100 Ω, 1/16 W, 5% 603 Std Std
3R18, R42,
R43
Resistor, chip, 1 MΩ, 1/16 W, 1% 603 Std Std
1 R2 Resistor, chip, 15 kΩ, 1/16 W, 5% 603 Std Std
7 R3−R5,
R32−R34,
R39
Resistor, chip, 100 kΩ, 1/16 W, 5% 603 Std Std
3R30, R51,
R52
Resistor, chip, 620 Ω, 1/16 W, 5% 603 Std Std
2R31, R41 Resistor, chip, 10 Ω, 1/16 W, 5% 603 Std Std
1 R35 Resistor, chip, 61.9 kΩ, 1/16 W, 1% 603 Std Std

Bill of Materials (BOM)
3-3
EV2300 Bill of Materials, Component Placement, Schematic
Qty Part NumberMFRSizeDescriptionRef Des
1 R53 Resistor, chip, 0 Ω, 1/16 W, 5% 603 Std Std
1 R54 Resistor, chip, 113 kΩ, 1/16 W, 0.1% 603 Vishay TNPW06031133BT9RT1
1 R6 Resistor, chip, 1.5 kΩ, 1/16 W, 5% 603 Std Std
0R7, R10−R12,
R17, R20,
R25, R28,
R36−R38,
R40
Open 603
2R8, R9 Resistor, chip, 33 Ω, 1/16 W, 5% 603 Std Std
0 SW1 Open 5 mm ×5 mm
2U1, U2 IC, Single bus buffer gate with 3−state
output, with negative enable
DCK TI SN74LVC1G125DCK
1 U3 IC, Single bus buffer gate with 3−state
output, with positive enable
DCK TI SN74LVC1G126DCK
1 U4 IC, USB, general purpose, device
controller
0.480 ×0.480” TI TUSB3210PM
1 U5 IC, ultra low-power LDO regulator,
3.3 V, 50 mA
SOT23-5 TI TPS77033DBV
1 U6 IC, Advance gas gauge DBT38 TI bq8015DBT
1Y1 or Y4 Cryatal, high performance, 12.00 MHz,
SMT
0.126 ×0.126 Citizen or
Daishinku
CSA-309−12.000MABJ
or DSX630G-12.00MHz
0Y2 or Y3 Crystal, 32,768 MHz, 7−12 pF
capacitance
1.9mm ×5mm Daishinku
or ECS
DST520G-32.768kHz or
ECS-.327-8-14
1 N/A Plastic enclosure, bone, Texas
Instruments silkscreen
PacTec 84107−501−039
Wire Cable Assembly
1 Mate Connector, female, 0.100 centers 22−01−30
47
Molex
4 N/A Terminals, crimp, tin 08−50−011
4
Molex
N/A Wire, insulated 22 Awg, red, 18 inches
(±3 inches) (VOUT)
Any Any
N/A Wire, insulated 22 Awg, white, 18
inches (±3 inches) (SCL)
Any Any
N/A Wire, insulated 22 Awg, black, 18
inches (±3 inches) (GND)
Any Any
N/A Wire, insulated 22 Awg, brown, 18
inches (±3 inches) (SDA)
Any Any
1 N/A Heatshrink 1” Any Any
Notes: 1) These assemblies are ESD sensitive, ESD precautions should be observed.
2) These assemblies must be clean and free from flux and all contaminants. Use of no clean flux is not acceptable.
3) These assemblies must comply with workmanship standards IPC-A-610 Class 2.
4) Reference designators marked with an asterik (*) cannot be substituted. All other components can be substituted
with equivalent manufacturers components.
5) Make one EEPROM connector wire assembly for each assembly produced, from J15 mate, 4 −22 AWG wires and
crimp terminals. Wire colors for pin numbers are listed below. Strip and tin flying leads 0.25 inches from end of wire.
Red −pin #4 (signal VOUT)
Brown −pin #3 (signal SDA)
White −pin #2 (signal SCL)
Black −pin #1 (GND)

EV2300 Component Placement
3-4
3.2 EV2300 Component Placement
Figure 3−1. Board Layer 1

EV2300 Component Placement
3-5
EV2300 Bill of Materials, Component Placement, Schematic
Figure 3−2. Solder Mask 1

EV2300 Component Placement
3-6
Figure 3−3. Solder Mask 2