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User's Guide

SLUU399A–April 2010–Revised March 2011

Thumbus2300

This users guide describes the function and operation of the Thumbus2300™ evaluation module. A

complete description, as well as schematic diagram and bill of materials are included.

Contents

1 Introduction .................................................................................................................. 1

2 Interfaces ..................................................................................................................... 2

3 Thumbus Bill of Materials, Component Placement, Schematic ....................................................... 4

List of Figures

1 Board Layer 1 ............................................................................................................... 6

2 Board Layer 2 ............................................................................................................... 7

3 Schematic.................................................................................................................... 8

List of Tables

1 Ordering Information........................................................................................................ 2

1 Introduction

The Thumbus interface board enables an IBM-compatible or other type (with required driver for the

particular platform) PC to communicate with Texas Instruments SMBus interface fuel 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.

1.1 Features

• Fully powered from the USB port

• Capable of providing a 10-mA 5.0-V source

• Complete interface between USB and SMBus interfaces using a simple API

• Equivalent to the USB to SMBus function found in the EV2300 module

1.2 Kit Contents

• Thumbus circuit module

• USB OTG cable (mini-A to mini-B cable, polarity does not matter in this design) for connecting the

Thumbus to a target device

Thumbus2300 is a trademark of Texas Instruments.

SLUU399A–April 2010–Revised March 2011 Thumbus2300

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Summary of content (10 pages)

PAGE 1
User's Guide SLUU399A – April 2010 – Revised March 2011 Thumbus2300 This users guide describes the function and operation of the Thumbus2300™ evaluation module. A complete description, as well as schematic diagram and bill of materials are included. 1 2 3 Contents Introduction .................................................................................................................. 1 Interfaces ......................................................................................................
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Interfaces 1.3 www.ti.com Ordering Information Table 1. Ordering Information EVM Part Number THUMBUS2300 2 Interfaces The Thumbus interfaces are described in the following table. The reference designators on the circuit board and the functions are also listed. Reference Designator 2.
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Interfaces www.ti.com The installer for the USB EVB installs: 1. A loader driver 2. A binary to load onto the USB interface IC 3. An Thumbus controller driver for direct access to the device 4. An Thumbus DLL for application access to the device 2.4 SMBus Interface (SMBus) Pin Name 1 GND 2 SMBC SMB clock pin. This pin is pulled to 3.3 VDC through a 10-kΩ resistor. 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-kΩ resistor. Do not exceed 5.
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Thumbus Bill of Materials, Component Placement, Schematic 3 www.ti.com Thumbus 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 Thumbus EVM. 3.1 Bill of Materials (BOM) C1, C4, C5, 0.
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Thumbus Bill of Materials, Component Placement, Schematic www.ti.com (1) Qty Ref Des 1 USB case Value USB case Black Description (2) (3) (4) Size Case with USB type A and type MiniA/B slots on each end with TI prints Part Number P3A-201005UTEX29014 MFR New Age Enclosures ( 5) 1 (5) PCB HPA467 New Age Enclosures 4330-B Santa fe Rd.,San Luis Obispo, Ca. 93401 805-595-1310.
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Thumbus Bill of Materials, Component Placement, Schematic 3.2 www.ti.com Thumbus Component Placement Figure 1.
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www.ti.com Thumbus Bill of Materials, Component Placement, Schematic Figure 2.
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Thumbus Bill of Materials, Component Placement, Schematic 3.3 www.ti.com Thumbus Schematic Figure 3.
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Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
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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.