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Manual Texas Instruments BQ24450EVM

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  • Texas Instruments BQ24450EVM - page 1

    User's Guide SLUU464 – November 2010 bq24450EVM This user's guide describes the features and operation of the bq24450EVM Evaluation Module (EVM). This EVM assists users in evaluating the bq24450 linear battery charger. The manual includes the bq24450EVM bill of materials, board layout, and schematic. Contents 1 Introduction ............ ...

  • Texas Instruments BQ24450EVM - page 2

    Introduction www.ti.com 1 Introduction 1.1 EVM Features • Evaluation module for bq24450 (HPA691) • Charge controller for lead-acid batteries • Constant current and constant voltage modes • Accommodates external transistor in DPAK or TO-220 package • Programmable charge current • Pre-Charge for deeply discharged batteries 1.2 General Des ...

  • Texas Instruments BQ24450EVM - page 3

    www.ti.com Equipment 1.4 Recommended Operating Conditions Table 2. Recommended Operating Conditions Symbol Description Min Typ Max Unit Vin, J1 Supply Voltage 9.5 10.0 10.5 V Vout, J4 Battery Voltage (3-cell lead-acid battery) 4 7.5 V Iin Supply Current 0 0.5 A Iout Charge Current 0 0.5 A 2 Equipment 2.1 Power Supplies Power Supply #1 (PS#1): Adjus ...

  • Texas Instruments BQ24450EVM - page 4

    Procedure www.ti.com Replacement circuit for a 3-cell lead acid battery. BAT+ to BAT– voltage tracks the power supply input voltage, minus 1 diode drop Figure 2. Battery Load Circuit – PR1010-2 4 Procedure 4.1 Pre-charge Turn on PS #1, preset to 10 VDC. Verify voltage on VM #1. Turn on PS #2, preset to 5.2 VDC. Adjust PS #2 such that VM #2 show ...

  • Texas Instruments BQ24450EVM - page 5

    www.ti.com Functions and Features 5 Functions and Features 5.1 Changing Output Voltage and Charge Current This EVM is configured to charge a 3-Cell Lead Acid Battery with a maximum charge current of 450 mA. The EVM can be altered to charge lower or higher voltage batteries and can also be altered to have a lower or higher maximum charge current. Po ...

  • Texas Instruments BQ24450EVM - page 6

    PCB Layout Guideline www.ti.com 5.2 Options for External Transistor Using a Transistor in a TO-220 package The EVM is populated with a DPAK transistor for Q1. However, if desired, a TO-220 transistor can be used instead. Three holes have been placed in the PCB in parallel with the DPAK pad. Remove the DPAK transistor and replace it with a TO-220 tr ...

  • Texas Instruments BQ24450EVM - page 7

    www.ti.com Bill of Materials, Board Layouts and Schematic 7 Bill of Materials, Board Layouts and Schematic 7.1 Bill of Materials Table 3. Bill of Materials Reference Value Description Size Part Number MFR Designator C1, C4 Open Capacitor, Ceramic 1206 Std Std C2, C5 1.0µF Capacitor, Ceramic, 25V, X5R, 10% 603 Std Std C3 0.1µF Capacitor, Ceramic, ...

  • Texas Instruments BQ24450EVM - page 8

    Bill of Materials, Board Layouts and Schematic www.ti.com 7.2 Board Layout Figure 4. Top Assembly Layer Figure 5. Top PCB Layer 8 bq24450EVM SLUU464 – November 2010 Submit Documentation Feedback © 2010, Texas Instruments Incorporated ...

  • Texas Instruments BQ24450EVM - page 9

    www.ti.com Bill of Materials, Board Layouts and Schematic Figure 6. Bottom PCB Layer 7.3 Schematic Figure 7. bq24450 EVM Schematic 9 SLUU464 – November 2010 bq24450EVM Submit Documentation Feedback © 2010, Texas Instruments Incorporated ...

  • Texas Instruments BQ24450EVM - page 10

    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 th ...

  • Texas Instruments BQ24450EVM - page 11

    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 ...

Manufacturer Texas Instruments Category Battery Charger

Documents that we receive from a manufacturer of a Texas Instruments BQ24450EVM can be divided into several groups. They are, among others:
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All of them are important, but the most important information from the point of view of use of the device are in the user manual Texas Instruments BQ24450EVM.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Texas Instruments BQ24450EVM, service manual, brief instructions and user manuals Texas Instruments BQ24450EVM. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Texas Instruments BQ24450EVM.

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A complete manual for the device Texas Instruments BQ24450EVM, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Texas Instruments BQ24450EVM by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Texas Instruments BQ24450EVM.

A complete Texas Instruments manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Texas Instruments BQ24450EVM - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Texas Instruments BQ24450EVM, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Texas Instruments BQ24450EVM, that we can find in the current document
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5. FAQ - Frequently Asked Questions
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