Texas Instruments BQ24450EVM - Manual

Texas Instruments BQ24450EVM

Texas Instruments BQ24450EVM – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

1 Page 1
2 Page 2
3 Page 3
4 Page 4
5 Page 5
6 Page 6
7 Page 7
8 Page 8
9 Page 9
10 Page 10
11 Page 11
Page: / 11

Table of Contents:

  • Page 2 – Introduction; EVM Features; spacer; Jumper Description
  • Page 3 – Recommended Operating Conditions; Table 2. Recommended Operating Conditions; Equipment; Power Supplies; Figure 2; Meters; Equipment Setup; The original test setup of HPA691 is shown in
  • Page 4 – Figure 2. Battery Load Circuit – PR1010-2; Procedure; Max Charge; There should be no charge current in this condition.
  • Page 5 – Functions and Features; Changing Output Voltage and Charge Current; WARNING; Q1 and the surrounding area of the PCB may become hot.; Changing the value of Itaper; Figure 3. Calculating the Value of I
  • Page 6 – Options for External Transistor; resistor is; Other Options; PCB Layout Guideline
  • Page 7 – Bill of Materials, Board Layouts and Schematic; Bill of Materials; Table 3. Bill of Materials
  • Page 8 – Board Layout; Figure 4. Top Assembly Layer
  • Page 9 – Figure 6. Bottom PCB Layer; Schematic
  • Page 11 – IMPORTANT NOTICE
Loading the manual

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

..................................................................................................................

2

1.1

EVM Features

......................................................................................................

2

1.2

General Description

................................................................................................

2

1.3

I/O Description and Jumper Functions

..........................................................................

2

1.4

Recommended Operating Conditions

...........................................................................

3

2

Equipment

....................................................................................................................

3

2.1

Power Supplies

.....................................................................................................

3

2.2

Loads

................................................................................................................

3

2.3

Meters

...............................................................................................................

3

3

Equipment Setup

............................................................................................................

3

4

Procedure

....................................................................................................................

4

4.1

Pre-charge

..........................................................................................................

4

4.2

Max Charge

.........................................................................................................

4

4.3

Charge Termination

................................................................................................

4

4.4

Re-Charge

..........................................................................................................

4

5

Functions and Features

....................................................................................................

5

5.1

Changing Output Voltage and Charge Current

................................................................

5

5.2

Options for External Transistor

...................................................................................

6

5.3

Other Options

.......................................................................................................

6

6

PCB Layout Guideline

......................................................................................................

6

7

Bill of Materials, Board Layouts and Schematic

........................................................................

7

7.1

Bill of Materials

.....................................................................................................

7

7.2

Board Layout

.......................................................................................................

8

7.3

Schematic

...........................................................................................................

9

List of Figures

1

Original Test Setup for HPA691 (bq24450 EVM)

.......................................................................

3

2

Battery Load Circuit – PR1010-2

.........................................................................................

4

3

Calculating the Value of I

TAPER

.............................................................................................

5

4

Top Assembly Layer

........................................................................................................

8

5

Top PCB Layer

..............................................................................................................

8

6

Bottom PCB Layer

..........................................................................................................

9

7

bq24450 EVM Schematic

..................................................................................................

9

List of Tables

1

I/O Description

...............................................................................................................

2

2

Recommended Operating Conditions

....................................................................................

3

3

Bill of Materials

..............................................................................................................

7

1

SLUU464 – November 2010

bq24450EVM

Submit Documentation Feedback

© 2010, Texas Instruments Incorporated

"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.

Summary

Page 2 - Introduction; EVM Features; spacer; Jumper Description

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 deepl...

Page 3 - Recommended Operating Conditions; Table 2. Recommended Operating Conditions; Equipment; Power Supplies; Figure 2; Meters; Equipment Setup; The original test setup of HPA691 is shown in

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 Equipmen...

Page 4 - Figure 2. Battery Load Circuit – PR1010-2; Procedure; Max Charge; There should be no charge current in this condition.

Procedure www.ti.com Replacement circuit for a 3-cell lead acid battery. BAT+ to BAT– voltage tracks the power supply inputvoltage, 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 ...

Other Texas Instruments Models

All Texas Instruments Other