TIDA-00043

1A Single-Input, Single Cell Li-Ion and Li-Pol Battery Charger Reference Design

TIDA-00043

Design files

Overview

This reference design delivers up to 1000 mA of continuous current to the battery output when programmed with a resistor on the ISET pin and is programmed at the factory for ~540 mA. The USB current limit modes are selected by the ISET2 pin and limits current to a maximum of 500 mA (logic high) or 100 mA (float or high impedance). A low on the ISET2 pin programs the charge current using the ISET resistor.

Features
  • Number of series cells: 1S
  • Maximum input volts: 12 V
  • Maximum charge current: 1 A
  • Linear topology
Personal electronics

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU097.PDF (287 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDR066.PDF (72 K)

Detailed schematic diagram for design layout and components

TIDR068.PDF (25 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDU098.PDF (104 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Battery charger ICs

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Data sheet: PDF
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BQ240911-cell, 1-A, Li-ion battery charger with 100kΩ NTC

Data sheet: PDF
Battery charger ICs

BQ240921-cell, 1-A, Li-ion battery charger with operation over JEITA and 10kΩ NTC

Data sheet: PDF
Battery charger ICs

BQ240931-cell, 1-A, Li-ion battery charger with operation over JEITA and 100kΩ NTC

Data sheet: PDF
Battery charger ICs

BQ240951-cell, 1-A, single-input, single-cell Li-ion and Li-polymer battery charger

Data sheet: PDF

Technical documentation

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Type Title Date
Test report TIDA-00043 Test Results Aug. 26, 2013

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