TIDA-00027

1.6MHz Synchronous Switch-Mode Li-Ion/Li-Polymer Stand-Alone Battery Charger Reference Design

TIDA-00027

Design files

Overview

This reference design is highly integrated stand-alone Li-ion and Li-polymer switch-mode battery charge solution with two integrated N-channel power MOSFETs and a power path selector gate driver. It offers a constant-frequency synchronous PWM controller with high accuracy regulation of input current, charge current and voltage. It also provides battery detection, pre-conditioning, charge termination, and charge status monitoring. The reference design is also called the HPA715 (-001). This solution is optimized for a 5V input voltage and charges a single cell 4.2V Li-ion battery.

Features
  • # Series Cells: 1 to 3S
  • Max Input Volts: 16V
  • Max Charge Current: 2.5A
  • Topology: Switch-Mode

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.

TIDR038.PDF (39 K)

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

TIDU070.PDF (424 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Battery charger ICs

BQ24133Standalone 1-3 cell 2.5A synchronous Buck battery charger with external Power Path

Data sheet document-pdfAcrobat PDF
Battery charger ICs

BQ24170Standalone 1-3 cell 4A synchronous Buck battery charger with Power Path selector

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
User guide TIDA-00027 Test Results Aug. 26, 2013

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