TIDA-00047

2.5A Dual-Input Single Cell Switchmode Li-Ion Battery Charger with Power Path Reference Design

TIDA-00047

Design files

Overview

This reference design is a complete charger solution for evaluating compact, flexible, high-efficiency, USB-friendly, switch-mode charge management solution for single-cell, Li-ion and Li-polymer batteries used in a wide range of portable applications. The solution integrates a synchronous PWM controller, power MOSFETs, input-current sensing, high-accuracy current and voltage regulation, charge termination and power path management into a small WCSP package.

Features

• # Series Cells: 1S
• Max Input Volts: 10V
• Max Charge Current: 2.5A
• Topology: Switch mode
• Communication: I2C
• Features: Integrated protection

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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.

TIDU105.PDF (842 K)

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

TIDR075.PDF (97 K)

Detailed schematic diagram for design layout and components

TIDR076.PDF (38 K)

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

TIDU106.PDF (277 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Battery charger ICs

BQ24160I2C 1cell 2.5A Buck battery charger with dual-input, Power Path and USB detection

Data sheet: PDF | HTML
Battery fuel gauges

BQ27530-G1System-side Impedance-Track fuel (gas) gauge with direct battery connection

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report TIDA-00047 Test Results Aug. 27, 2013

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