TIDA-03042

Tiny I2C-Controlled Single-Cell Charger Reference Design for Wearable Applications

TIDA-03042

Design files

Overview

This is a single-cell charger reference design for wearable applications which have very limited design space. TIDA-03042 works with a host controller through I2C control, supports 5-V, 9-V, or 12-V input adaptors and can charge up to 1.5 A. The actual charger design only requires a space of 1.7 cm², allowing for high-charging efficiency while minimizing the total count of components and board size.

Features
  • Up to 1.5 A single-cell charger
  • Charge efficiency of 92% at 0.5 A and 1.5 A
  • Low-power PFM mode for light-load operations
  • High-input voltage operation range from 3.9 V to 14 V
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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.

TIDUCW5.PDF (1310 K)

Reference design overview and verified performance test data

TIDRQG4.PDF (241 K)

Detailed schematic diagram for design layout and components

TIDRQG5.PDF (32 K)

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

TIDRQG6.PDF (53 K)

Detailed overview of design layout for component placement

TIDRQG8.ZIP (1986 K)

Files used for 3D models or 2D drawings of IC components

TIDCDB2.ZIP (149 K)

Design file that contains information on physical board layer of design PCB

TIDRQG7.PDF (129 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Battery charger ICs

BQ25898I2C 1cell 4A buck battery charger with power path and MaxchargeTM for High input

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Tiny Single-Cell Charger Reference Design for Wearable Applications Mar. 21, 2017

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