TIDA-00602

Electric Toothbrush Controller Reference Design

TIDA-00602

Design files

Overview

This reference design uses our low-voltage H-Bridge motor driver with an integrated low dropout (LDO) voltage regulator and an ultra-low-power microcontroller (MCU) to demonstrate a full implementation of a battery-powered electric toothbrush.

Features
  • Battery voltage ranging from 2 V to 5.5 V
  • Delivers 5-A continuous and 8-A peak-drive current
  • Small PCB form factor of 43.2 mm x 14.6 mm
  • Low-component count to reduce cost
  • Less than 50-nA battery leakage current when off
Download View video with transcript Video

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.

TIDUAZ7.PDF (2036 KB)

Reference design overview and verified performance test data

TIDRIK9.PDF (85 KB)

Detailed overview of design layout for component placement

TIDRIK8.PDF (201 KB)

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

TIDRIL1.ZIP (519 KB)

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

TIDCBC4.ZIP (312 KB)

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

TIDRIL0.PDF (537 KB)

PCB layer plot file used for generating PCB design layout

TIDRIK7.PDF (137 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430G221016-MHz MCU with 2-KB Flash, 128-B SRAM, comparator, timer

Data sheet: PDF
Inverting buffers & drivers

SN74LVC1G14Single 1.65-V to 5.5-V inverter with Schmitt-Trigger inputs

Data sheet: PDF | HTML
D-type flip-flops

SN74LVC1G80Single Positive-Edge-Triggered D-Type Flip-Flop

Data sheet: PDF | HTML
Brushed DC (BDC) motor drivers

DRV88507-V, 8-A H-bridge motor driver with LDO and current feedback

Data sheet: PDF | HTML

Start development

Software

Firmware

TIDCBC5 — TIDA-00602 Firmware

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-00602 Electric Toothbrush Controller Reference Design
Download options

TIDCBC5 TIDA-00602 Firmware

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Latest version
Version: 01.00.00.00
Release date: Nov 1, 2015
Hardware development
Reference design
TIDA-00602 Electric Toothbrush Controller Reference Design

Release Information

The design resource accessed as www.ti.com/lit/zip/tidcbc5 or www.ti.com/lit/xx/tidcbc5/tidcbc5.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDCBC5. Please update any bookmarks accordingly.

Technical documentation

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Type Title Date
* Design guide Electric Toothbrush Controller Design Guide Nov 2, 2015

Related design resources

Hardware development

EVALUATION BOARD
DRV8850EVM DRV8850EVM - Evaluation Module for Low-Voltage H-Bridge Motor Driver with LDO Voltage Regulator

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