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Cordless power tool

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Cordless power tool

Block diagram

Overview

Our integrated circuits and reference designs help you create highly-efficient cordless power tools with maximum battery efficiency and achieve smaller size, lighter weight, reduced audible noise, EMI/EMC requirements and lower system cost.

Design requirements

    Modern cordless power tool systems often require:

  • Highly-efficient motor drive with enhanced protection.
  • Compact drive with high peak current capability meeting thermal requirements.
  • Innovative user-interface solutions and reliable sensing solutions.
  • Secure, robust and reliable wireless connectivity.
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Block diagram

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Cordless power tool

M M BDC / BLDC motor BDC / BLDC motor Wireless interface Wireless interface Wireless connectivity Wireless connectivity Antenna Antenna Position sensor Position sensor Magnetic/hall sensors Magnetic/hall sensors Current sense Current sense Voltage sense Voltage sense Sensor Sensor Displacement sensor Displacement sensor Proximity sensor Proximity sensor Vibration sensor Vibration sensor Acceleration sensor Acceleration sensor Output user interface Output user interface LED driver LED driver Speaker output Speaker output Current & voltage sense Current & voltage sense COMP COMP REF REF AMP AMP AMP AMP Signal input/output protection Signal input/output protection ESD / TVS ESD / TVS Input user interface Input user interface Trigger switch Trigger switch Inductive / capacitive sensing Inductive / capacitive sensing MCU/CapTivate MCU/CapTivate Forward/reverse switch Forward/reverse switch Touch keys / Touch pad Touch keys / Touch pad Clutch setting dial Clutch setting dial Hall sensors Hall sensors DC DC Wired interface Wired interface I2C I2C SMBUS SMBUS SPI SPI I2C I2C UART UART CAN CAN Input power protection Input power protection TVS TVS Battery protection Battery protection Gate driver Gate driver MOSFETs MOSFETs Protector/monitor Protector/monitor Fuse Fuse Non-isolated DC/DC power supply Non-isolated DC/DC power supply LDO LDO DC/DC DC/DC Analog front end Analog front end REF REF ADC ADC AMP AMP COMP COMP MUX MUX Power stage Power stage Gate driver Gate driver MOSFET MOSFET Digital processing Digital processing MCU/MPU MCU/MPU LOGIC LOGIC Monitoring Monitoring Watchdog Watchdog Temperature Temperature Voltage supervisor Voltage supervisor RESET RESET

Power stage

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These integrated solutions are optimized for cost and size pin-count to drive a variety of motors. Power stage solutions also provide protection and power efficiency with high voltage and low voltage options.

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Motor drivers (10)
Brushed DC (BDC) motor drivers
BLDC drivers
  • DRV8334—60-V 1000-mA to 2000-mA 3-phase gate driver with accurate current sensing
    Data sheet: PDF | HTML
  • DRV8329—60V three-phase gate driver with single current-sense amplifier
    Data sheet: PDF | HTML
  • DRV8323—65-V max 3-phase smart gate driver with current shunt amplifiers
    Data sheet: PDF | HTML
  • DRV8328—60 V 1000/2000 mA 3-phase gate driver
    Data sheet: PDF | HTML
  • DRV8323R—65-V max 3-phase smart gate driver with buck regulator & current shunt amplifiers
    Data sheet: PDF | HTML
  • DRV8303—65-V max 3-phase gate driver with current shunt amplifiers & SPI
    Data sheet: PDF | HTML
Power management (19)
Half-bridge drivers
  • UCC27301A—120V 4A half-bridge driver with 8V UVLO, enable and interlock
    Data sheet: PDF | HTML
  • LM2105—107-V 0.5-A/0.8-A half-bridge gate driver with 5-V UVLO and integrated bootstrap diode
    Data sheet: PDF | HTML
  • LM2101—107-V, 0.5-A/0.8-A half-bridge gate driver with 8-V UVLO
    Data sheet: PDF | HTML
  • LM5109—100V / 1A peak half bridge gate driver
    Data sheet: PDF | HTML
  • LM5106—1.2-A, 1.8-A 100-V half bridge gate driver with 8V-UVLO and programmable dead-time
    Data sheet: PDF | HTML
Low-side drivers
  • UCC27517—4-A/4-A single-channel gate driver with 5-V UVLO and 13-ns prop delay in SOT-23 package
    Data sheet: PDF | HTML
  • UCC27537—2.5-A/5-A single-channel gate driver with 8-V UVLO, 35-V VDD, and EN pin
    Data sheet: PDF | HTML
eFuses & hot swap controllers
  • TPS2660—4.2-V to 60-V, 150mΩ, 0.1-2.23A eFuse with integrated input reverse polarity protection
    Data sheet: PDF | HTML
  • TPS25940-Q1—2.7-V to 18-V, 42mΩ, 0.6-5.3A automotive eFuse with current monitor and short to battery protection
    Data sheet: PDF | HTML
  • TPS2490—9-V to 80-V hot swap controller with power limiting and latch off
    Data sheet: PDF | HTML
  • TPS25921L—4.5-V to 18-V, 90mΩ, 0.4-1.6A eFuse with latch off fault response
    Data sheet: PDF | HTML
  • TPS2596—2.7-V to 19-V, 85mΩ, 0.13-2A eFuse with selectable over voltage protection clamp in leaded package
    Data sheet: PDF | HTML
MOSFETs
  • CSD19537Q3—100-V, N channel NexFET™ power MOSFET, single SON 3 mm x 3 mm, 14.5 mOhm
    Data sheet: PDF | HTML
  • CSD17576Q5B—30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.9 mOhm
    Data sheet: PDF | HTML
  • CSD88599Q5DC—60-V, N channel synchronous buck NexFET™ power MOSFET, SON 5 mm x 6 mm Dual-Cool™ power block, 40 A
    Data sheet: PDF | HTML
  • CSD17318Q2—30-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 16.9 mOhm
    Data sheet: PDF | HTML
  • CSD88584Q5DC—40-V, N channel synchronous buck NexFET™ power MOSFET, SON 5 mm x 6 mm Dual-Cool™ power block, 50 A
    Data sheet: PDF | HTML
  • CSD18510Q5B—40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.96 mOhm
    Data sheet: PDF | HTML
USB power switches & charging port controllers
  • TPS2557—0.5-5A adjustable ILIMIT, 2.5-6.5V, 22mΩ USB power switch, active-high
    Data sheet: PDF | HTML
  • TIDA-00620—12- to 24-V, 27-A Brushed DC Motor Reference Design
    Design guide: PDF Schematic: PDF
  • TIDA-00771—10.8V/250W, 97% Efficient,Compact Brushless DC Motor Drive w/Stall Current Limit Reference Design
    Design guide: PDF Schematic: PDF
  • TIDA-00772—18-V/400-W 98% Efficient Compact Brushless DC Motor Drive w/Stall Current Limit Reference Design
    Design guide: PDF Schematic: PDF
  • TIDA-00774—18V/1kW, 160A Peak, >98% Efficient, High Power Density Brushless Motor Drive Reference Design
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-010056—54-V, 1.5 kW, >99% Efficient, 70x69 mm2 power stage reference design for 3-phase BLDC drives
    Design guide: PDF Schematic: PDF
  • TIDA-010251—18-V, 600-W brushless DC motor inverter reference design
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-010276—36V, 50A 3-phase GaN inverter reference design for BLDC motor control
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-01485—36-V, 1-kW, 99% Efficient, 18-cm2 Power Stage Reference Design for Three-Phase BLDC Motors
    Design guide: PDF Schematic: PDF
  • TIDA-01516—Single Microcontroller 18-V/600-W BLDC Motor Control Reference Design With Bluetooth® Low Energy 5.0
    Design guide: PDF Schematic: PDF

Technical documentation

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Type Title Date
Technical article How to build a cost-competitive and robust auxiliary power supply PDF | HTML 26 Jun 2023
White paper MSP430™ FRAM Microcontrollers With CapTIvate™ Touch Technology 21 Oct 2016
Application note Current Sensing for Inline Motor-Control Applications 20 Oct 2016
Technical article Next-generation battery monitors: how to improve battery safety while improving ac PDF | HTML 14 Jul 2023
Application brief MSP430 and DRV83xx Selection Guide for Power Tools (Rev. A) PDF | HTML 14 Dec 2021
Application note Understanding Smart Gate Drive (Rev. D) 11 May 2022
Technical article Improve the performance of your power tool design with power blocks PDF | HTML 09 Jun 2023
Technical article Connectivity helps integrate intelligent motor control on a single MCU PDF | HTML 09 Jun 2023
Technical article Protect battery-powered tools in harsh environments with Hall effect sensors PDF | HTML 05 Sep 2023

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