Cordless handheld garden tool

Overview

Description

Related applications

Our integrated circuits and reference designs help you create sophisticated cordless handheld garden tools with high torque capability, maximum efficiency and battery operating time with enhanced protection.

Design requirements

Optimal cordless handheld garden tools often require:

Compact and high-efficient motor drives that meet thermal requirements.

High peak current capability with reliable protection and safety features.

Innovative user-interface solutions and accurate sensing solutions.

Secure, robust and reliable wireless connectivity.

Input power protection

Reliable protection against surge or transient voltage.

Products

ESD protection diodes

ESD351—1.8-pF, 3.3V, ±30-kV ESD protection diode with 6.5-V, 16-A TLP clamping in 0402 package for USB 2.0

TPD2E001—Dual 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0

TPD4E004—Quad 1.6-pF, 5.5-V, ±8-kV ESD protection diode with VCC pin for High Speed Interfaces

TPD2E007—Dual 10-pF, ±13-V, ±8-kV ESD protection diode for AC Signal Data Interfaces

TVS diodes

TVS3300—33V flat-clamp surge protection device

TVS0500—5V flat-clamp surge protection device

TVS1400—14V flat-clamp surge protection device

Battery protection

Reliable and robust protection switches ensure correct charging and discharging, thereby, enabling battery protection from over current short circuit conditions.

Products

eFuses & hot swap controllers

TPS2490—9-V to 80-V hot swap controller with power limiting and latch off

TPS25921L—4.5-V to 18-V, 90mΩ, 0.4-1.6A eFuse with latch off fault response

TPS2596—2.7-V to 19-V, 85mΩ, 0.13-2A eFuse with selectable over voltage protection clamp in leaded package

Battery protectors

BQ7718—Family 2-5S Overvoltage Protector with Internal Delay Timer

BQ76200—High-side n-channel FET driver

N-channel MOSFETs

CSD17576Q5B—30-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.9 mOhm

CSD18532Q5B—60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 3.2 mOhm

CSD18512Q5B—40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 1.6 mOhm

CSD13381F4—12-V, N channel NexFET™ power MOSFET, single LGA 1 mm x 0.6mm, 180 mOhm, gate ESD protection

P-channel MOSFETs

CSD23381F4—-12-V, P channel NexFET™ power MOSFET, single LGA 0.6 mm x 1 mm, 175 mOhm, gate ESD protection

Non-isolated DC/DC power supply

Cost effective, high efficiency, small form factor DC/DC solutions with excellent EMI performance.

Products

Buck converters (integrated switch)

LMR51606—SIMPLE SWITCHER® power converter with 4.5V-to-65V 0.6A synchronous buck and 25µA quiescent current

LMR51610—SIMPLE SWITCHER® power converter with 4.5V-to-65V 1A synchronous buck and 25µA quiescent current

LMR36520—SIMPLE SWITCHER® 4.2-V to 65-V, 2-A synchronous step-down converter with 26-uA IQ

LM5163—100-V input, 0.5-A synchronous buck DC/DC converter with ultra-low IQ

Buck controllers (external switch)

LM5146—100-V synchronous buck DC/DC controller with wide duty-cycle range

Linear & low-dropout (LDO) regulators

TLV755P—500-mA high-PSRR low-IQ low-dropout voltage regulator with enable

TPS7A43—50-mA, 85-V, ultra-low IQ, dual low-dropout voltage regulator with power good and precision enable

TLV741P—150-mA low-dropout (LDO) voltage regulator with active output discharge and enable

TPS709—150-mA, 30-V, ultra-low-IQ, low-dropout voltage regulator with reverse current protection and enable

Boost converters (integrated switch)

TLV61046A—28-V Output Voltage Boost Converter with Power Diode and Isolation Switch

TPS61299—95-nA low IQ 5.5-V boost converter with input current limit and fast transient performance

TPS61222—0.7-VIN, 5-V fixed output voltage boost converter with 5.5-μA quiescent current

TPS61376—25-V, 4.5-A, boost converter with 2.5% accuracy input average current limit & true disconnection

Sensors

Innovative solutions for a wide range of sensor types that are also applicable to cordless tools including displacement, position, speed, acceleration, force and proximity sensing. Optimized for cost, performance and reliability.

Products

Inductive sensor AFEs

LDC1612—2-Ch, 28-bit, high-resolution Inductance to digital converter

LDC1312—2-Ch, 12-bit, general purpose inductance to digital converter

LDC1614—4-Ch, 28-bit, high-resolution Inductance to digital converter

LDC1314—4-Ch, 12-bit, general purpose inductance to digital converter

Analog temperature sensors

LMT84—1.5V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92

LMT87—±2°C 2.7V to 5.5V analog output temperature sensor with -13.6 mV/°C gain

LMT86—2.2V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92

LMT87-Q1—Automotive ±2.7°C 2.7V to 5.5V analog output temperature sensor with -13.6 mV/°C gain

Temperature switches

TMP302-Q1—Automotive, Pin-Selectable Trip Point 1.4V-Capable Family of Temperature Switches

Hall-effect latches & switches

TMAG5115—High-speed Hall-effect latch with low jitter (fast response)

DRV5013—High voltage (up to 38-V), high bandwidth (30-kHz) Hall effect latch

Digital temperature sensors

LMT01—0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface

Analog front end

The analog front end provides signal conditioning for a wide range of sensor types applicable to cordless tools. Choose between scalable analog and digital output solutions.

Products

Precision ADCs

ADS8320—16-Bit, High-Speed, 2.7V-to-5V Micropower Sampling Analog-to-Digital Converter (ADC)

ADS124S08—24-bit, 4-kSPS, 12-ch delta-sigma ADC with PGA and voltage reference for sensor measurement

Series voltage references

REF35—650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference

REF70—Ultra-high-precision voltage reference with low noise and low drift

REF2025—8-ppm/°C drift, low-power, dual-output Vref & Vref/2 voltage reference

REF20-Q1—Automotive low-drift, low-power, series voltage reference

Analog switches & muxes

TS5A3159A—1-Ω, 5-V, 2:1 (SPDT), 1-channel general-purpose analog switch with powered-off protection

TS5A21366—0.75-Ω on-state resistance, 5-V, 1:1 (SPST), two-channel analog switch with 1.8-V input logic

TPS3702—High-accuracy window voltage detector for overvoltage and undervoltage monitoring

Power stage

Highly reliable, discrete and integrated solutions optimized for cost, size and pin count to drive any kind of motors. Well-protected and power-efficient for high and low voltages.

Products

Brushed DC (BDC) motor drivers

DRV8701—47-V H-bridge smart gate driver

BLDC drivers

DRV8300—100-V max simple 3-phase gate driver with bootstrap diodes

DRV8350R—102-V max 3-phase smart gate driver with buck regulator

Input user interface

Highly robust and reliable solutions for trigger switches, speed dials, buttons and sliders, and touch and proximity detection. This contactless user interface is power efficient and highly resistant to moisture and EMI (especially conducted noise).

Products

MSP430 microcontrollers

MSP430FR4131—16 MHz MCU with 4KB FRAM, 0.5KB SRAM, 10-bit ADC, LCD, UART/SPI/I2C, IR logic, timer

MSP430F5528—25 MHz MCU with 128KB Flash, 8KB SRAM, 12-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier

MSP430G2553—16 MHz MCU with 16KB Flash, 512B SRAM, comparator, UART/SPI/I2C, timer

MSP430F5172—25 MHz MCU with 32KB Flash, 2KB SRAM, 10-bit ADC, comparator, DMA, 16-bit High Resolution timer

Inductive sensor AFEs

LDC1612—2-Ch, 28-bit, high-resolution Inductance to digital converter

LDC1314—4-Ch, 12-bit, general purpose inductance to digital converter

LDC1312—2-Ch, 12-bit, general purpose inductance to digital converter

LDC1614—4-Ch, 28-bit, high-resolution Inductance to digital converter

Hall-effect latches & switches

TMAG5115—High-speed Hall-effect latch with low jitter (fast response)

DRV5013—High voltage (up to 38-V), high bandwidth (30-kHz) Hall effect latch

Digital processing

MCUs with advanced capabilities in secure wired and wireless connectivity, robust touch key solutions, power and standby management and cost effective motor control

Products

Inverting buffers & drivers

SN74AHC1G14—Single 2-V to 5.5-V inverter with Schmitt-Trigger inputs

SN74LVC3G14—3-ch, 1.65-V to 5.5-V inverters with Schmitt-Trigger inputs

CD4049UB—6-ch, 3-V to 18-V inverters

SN74LVC1G14—Single 1.65-V to 5.5-V inverter with Schmitt-Trigger inputs

Fixed-direction voltage translators

SN74LV1T34—Single Power Supply BUFFER Logic Level Shifter (no enable)

AND gates

SN74AHCT1G08—1-ch 2-input 4.5-V to 5.5-V AND gate with TTL-compatible CMOS inputs

Noninverting buffers & drivers

SN74LVC1G07—Single 1.65-V to 5.5-V buffer with open-drain outputs

SN74LVC126A—4-ch, 1.65-V to 3.6-V buffers with 3-state outputs

Direction-controlled voltage translators

TXV0108-Q1—Automotive, dual-supply direction-controlled eight-channel voltage translator

Current & voltage sense

Advanced current sense solutions (isolated & non-isolated) for a wide range of motor control applications.

Products

Series voltage references

REF35—650-nA quiescent current, 12-ppm/°C drift, ultra-low-power precision voltage reference

REF70—Ultra-high-precision voltage reference with low noise and low drift

REF2025—8-ppm/°C drift, low-power, dual-output Vref & Vref/2 voltage reference

REF20-Q1—Automotive low-drift, low-power, series voltage reference

Wired interface

Protected and robust connectivity solutions (isolated & non-isolated) that support common standards such as SPI, I2C, SMBUS, CAN, LIN, RS485, etc. and other proprietary protocols.

Products

Noninverting buffers & drivers

SN74LVC1G07—Single 1.65-V to 5.5-V buffer with open-drain outputs

SN74LVC126A—4-ch, 1.65-V to 3.6-V buffers with 3-state outputs

Direction-controlled voltage translators

TXV0108-Q1—Automotive, dual-supply direction-controlled eight-channel voltage translator

RS-232 transceivers

MAX3232E—3- to 5.5-V dual channel 250kbps RS-232 line driver/receiver with +/-15-kV IEC-ESD protection

TRS3122E—1.65- to 5.5-V 1Mbps RS-232 line driver/receiver with logic supply pin & +/-15-kV IEC-ESD protection

RS-485 & RS-422 transceivers

SN65HVD3082E—Half-duplex RS-485 transceiver

THVD1500—5-V RS-485 transceiver up to 500 kbps with ±8-kV IEC ESD protection

Signal input/output protection

Signal input/output protection provides protected and reliable communication between the MCU, multiple sensors and battery packs.

Products

ESD protection diodes

ESD351—1.8-pF, 3.3V, ±30-kV ESD protection diode with 6.5-V, 16-A TLP clamping in 0402 package for USB 2.0

TPD2E001—Dual 1.5-pF, 5.5-V, ±8-kV ESD protection diode with 1-nA max leakage & VCC pin for USB 2.0

TPD4E004—Quad 1.6-pF, 5.5-V, ±8-kV ESD protection diode with VCC pin for High Speed Interfaces

TVS diodes

TVS3300—33V flat-clamp surge protection device

TVS0500—5V flat-clamp surge protection device

TVS1400—14V flat-clamp surge protection device

Wireless interface

Robust, power efficient and highly secure solutions and certified modules that enable the rapid and easy addition of Wi-Fi and/or BLE connectivity to the Internet of Things (IoT), enabling extended field studies, asset tracking, configuration and interfacing.

Products

Sub-1 GHz wireless MCUs

CC1312R—SimpleLink™ 32-bit Arm Cortex-M4F Sub-1 GHz wireless MCU with 352kB Flash

Wi-Fi products

CC3200—SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi® wireless MCU with 2 TLS/SSL and 256kB RAM

Low-power 2.4-GHz products

CC2640—SimpleLink™ 32-bit Arm Cortex-M3 Bluetooth® Low Energy wireless MCU with 128kB Flash

CC2651R3—SimpleLink™ 32-bit Arm® Cortex®-M4 single-protocol 2.4-GHz wireless MCU with 352-kB flash

CC2630—SimpleLink™ 32-bit Arm Cortex-M3 Zigbee and 6LoWPAN wireless MCU with 128kB Flash

CC2650MODA—SimpleLink™ 32-bit Arm Cortex-M3 multiprotocol 2.4 GHz wireless module with 128kB Flash

Other wireless products

CC2620—SimpleLink™ 32-bit Arm Cortex-M3 Zigbee® RF4CE wireless MCU with 128kB Flash

Monitoring

Cost and board space effective solutions to assure proper operation and fault condition detection.

Products

Supervisor & reset ICs

TPS3897—Single-channel, ultra-small, adjustable supervisor with active-high, open-drain output

TPS3895—Single-channel, ultra-small, adjustable supervisor with active-high, push-pull output

TPS3839—Ultra-low power, supply voltage supervisor

Analog temperature sensors

LMT87—±2°C 2.7V to 5.5V analog output temperature sensor with -13.6 mV/°C gain

LMT84—1.5V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92

LMT86—2.2V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92

LMT87-Q1—Automotive ±2.7°C 2.7V to 5.5V analog output temperature sensor with -13.6 mV/°C gain

Temperature switches

TMP302-Q1—Automotive, Pin-Selectable Trip Point 1.4V-Capable Family of Temperature Switches

Digital temperature sensors

LMT01—0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface

Output user interface

Appealing, yet cost effective HMI solutions from indication LEDs to high-end touch screens & displays.

Products

RGB LED drivers

LP5018—18-channel I2C constant-current RGB LED driver

LP5813—Synchronous boost 4 x 3 matrix RGB LED driver with I2C and auto animation control

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

Speaker amps

TAS5822M—35-W, inductor-less, digital input, stereo, closed-loop Class-D amp with 96-kHz enhanced process

TAS5825M—38-W stereo, 65-W mono, 4.5- to 26-V, digital input Class-D Smart Audio Amplifier w/ 192kHz arch