Battery powered motion detector

Motion detection

A passive infrared (PIR) sensor is the primary means for detecting motion. A secondary PIR or microwave sensor can be used for false-trigger avoidance.

Products

Noninverting buffers & drivers

SN74LVC2G07—2-ch, 1.65-V to 5.5-V buffers with open-drain outputs

SN74LVC1G17—Single 1.65-V to 5.5-V buffer with Schmitt-Trigger inputs

SN74AHC125—4-ch, 2-V to 5.5-V buffers with 3-state outputs

Industrial mmWave radar sensors

IWRL6432—Single-chip low-power 57-GHz to 64-GHz industrial mmWave radar sensor

IWR6843—Single-chip 60-GHz to 64-GHz intelligent mmWave sensor integrating processing capability

IWR6843AOP—Single-chip 60-GHz to 64-GHz intelligent mmWave sensor with integrated antenna on package (AoP)

Precision ADCs

ADS7142—12-bit 140-kSPS 2-ch nanopower SAR ADC with 1.8-V operation in 1.5-mm x 2-mm QFN package

ADS1114—16-Bit 860SPS 1-Ch Delta-Sigma ADC With PGA, Oscillator, Vref, Comparator, and I2C

Shunt voltage references

LM4040—Fixed voltage, 45-µA, precision micropower shunt voltage reference

Non-isolated DC/DC power supply

Wireless motion (or occupancy) detectors are powered from batteries. Buck converters with high light-load efficiency may be considered for designs prioritizing maximum battery life. For designs operating from a low voltage battery, boost converters may be used instead. Linear regulators (LDOs) are a good option for simple designs. LDOs also enable added functionalities including EMI filtering.

Products

Boost converters (integrated switch)

TPS61023—3.7-A boost converter with 0.5-V ultra-low input voltage

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

TPS61022—8-A boost converter with 0.5-V ultra-low input voltage

TPS61020—Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10

Linear & low-dropout (LDO) regulators

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

TPS7A02—200mA, nanopower-IQ (25 nA), low-dropout (LDO) voltage regulator with enable

TPS7A20—300-mA ultra-low-noise low-IQ low-dropout (LDO) linear regulator with high PSRR

TPS782—150-mA, nano-IQ, low-dropout voltage regulator with enable from -40°C to +125°C

Buck converters (integrated switch)

TPS561201—4.5V to 17V Input, 1A Synchronous Step-Down Voltage Regulator in 6-pin SOT-23

TPS62903—3-V to 17-V, 3-A high-efficiency low-IQ buck converter in 1.5-mm × 2-mm QFN package

TPS629203—3-V to 17-V, 0.3-A, low-IQ, synchronous buck converter in SOT-583 package

TPS62902—3-V to 17-V, 2-A high-efficiency low-IQ buck converter in 1.5-mm × 2-mm QFN package

CSD17483F4—30-V, N channel NexFET™ power MOSFET, single LGA 1 mm x 0.6 mm, 260 mOhm, gate ESD protection

Ideal diode/ORing controllers

LM66100—1.5-V to 5.5-V, 1.5-A, 0.5-µA IQ ideal diode with integrated FET

Supervisor & reset ICs

TPS3840—Nanopower high-input voltage supervisor with manual reset and programmable-reset time delay

Load switches

TPS22915—5.5-V, 2-A, 39-mΩ load switch with output discharge

TPS22975—5.7-V, 6-A, 16-mΩ load switch with adj. rise time, optional output discharge, and thermal shutdown

TPS22917—5.5-V, 2-A, 80-mΩ , 10-nA leakage load switch adj. rise time and adj output discharge

P-channel MOSFETs

CSD75208W1015—-20-V, P channel NexFET™ power MOSFET, dual Common Source WLP 1 mm x 1.5 mm, 108 mOhm, gate ESD prot

CSD75207W15—-20-V, P channel NexFET™ power MOSFET, dual Common Source WLP 1.5 mm x 1.5 mm, 27 mOhm, gate ESD pro

Shunt voltage references

LM4040—Fixed voltage, 45-µA, precision micropower shunt voltage reference

Analog switches & muxes

TMUX4827—+/-12-V beyond the supply, 2:1 (SPDT) 2-channel switch with 1.8-V compatible logic

TMUX6212—36-V low RON, 1:1, four-channel, multiplexer with 1.8-V logic control

TS5A23157—5-V, 2:1 (SPDT), 2-channel analog switch

TS5A3160—1-Ω on-state resistance, 5-V, 2:1 (SPDT), analog switch (6-pin SOT-23, SC70 packages)

Real-time clocks (RTCs) & timers

TPL5100—Nano-powered programmable timer with power gating functionality and MOS driver

TPL5110—Nano-powered system timer with MOS driver and manual MOSFET power ON

TPL5111—Ultra low power system timer (35 nA) for power gating in duty cycled applications

Energy storage

A battery fuel gauge device can monitor the battery voltage.

Products

Battery charger ICs

BQ25638—I²C controlled, 1-cell 5-A maximum 18-V input buck charger with NVDC power path and USB OTG output

BQ25505—Ultra low power harvester power management IC with boost charger, and autonomous power multiplexor

Digital processing

The motion sensor can use a dedicated microcontroller or a single system-on-chip solution which combines the microcontroller and radio on a single device.

Products

Wi-Fi products

CC3301—SimpleLink™ Wi-Fi 6 and Bluetooth® Low Energy companion IC

Sub-1 GHz wireless MCUs

CC1314R10—SimpleLink™ Arm® Cortex®-M33 Sub-1 GHz wireless MCU with 1-MB flash and up to 296 kB of SRAM

CC1352P—SimpleLink™ Arm Cortex-M4F multiprotocol Sub-1 GHz & 2.4 GHz wireless MCU integrated power amplifier

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

CC1352R—SimpleLink™ 32-bit Arm Cortex-M4F multiprotocol Sub-1 GHz & 2.4 GHz wireless MCU with 352kB Flash

Sub-1 GHz transceivers

CC1101—Low-power Sub-1 GHz wireless transceiver

Other wireless products

CC2500—Low Cost, Low-Power 2.4 GHz RF Transceiver Designed for Low-Power Wireless Apps in the 2.4 GHz ISM B

CC2530-RF4CE—Zigbee, IEEE 802.15.4 and RF4CE wireless MCU with 256kB Flash and 8kB RAM

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

I2C general-purpose I/Os (GPIOs)

TCA9534A—8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, & config registers

TCA9539—16-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers

Auto-direction voltage translators

TXS0108E—8-bit bidirectional voltage-level shifter for open-drain and push-pull application

Fixed-direction voltage translators

SN74LV4T125—Single Power Supply Quadruple Buffer GATE w/ 3-State Output CMOS Logic Level Shifter

Noninverting buffers & drivers

SN74LVC2G07—2-ch, 1.65-V to 5.5-V buffers with open-drain outputs

SN74LVC1G17—Single 1.65-V to 5.5-V buffer with Schmitt-Trigger inputs

SN74AHC125—4-ch, 2-V to 5.5-V buffers with 3-state outputs

Direction-controlled voltage translators

SN74AXC4T245—4-bit dual-supply bus transceiver

Supervisor & reset ICs

TPS3840—Nanopower high-input voltage supervisor with manual reset and programmable-reset time delay

Shunt voltage references

LM4040—Fixed voltage, 45-µA, precision micropower shunt voltage reference

MSP430 microcontrollers

MSP430F2274—16 MHz MCU with 32KB Flash, 1KB SRAM, 10-bit ADC, 2 OpAmp, I2C/SPI/UART

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

MSP430FR2433—16 MHz MCU with 16KB FRAM, 4KB SRAM, 10-bit ADC, UART/SPI/I2C, timer

Self-diagnostics/monitoring

A voltage supervisor can be used to keep the microcontroller in reset until valid voltage levels are reached.

Products

Supervisor & reset ICs

TPS3840—Nanopower high-input voltage supervisor with manual reset and programmable-reset time delay

Wireless interface

Adding a wireless interface to the design allows motion or occupancy information to be transmitted to a central location.

Products

Wi-Fi products

CC3301—SimpleLink™ Wi-Fi 6 and Bluetooth® Low Energy companion IC

Sub-1 GHz wireless MCUs

CC1314R10—SimpleLink™ Arm® Cortex®-M33 Sub-1 GHz wireless MCU with 1-MB flash and up to 296 kB of SRAM

CC1352P—SimpleLink™ Arm Cortex-M4F multiprotocol Sub-1 GHz & 2.4 GHz wireless MCU integrated power amplifier

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

CC1352R—SimpleLink™ 32-bit Arm Cortex-M4F multiprotocol Sub-1 GHz & 2.4 GHz wireless MCU with 352kB Flash

Sub-1 GHz transceivers

CC1101—Low-power Sub-1 GHz wireless transceiver

Other wireless products

CC2500—Low Cost, Low-Power 2.4 GHz RF Transceiver Designed for Low-Power Wireless Apps in the 2.4 GHz ISM B

CC2530-RF4CE—Zigbee, IEEE 802.15.4 and RF4CE wireless MCU with 256kB Flash and 8kB RAM

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

Low-power 2.4-GHz products

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

CC2642R—SimpleLink™ 32-bit Arm Cortex-M4F Bluetooth® Low Energy wireless MCU with 352kB Flash

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

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

Auto-direction voltage translators

TXS0108E—8-bit bidirectional voltage-level shifter for open-drain and push-pull application

Fixed-direction voltage translators

SN74LV4T125—Single Power Supply Quadruple Buffer GATE w/ 3-State Output CMOS Logic Level Shifter

Direction-controlled voltage translators

SN74AXC4T245—4-bit dual-supply bus transceiver

Output user interface

The motion sensor can be used to generate an audio alarm or turn on a high-powered LED.

Products

Illumination LED drivers

TPS92201—5-V, 1-A or 1.5-A high-efficiency synchronous buck LED driver

LM2759—1A switched capacitor flash LED driver with I2C compatible interface

RGB LED drivers

LP5810—4-channel RGBW LED driver with I2C and auto animation control

TLC59116—16-bit Fast-Mode Plus (FM+) I2C-Bus constant-current LED sink driver

TLC59283—16 channel constant current LED driver with pre-charge FET

Speaker amps

TPA6211A1—3.1-W, mono, analog input Class-AB audio amplifier

General-purpose op amps

TLV9101—Single, 16-V, 1.1-MHz, low-power operational amplifier

TLV9062—Dual, 5.5-V, 10-MHz operational amplifier

TLV9002—Dual, 5.5-V, 1-MHz, RRIO operational amplifier for cost-optimized applications

TLV9052—Dual, 5.5-V, 5-MHz, 15-V/μs slew rate, RRIO operational amplifier for cost-optimized