Ultrasonic sensor water meter front-end reference design

This reference design helps designers develop an ultrasonic water-metering subsystem using an integrated, ultrasonic sensing solution (USS) module, which provides superior metrology performance with low-power consumption and maximum integration. The design is based on the 256KB MSP430FR6047 microcontroller (MCU), with integrated high-speed, ADC-based, signal acquisition and an integrated low energy accelerator (LEA) to optimize digital signal processing.

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Bidirectional non-isolated buck-boost converter

This design implements a bidirectional, non-isolated buck-boost power converter suitable for solar microconverters, hybrid electric vehicles (HEV), and battery charging applications.

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64-Button Capacitive Touch Panel Reference Design Using TI Microcontrollers with CapTIvate Technology

TIDM-CAPTIVATE-64-BUTTON TI reference design demonstrates an ultra-low power touch panel with 64 buttons that can be controlled from a single MSP microcontroller (MCU) with CapTIvate™ technology. The design uses mutual capacitance technology to ensure that all 64 buttons are tightly packed and can be controlled with just 16 MCU pins. This touch panel easily connects to the CAPTIVATE-FR2633 MCU target module included in the MSP-CAPT-FR2633 MCU development kit.

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MSP430FR2633 Microcontroller CapTIvate Electronic Lock and Keypad Reference Design

This reference design demonstrates an ultra-low power capacitive touch panel solution powered by a single MSP430™ microcontroller (MCU) with CapTIvate™ technology. The use of self- and mutual-capacitance technology enables multifunctional capacitive touch panels (buttons and proximity sensors) to be used in electronic locks and other applications with various human-machine interfaces. This TI reference design also shows how to extend battery life by cyclically running the MSP430 CPU and switch between low-power and run modes.

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MSP432™ MCU Reference Design Using MSP430 Capacitive Touch MCU, Haptics and LCD

This reference design demonstrates how to use the CapTIvate software library communication module to connect an MSP430 MCU with CapTIvate™ technology to an MSP432 MCU host microcontroller. This design integrates capacitive touch technology and human touch, using MSP432 MCU as the host to drive the QVGA LCD color screen.

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Noise-resistant capacitive touch HMI reference design

The Noise Tolerant Capacitive Touch HMI Design (TIDM-CAPTOUCHEMCREF) is a reference design for implementing a noise tolerant capacitive touch human machine interface (HMI). It integrates TI's MSP430FR2633 microcontroller (MCU) with high-performance CapTIvate™ touch technology and the TPS7A4533 linear regulator and UCC28910 flyback switch. This reference design demonstrates how a design that can pass challenging conducted RF immunity, electrical fast transient/burst immunity can be designed using a trinity design approach that includes hardware design techniques, CapTIvate technology peripheral functionality, and software signal technology. Hardware and software for system-level testing of electrostatic discharge immunity and electrostatic discharge immunity.

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Water meter implemented using FRAM microcontroller

This reference design uses the MSP430FR4133 FRAM-based MCU and is a remotely controlled, full-featured, battery-powered magnetic pulse water meter with wired and wireless automatic meter reading (AMR) capabilities. The instantaneous flow rate and total flow rate will be displayed on the LCD screen. The design operates in a low-power mode and reduces CPU workload, thereby helping to reduce overall power consumption.

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Evaluation Module (EM) Adapter

This BoosterPack package contains an "EM Adapter BoosterPack". The purpose of this EM adapter board is to provide an easy-to-use bridge between any TI MCU LaunchPad and various TI RF Evaluation Modules (EMs), such as the CCxxxx Low Power RF Evaluation Modules. No specific software is provided, so it is the user's responsibility to write the appropriate code to interface between the MCU and the RF device.

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Single-phase electronic electricity meter for single-chip measurements

This design uses the MSP430F6736 device to implement a highly integrated single-chip energy metering (meter) solution. Hardware and software design files are provided to calculate various parameters of single-phase energy metering such as RMS current and voltage, active and reactive power and charge, power factor and frequency.

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IoT node reference design using high-performance MCU and supporting WIFI function

System example showing how to build a WIFI node by integrating the TM4C1294 MCU and CC3100 network processor from the TM4C product family. This reference example demonstrates the function of remotely controlling the operating status of an MCU through the Internet.

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Ultrasonic TDC Flow Meter Reference Design

TIDM-ULTRASONIC-FLOW-TDC is a reference design for an ultrasonic flow meter (water, gas or heat meter) with LCD, using a time-to-digital converter and an ultra-low power MCU. The solution includes optimized leak detection, low power consumption and small form factor, which are important requirements for water, heat and gas meter applications. The design also includes a high-efficiency DC-DC converter for system power supply.

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Water meter reference design using LC sensor with Scan I/F

In battery-powered water meters, battery life over several years is key. One of the challenges is to continuously measure water flow information while using as little power as possible. The Scan I/F sensing peripheral integrated on the ultra-low power MSP430 microcontroller solves this problem. In the water meter design, the scan interface coupled to the LC rotation detection sensor continuously detects the rotation of the thruster while the rest of the microcontroller is in a low-power sleep mode. This reference design demonstrates how to use the scan interface to achieve ultra-low power consumption (versus the same detection method using external circuitry).

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Battery-Powered Wireless Sensor Monitoring Reference Design

This design pairs the ultra-low-power MSP430 MCU with a sub-1GHz RF transceiver to achieve a battery-powered wireless sensor monitoring solution. This design demonstrates access points and wireless nodes that can share sensor data wirelessly using the network protocol "SimpliciTI". A PC-side GUI is also provided to visually display wireless data transmitted/received between various nodes and access points.

Schematic PCB

Analog PWM generator, 5V 500kHz PWM output

This verification design utilizes a triangle wave generator and comparator to generate a pulse-width modulated (PWM) waveform with a duty cycle that is inversely proportional to the input voltage. The op amp and comparator generate a triangular waveform, which is then passed to one input of the comparator. By passing the input voltage to the other comparator inputs, a PWM waveform is generated. Negative feedback from the PWM waveform to the error amplifier is used to ensure high accuracy and linearity of the output. This design was constructed using the OPA2365 op amp, TLV3502 comparator, and REF3325 reference. Learn more about TI's high-precision designs

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Single-ended input to differential output conversion circuit reference design

This TI Precision Verified Design provides the principles, component selection, simulation, PCB design and measurement details for a single-ended input of a specific differential output circuit that converts a single-ended input from +0.1V to +2.4V ±2.3V differential output on a single +2.7V supply. The output range is specifically limited to maximize its linearity. This circuit consists of 2 amplifiers. An amplifier acts as a buffer, creating the voltage Vout+. The second amplifier inverts the input and increases the reference voltage to produce Vout-. Both Vout+ and Vout- range from 0.1V to 2.4V. The voltage difference Vdiff is the difference between Vout+ and Vout-. This will give a differential output voltage range of +2.3V.

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16-Bit, 400KSPS, 4-Channel Low-Distortion, Multiplexed Data Acquisition System for High-Voltage Inputs

This TI verified design implements a 16-bit differential 4-channel multiplexed data acquisition system at 400 KSPS throughput for high voltage differential inputs for ±20 V (40 Vpk-pk) industrial applications. The circuit is implemented with a 16-bit successive approximation register (SAR) analog-to-digital converter (ADC), a precision high-voltage signal conditioning front end, and a 4-channel differential multiplexer (MUX). This design details the use of the OPA192 and OPA140 to optimize a precision high-voltage front-end driver circuit to achieve the excellent dynamic performance of the ADS8864 .

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High-fidelity headphone amplifier reference design for current-output audio DAC

This TI precision verification design circuit converts the differential current output of an audio DAC into a single-ended voltage that can drive low-impedance headphones. This design achieves the high-fidelity performance levels currently being promoted in cell phones and mobile audio players.

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Isolated shunt/voltage measurement reference design for automotive battery pack monitoring

This TI verified design provides principles, component selection, TINA-TI simulation, verification and measurement performance, Altium schematic, PCB layout for automotive battery pack monitoring applications. This design uses the automotive AEC-Q100 qualified 12-bit, 4-channel, 1Msps SAR ADC ADS7950-Q1 and isolated system hardware. This isolated input design with four-wire shunt resistors is ideal for such applications using high and low voltage automotive battery packs. It can be used to monitor battery pack current (from -5A to +5A) and extremely high voltages (up to 750V). TINA simulations on input and reference drivers validate design solutions and component selections, while measured results prove the performance of precision designs.

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Linear LED driver reference design for automotive lighting applications

TIDA-00679 TI reference design demonstrates a solution for automotive LED taillight applications (tail/brake lights, turn signals, reverse lights). This reference design uses the TPS92630 linear LED driver, which is powered directly from the car battery through a smart battery reverse diode. The design offers the potential for cost savings and efficiency through low power dissipation and improved system thermal performance. The reference design also includes CISPR25 testing, pulse testing (per ISO 7637-2), and EMI/EMC radiated and conducted emissions testing. See TIDA-00677 for a similar design using the TPS92630-Q1 driven by a buck converter . See TIDA-00678 for a similar design driven by a boost converter .

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Automotive high-side dimming rear light reference design

This TI reference design is for an automotive high-side dimmable taillight that uses a BCM to provide the taillight. In this TI reference design, the high-side driver TPS1H100-Q1 is used to output PWM power with different duty cycles. Linear LED drivers TPS92630-Q1 and TPS92638-Q1 are used to drive LEDs with constant current.

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