-48V Telecom Current/Voltage/Power Sensing with Isolation

This proven design accurately measures current, voltage, and power on a bus carrying -48V and provides the data using an I²C-compatible interface. This design is suitable for telecom applications since most common telecom equipment is powered by this negative supply voltage. It uses INA226 and ISO1541. The INA226 is a current shunt/power monitor with an I²C compatible interface. The device will accurately process these measurements and convert the negative voltage to a ground reference signal using ISO1541. The ISO1541 is a low power bidirectional I²C compatible isolator.

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Envelope Tracking Power Supply Reference Design for Audio Amplifier Using TPS61088

This reference design uses the TPS61088 to provide an envelope tracking power supply circuit for an audio power amplifier (PA). By adding the audio envelope signal to the FB pin, the output voltage of the TPS61088 can be varied according to the envelope of the audio signal. Therefore TPS61088 can provide dynamically changing power supply voltage to the PA. As a result, the PA maintains high efficiency over the entire output power range.

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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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4.4V to 30V, 15A, high-performance brushless DC propeller controller reference design

The TIDA-00643 reference design is a 4.4 to 30 V brushless DC motor controller for high power propeller, fan and pump applications. It uses Texas Instruments' DRV8305 brushless DC motor gate driver, CSD17573Q5B 30V NexFET power MOSFET, TPD4E05U06 TVS protection integrated circuit, C2000 motor control MCU, and LMR16006 3.3 V buck converter. It uses InstaSPINTM-FOC for sensorless magnetic field positioning control and controls motor speed via an external reference signal from a central controller. The design aims to create an efficient and high-power BLDC motor system.

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6-Cell EV/HEV Integrated Battery Monitor and Protector Reference Design with Passive Balancing

The TIDA-00821 reference design is a stackable monitor and protector for use in large lithium-ion batteries that provides monitoring, balancing and communication functions. Each bq76PL536A-Q1 EVM can manage 3 to 6 cells in Li-ion battery applications. Up to 32 bq76PL536A-Q1 EVM modules can be stacked. The system provides fast cell balancing, diagnostic capabilities, and module-to-controller communication. In addition, an independent
protection circuit is integrated.

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Category 8 High Power PoE Isolated Active Clamp Forward Converter (24V/3A) Reference Design

This reference design is a high power PoE Powered Device (PD) plus active clamp forward converter.  The TPS2373 high power PD controller EVM (TPS2373-4EVM-758) provides all functions necessary to implement an IEEE802.3bt-ready PD.  This is paired up with an active clamp forward converter utilizing the UCC2897A controller.  The high efficiency 24V/3A output using synchronous rectifiers is ideally suited for high power PoE applications such as  IP security cameras and LED lighting applications.

In need of an IEEE802.3bt-ready PSE controller? Check out the TPS23881.

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Single PWM input brushless DC motor control TI reference design

This design is a sensored three-phase brushless DC motor controller that uses a single PWM input to control speed and three active-high Hall sensors to detect rotor position. The DRV8305's integrated communication table simplifies the microcontroller firmware required for correct commutation. The DRV8305 automatically handles dead time insertion and gate drive current control, both of which are adjustable through the driver SPI interface.

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Electric Toothbrush Controller Reference Design

This TI reference design combines a Texas Instruments (TI) low-voltage H-bridge motor driver with an integrated LDO voltage regulator and an ultra-low-power microcontroller (MCU) to demonstrate a comprehensive implementation of a battery-powered electric toothbrush. .

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Proximity switch reference design using CapTIvate teaching button

This reference design demonstrates how to implement a capacitive touch button, commonly used as a setting button in a proximity switch, in an ultra-small 3.5mm wide PCB based on TI's CapTIvate™ technology. When combined with the highly integrated IO-Link PHY, flexible PNP or NPN outputs are possible. The SIO stage provides reverse polarity, ESD, EFT and surge protection, making the design compliant with IEC 61000-4 standards. Hall sensors with analog output signals enable flexible use by teaching the distance to magnetic objects via a capacitive teach button. This analog signal is captured by the MCU's integrated ADC.

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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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Ultra-small 1W, 12V-36V isolated power supply reference design for analog programmable logic controller modules

Analog input and output modules are standard components of programmable logic controllers (PLCs) or distributed control systems (DCS). In these modules, the increasing number of channels per module and the thinner and thinner modules present design challenges for isolated power supplies. All designers facing these challenges will benefit from the TIDA-00237 as its total design size is less than 2.54x2.54mm and its height is less than 5mm. It uses a flyback approach, which means no optocoupler feedback is required, and has a wide input voltage range of 12V-36V. This design provides +/-15V and 5V isolated low-noise outputs, making it ideal for driving data converters or analog front ends.

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Qi (WPC)-compliant wireless charger for low-power wearable applications

TI's TIDA-00318 is designed for low-power wearable devices, including a Qi-compliant wireless receiver (bq51003) and an ultra-low current single-cell Li-ion linear battery charger (bq25100). Its features are: ultra-small size (5x15mm2), supports charging current between 10mA~250mA and a minimum terminal current of 1mA.
The current design is suitable for 135mA charging current.

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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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24V, 480W (nominal), 720W (peak), reliable AC/DC industrial power supply reference design with energy efficiency higher than 93.5%

The TIDA-01494 reference design is a compact, high-efficiency, 24V DC, 480W nominal, 720W peak output reference design for industrial AC/DC power supplies. The circuit includes a front-end continuous conduction mode (CCM) power factor correction (PFC) circuit, followed by a powerful LLC stage with synchronous rectification. The design ensures an efficiency greater than 93.5% over a wide load range, allowing the system to operate without forced cooling. The UCC256301-based LLC stage utilizes the ZCS avoidance feature in the UC256301 to achieve peak output power, minimizing the PFC bulk capacitor to meet holdup requirements while enabling the system to handle short circuit and overcurrent conditions. The UCC24612-2-based synchronous rectifier helps minimize losses in the output rectifier, while its advanced proportional gate driver and dead-time optimization help avoid breakdown and minimize losses.

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Xilinx® Zynq®7000 Series (XC7Z015) Power Solution (5W) - Reference Design

This PMP10600.1 reference design provides all the power rails required to power the Xilinx® Zynq® 7000 Series (XC7Z015) FPGA. This design uses multiple LMZ3 series modules, multiple LDOs, and a DDR termination regulator. It also has an LM3880 for power-up and power-down sequencing. This design uses a 12V input voltage.

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Automotive power supply reference design for low-power TDA3x-based systems

This solution is designed to create a size-optimized integrated power design for ADAS applications using the TDA3x SoC (no automotive battery input required). By targeting only applications that require lower processing performance, we can select smaller devices and components than systems with higher performance processors.

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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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Reference design for automotive USB charger with line drop compensation

The design converts an 8V-42V DC input into a 5.1V output and is protected by the TPS2546-Q1 programmable current protection switch. Its handshake protocol enables fast charging of smartphones/tablets/handheld devices. By detecting the load current and adjusting the DC/DC output voltage, this design can implement linear USB cable differential compensation function to keep the USB port voltage within a limited range. This design is suitable for devices such as vehicle-mounted hosts and remote USB hubs.

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Human Machine Interface (HMI) Reference Design for EV Charging Infrastructure

This processor-based reference design helps speed time to market and helps customers design cost-effective human-machine interface (HMI) solutions for electric vehicle (EV) charging infrastructure or EV power supply equipment (EVSE). This reference design demonstrates the two-dimensional (2D) Qt graphical user interface (GUI) common to EVSE HMI, as well as TI processor capabilities for software-rendered graphics. The AM335x processors provide scalability and a variety of processing speeds and compatible software to meet the needs of low-end to high-end applications. They also provide ample connectivity, including key peripherals required for EVSE HMI such as universal asynchronous receiver/transmitter (UART) and CAN).

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14-Channel Active Cell Balancing Battery Management Reference Design

Active Balance chipset used in large lithium-ion batteries provides monitoring, balancing and communication functions. With precise and reliable active balancing, Active Balance BMS enables bidirectional power transfer within each cell. Each EM1401EVM can manage 6 to 14 cells (up to 60V) in Li-ion battery applications. EM1401EVM modules can be stacked up to 1300V. The system provides fast cell balancing, diagnostic functions and modules for controller communication. An independent protection circuit is also provided.

Schematic PCB