Low Noise Fixed Dropout ±2.5 to ±12VOUT 3A Power Supply Reference Design for Ultrasonic CW Pulse Generators

This reference design allows a digitally programmable power supply to power a continuous wave (CW) mode ultrasound transmitter circuit via a 24V bus. There are two adjustable outputs (±2.5 to ±12V) under user software control. These outputs provide positive and negative regulator outputs up to 2A with very low ripple and noise. By adding more regulators in parallel, the power supply can be scaled to provide higher output currents up to 3A. The power supply can also be synchronized to an external clock.

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15-Cell Li-Ion Battery Controller Analog Front-End Reference Design

The TIDA00255 reference design utilizes the bq76940 analog front end (AFE) IC. It can measure battery voltage, mold temperature or external thermistor voltage using a 14-bit ADC. Current is measured individually by a separate 16-bit coulomb counter. The design turns off the low-side power FET to stop discharging or charging based on selected hardware limits. A microcontroller not included in this design will be part of the battery controller to communicate with the AFE to set protection thresholds, enable the power FETs, provide fault recovery, and shut down the FETs during over/under temperature conditions. Battery controller designs may include additional features that are not part of this reference design, such as secondary overvoltage protection, measurement, and isolated communications to inform the system of battery status.

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Sub-1GHz and 2.4GHz Antenna Reference Designs

This antenna board reference design contains multiple low-cost antenna solutions for sub-1 GHz and 2.4 GHz short-range wireless systems.

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Acontis EtherCAT Master Protocol Stack Reference Design

The Acontis EC-Master EtherCAT Master stack is a highly portable software stack that can be used on a variety of embedded platforms. EC-Master supports high-performance TI Sitara MPUs and provides an advanced EtherCAT Master solution that customers can use to implement EtherCAT communication interface boards, EtherCAT-based PLCs or motion control applications. The EC-Master architecture is designed so that users do not need to plan additional tasks, so the full stack functionality is available even on platforms without an operating system (such as TI Starterware supported on AM335x). This architecture combined with high-speed Ethernet drivers allows users to implement EtherCAT master on the Sitara platform with very short cycle times of 100 microseconds or less.

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24V dual-channel brushless DC motor driver reference design for dishwasher water pumps

TIDA-00447 is a 24V, dual brushless DC (BLDC) motor drive reference design that can be used to drive circulating water pumps and drain pumps in dishwashers. The circulating water pump and drainage pump drive stages are designed for continuous operation of 100W and 30W respectively. The drain pump driver is based on a single-chip, low external component count three-phase motor driver with integrated power MOSFETs and provides a proprietary sensorless control scheme enabling continuous sine wave drive. In addition, it features an integrated buck/linear regulator that efficiently reduces the supply voltage to 5V or 3.3V to power internal and external circuitry. The circulating water pump is implemented using a discrete solution with MCU, external MOSFET driver with protection mechanism and current sensing function, and external power MOSFET. This architecture allows the flexibility to adjust drive power levels as needed. The MCU is programmed through the InstaSPIN-BLDC software, which enables sensorless trapezoidal control of the BLDC motor using an anti-EMF integration approach, and can also be used to configure and control the speed of the drainage pump stage. A separate UART interface allows the drive unit to communicate with the main user interface controller. This reference design has been fully tested with current and motor stop protection mechanisms operating at full load.

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CC2531 Zlight2 Reference Design

This reference design provides a complete set of color RGBW LED lights controlled by ZigBee Light Link. The light has four colors of LEDs (red, green, blue, white) and is powered via USB. These LEDs are controlled by a CC2531 device running the ZigBee Light Link software stack. In order to save space and cost, the circuit board is equipped with a half-wave dipole PCB antenna.

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400VDC input, 28V/9A output, compact high-efficiency CLL resonant converter reference design

PMP9750 is a CLL resonant converter reference design with an input voltage of 400VDC and an output voltage of 28V/9A. Unlike the LLC series of resonant converters, the CLL resonant converter used in the PMP9750 utilizes its output inductor to minimize the size of the resonant tank. With the resonant controller UCC25600 and bridge driver UCC27714, the PMP9750 achieves a peak efficiency of 95.7%.

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USB Type-C™ and Power Delivery MicroDock Reference Design for Video and Charging

The USB Type-C™ and Power Delivery (PD) MicroDock Evaluation Module (EVM) provides a complete USB Type-C dock reference solution including audio, USB data, power delivery and video. The EVM has a small 2-inch × 4-inch form factor and supports both sourcing and sinking power capabilities through the USB Type-C PD host port. Video output capabilities include DisplayPort and HDMI.

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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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Brushless DC motor with speed control

This advanced motor implements closed-loop speed control to maintain precise RPM across load torque profiles. The DRV5013 Hall-effect sensor senses the magnetic rotor position, and the DRV8308 controller determines when to drive the CSD88537ND FET that energizes the coil . Without the use of a microcontroller or firmware, the sinusoidal current minimizes noise and torque ripple, maximizing motor performance.

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Shunt-Based Isolated Current Sensing Module Reference Design with Delta-Sigma Modulator

This shunt-based, isolated current measurement unit enables high-precision current measurement without the use of current transformers (CTs). Isolation is achieved through the AMC1304 which integrates high voltage isolation and a Delta-Sigma modulator . This solution avoids the need to use CTs, which is highly valued by customers as it reduces board size, product weight, crosstalk and EMI in the system, and reduces mechanical requirements by replacing CTs with shunts. problems, potentially extending product life.

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Wireless ECG, SpO2, PTT and heart rate monitor reference design for medical and consumer wearable devices

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Ultra-mobile, ultra-low-power display reference design using DLP® technology

This reference design features TI's DLP2010 (.2 WVGA) DMD chipset and is designed to enable ultra-low power and ultra-mobile displays either embedded into systems (e.g. smartphones, tablets, etc.) or as a standalone add-on module application. This chipset is used in designs containing the DLP2010 (.2 WVGA) DMD, DPC3435 display control, and DLPA2005 PMIC/LED driver.

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12V to 24V, 27A Brushed DC Motor Reference Design

Brushed motors are a relatively popular motor design option due to their low price and simple control scheme. A brushed motor has a wound rotor and a permanent magnet stator. The motor is commutated via a conductive ring: this ring is connected to the rotor, which uses a brush to scrape against the commutator ring, thus commutation is achieved. Therefore, the direction of current flowing through the motor can change depending on the brush orientation and different commutation rings. Simple direction changes and speed control changes can be quickly and efficiently implemented on brushed DC motors using an H-bridge. An electronic driver is required to control the motor current in a brushed DC motor. The electronic drive circuit contains a power stage with a two-phase inverter (to meet the required power intensity), a microcontroller for implementing motor speed commands and fault handling, a current sensing function for motor start/stop protection, for control Gate drivers for two-phase inverters and power supplies for microcontrollers and other low-voltage devices.

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700W Automotive External Audio Amplifier Reference Design

The PMP11769 reference design is a comprehensive solution for 700W automotive audio amplifiers. This boost converter provides a 36.0V, 10.0A continuous/20.0A peak output from an input voltage of 9 to 16V. It contains two Class D amplifiers delivering 2 x 175W (loaded into 4 ohms, left and right channels) and 1 x 350W (loaded into 2 ohms, subwoofer) power.

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65W USB Type-C PD AC/DC adapter reference design with 30W/in3 power density and 94% efficiency

This fully tested, USB power delivery reference design is a high efficiency, high power density, AC/DC adapter solution with a wide input voltage range (85 - 265VAC) for laptop adapters and smartphone charger applications. It adopts active-clamp-flyback topology controlled by TI’s newest ACF controller UCC28780 as the mainly power supply stage. This design uses TPS25740B, TI’s PD source controller, to achieve a full PD 2.0 function. The design achieves a peak efficiency of 94% at a very high switching frequency. The design’s power density is increased to 30 W/in³, which is much higher than traditional solutions.

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Isolated shunt current measurement reference design with independent digital filter

This reference design utilizes an isolated modulator and independent digital filter to implement a Class 0.5 three-phase power measurement system with an isolated shunt sensor, eliminating the need for an integrated synchronization filter and allowing an optional host microcontroller (MCU). ) will be broader in scope. In this design, the current sensed by the isolated modulator and the phase voltage sensed by the host microcontroller are synchronized; more advanced metering algorithms are supported using the Simplelink™ ARM Cortex M4 host MCU. This design protects against magnetic tampering attacks by using current sensors and a power supply that does not use any transformers or other magnetic components. This subsystem design has been tested and includes hardware.

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Flexible Interface for Synchronous Coherent DAQ Using Multiple ADCs (PRU-ICSS) Reference Design

This reference design demonstrates an interface implementation to multiple high-voltage bipolar input, 8-channel, multiplexed input SAR ADCs (6) via a Sitara Arm processor using a Programmable Real-Time Unit (PRU- ICSS) expands the number of input channels. The ADCs can be configured so that the same channels can be sampled simultaneously across all ADCs. This design highlights the PRU-ICSS's ability to handle a data rate of 1536ksps (each sample = 16 bits) (640 samples sampled per line cycle). For a 50Hz period, this equates to 32ksps per channel between 6 ADCs simultaneously (640 samples/period*50Hz*6 ADC*8 channels = 1536ksps). In addition, a second PRU is used to post-process the data to achieve coherent sampling.

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Wireless IoT, Bluetooth® Low Energy, 4½-Digit, 100kHz True RMS Digital Multimeter

Now, through the Internet of Things (IoT) environment, many products have become "at your fingertips", including test equipment such as digital multimeters (DMMs). The TIDA-01012 reference design, implemented on Texas Instruments' SimpleLink™ ultra-low-power wireless microcontroller (MCU) platform, demonstrates a 4.5-digit, 100kHz connected true RMS digital multimeter , featuring Bluetooth Low Energy connectivity, NFC Bluetooth pairing® and auto-wake up with TI's CapTIvate™ technology. 

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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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