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Texas Instruments brings you the latest in High Voltage

1st November 2024

Paige West

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Here, you’ll find a selection of the latest news, products, and articles from Texas Instruments focused on High Voltage.

650V 170mΩ GaN FET with integrated driver

The LMG3624 is a 650V 170mΩ GaN power FET intended for switch-mode power-supply applications. The LMG3624 simplifies design and reduces component count by integrating the GaN FET and gate driver in a 8mm by 5.3mm QFN package.

The benefits of low-power GaN in common AC/DC power topologies

Consumers want portable, fast and efficient chargers for the various electronic devices they carry with them daily. With a majority of electronics moving to USB Type-C chargers, demand for compact power adapters that can charge all of their devices is increasing rapidly.

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Maximise System Efficiency With Integrated Current Sensing From TI GaN

Switching converters generally requires some form of system-level current sensing for control, protection, or both. Many methods and devices exist to accurately measure and translate current to some voltage processed by a digital or analog controller. Most designers opt for shunt resistors in low-to-mid power converters placed in series with switching devices due to cost savings and design simplicity.

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65-W GaN-based USB PD3.0 USB-C adapter reference design

This reference design is a 65-W USB PD3.0 adapter targeted for many charging applications including mobile phones, laptops and tablets. The design achieves high efficiency and power density with the use of LMG3624 integrated GaN FET with current sense emulation. High efficiency is enabled with the quasi-resonant flyback, which provides a balance between simplicity and low switching losses.

PSpice for TI design and simulation tool

PSpice for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence. Available at no cost, PSpice for TI includes one of the largest model libraries in the industry, spanning our analog and power portfolio, as well as select analog behavioural models.

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650V 120mΩ GaN FET with integrated driver

The LMG3622 is a 650-V 120-mΩ GaN power FET intended for switch-mode power-supply applications. The LMG3622 simplifies design and reduces component count by integrating the GaN FET and gate driver in a 8-mm by 5.3-mm QFN package.

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LMG3622 evaluation module for 65-W quasi-resonant flyback converter

LMG3622EVM-082 demonstrates high efficiency and high density for a 65-W USB Type-C Power Delivery (PD) off-line adapter using the LMG3622 integrated GaN FET with current sense emulation. The input supports a universal 90 VAC to 265 VAC and the single output can be set to 5 V, 9 V and 15 V all at 3-A max and 20 V at 3.25-A max, which can be adjusted with the USB PD interface controller.

140-W GaN-based USB PD3.1 USB-C adapter reference design

This reference design is a gallium nitride (GaN) based, 140W AC-DC power with high efficiency and power density. It supports wide input (90VAC to 264VAC) and output (5V to 28V) voltages. It is designed for the application, such as the adaptor design for USB PD3.1 and the charger for power tools.

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650V 270mΩ GaN FET with integrated driver

The LMG3626 is a 650-V 270-mΩ GaN power FET intended for switch-mode power-supply applications. The LMG3626 simplifies design and reduces component count by integrating the GaN FET and gate driver in a 8-mm by 5.3-mm QFN package.

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LMG3626 evaluation module for 65-W quasi-resonant flyback converter

The LMG3626EVM-074 evaluation module (EVM) demonstrates high-efficiency and high-density for a 65-W USB Type-C power delivery (PD) off-line adapter using the LMG3626 integrated GaN FET with current-sense emulation. The input supports a universal 90 Vac to 265 Vac and the single output can be set to 5 V, 9 V and 15 V all at 3-A maximum and 20 V at 3.25-A maximum, which can be adjusted with the USB PD interface controller.

DC input, transistor output, single-channel, opto-emulator

The ISOM811x devices are single-channel optocoupler-emulators with LED-emulator input and transistor output. The devices are pin-compatible and drop-in replacements for many traditional optocouplers, allowing enhancement to existing systems with no PCB redesign.

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ISOM8110

ISOM811x opto-emulators offer significant reliability and performance advantages compared to optocouplers, including high bandwidth, low turn-off delay, low power consumption, wider temperature ranges, and tight CTR and process controls resulting in small part-to-part skew. Since there is no aging effect or temperature variation to compensate for, the emulated LED input stage consumes less power than optocouplers.

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ISOM8110 evaluation module for single-channel opto-emulator

ISOM8110DFGEVM is an evaluation module used to evaluate ISOM8110, a single-channel opto-emulator with analog transistor output in a 4-pin DFG SOIC package. The EVM lets you evaluate device performance for fast development and analysis of an isolated system.

DC input, open-collector output, single-channel high-speed opto-emulator

The ISOM871x devices are single-channel optoemulators with diode-emulator inputs and digital outputs. The devices are pin-compatible and dropin replaceable for many traditional optocouplers, allowing enhancement to industry-standard packages with no PCB redesign. These devices can transmit data rates up to 25 Mbps and can output 3.3-V and 5-V signals with two logic-output options: CMOS compatible output (ISOM8710) and open-collector output (ISOM8711).

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LAUNCHXL-F28P55X

LAUNCHXL-F28P55X is a low-cost development board for TI C2000 real-time microcontrollers series of F28P55x devices. Ideal for initial evaluation and prototyping, it provides a standardized and easy to use platform to develop your next application. This extended version LaunchPad development kit offers extra pins for development and supports the connection of two BoosterPack plug-in modules. As part of the vast TI MCU LaunchPad ecosystem, it is also cross-compatible with a broad range of plug-in modules.

DC input, logic output, single-channel high-speed opto-emulator

ISOM871x opto-emulators offer significant reliability and performance advantages compared to optocouplers, including high common mode transient immunity (CMTI), low propagation delay, small pulse width distortion (PWD), low power consumption, wider temperature ranges, and tight process controls resulting in small part-to-part skew.

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Understanding Failure Modes in Isolators

Analysing how isolators fail under high voltage, high current stress fault conditions is important in order to determine if additional measures are required to prevent an electrical hazard.

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ISOM8711DFFR

The ISOM871x devices are single-channel optoemulators with diode-emulator inputs and digital outputs.

±1300V reinforced isolation, 80Arms 250kHz Hall-effect current sensor

The TMCS1123 is a galvanically isolated Hall-effect current sensor with industry leading isolation and accuracy. An output voltage proportional to the input current is provided with excellent linearity and low drift at all sensitivity options. Precision signal conditioning circuitry with built-in drift compensation is capable of less than 1.4% maximum sensitivity error over temperature and lifetime with no system level calibration, or less than 1% maximum sensitivity error including both lifetime and temperature drift with a one-time calibration at room temperature.

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Simplifying high-voltage sensing with Hall-effect current sensors

In electric vehicle (EV) charging and solar inverter systems, current sensors measure current flow by monitoring the voltage drop across a shunt resistor or the magnetic fields generated by current flowing through a conductor. These high-voltage systems use current flow information to control and monitor power conversion, charging and discharging.

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TMCS1123 evaluation module for isolated Hall-effect current sensing

The TMCS1123EVM evaluation module (EVM) is intended to facilitate rapid, convenient use of the TMCS1123, an isolated Hall-effect precision current sense monitor using an internal ratiometric reference. This EVM allows the user to push the maximum operating current through the Hall-input side while measuring the isolated output through a reinforced isolation barrier.

Isolated low delay high PWM rejection Hall current sense reference design

This reference design demonstrates an accurate low latency reinforced isolated bidirectional current sense system using the TMCS1123 precision Hall-effect current sensor for reliable phase current and DC-link current sensing with three phase inverters up to ±62A and less than 100ns over-current detection time. The overcurrent threshold is configurable up to 2.5-times the full-scale input current range.

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1.6kW, bidirectional micro inverter based on GaN reference design

This reference design shows a four-input bidirectional 1.6kW GaN-based microinverter with energy storage capability.

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7.2-kW, GaN-based single-phase string inverter

This reference design is a single phase string Inverter with two string inputs, each able to handle 10PV panels in series and one energy storage system port that can handle batteries stacks from 80V to 500V. The rated power from string inputs to battery storage systems is up to 7.2kW. The configurable AC/DC converter can handle up to 3.6kW into a single phase grid connection at 230V.

TMCS1123xEVM

This user’s guide describes the characteristics, operation, and use of the TMCS1123 evaluation module (EVM). This EVM is designed to evaluate the performance of the TMCS1123 voltage output isolated Hall-effect current sense amplifiers in a variety of configurations. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the TMCS1123xEVM. This document includes a schematic, reference printed circuit board (PCB) layouts, and a complete bill of materials (BOM).

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Three-channel, simultaneously-sampling, 16-bit, isolated delta-sigma ADC

The AMC130M03 is a precision three-channel, data- and power-isolated, simultaneous-sampling, 16-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC). The AMC130M03 offers wide dynamic range, low power, and energy-measurement-specific features, making the device designed for energy metering and power metrology applications. The ADC inputs can be directly interfaced to a resistor-divider network or a shunt-current sensor because of the device high input impedance.

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AMC131M03 evaluation module

The AMC131M03 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the AMC131M03 using a precision host interface (PHI) controller board. The AMC131M03 is a precision three-channel, isolated, simultaneously-sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC).

How real-time control technologies enable reliable, scalable high-voltage designs

The demands of high-voltage systems have evolved significantly, driven by the need for increased power levels and the growing complexity of modern power systems. Meeting these demands effectively necessitates a real time MCU or digital power controller capable of controlling advanced power topologies optimized for nuanced specifications and various power requirements simultaneously. This article will discuss a few benefits of digital power control in high-voltage applications and demonstrate how it facilitates the safe and efficient operation of advanced power systems.