Texas Instruments brings you the latest in High Voltage
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 650-V 170-mΩ 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 an 8 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.
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.
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.
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.
LMG3622EVM-082
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. High-frequency operation up to 200-kHz nominal enables small solution size while the multi-mode operation maintains high efficiency. Synchronous rectification is used on the output to increase efficiency.
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.
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.
LMG3626EVM-074
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. High frequency operation up to 200-kHz nominal enables small solution size while the multi-mode operation maintains high efficiency. Synchronous rectification is used on the output to increase efficiency.
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.
Opto-emulators explained: Why you should upgrade your optocoupler technology
Optocouplers, also known as photocouplers, opto-isolators and optical isolators, have long been an option for designers seeking galvanic isolation for their system signals. Around since the 1970s, these semiconductor devices have played an important role in providing safety isolation for industrial and automotive end equipment. However, despite significant advancements, there appears to be a limitation to their progress in electrical characteristics, high-voltage reliability, and integration capabilities, prompting designers to explore alternatives.
ISOM8110 evaluation module
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.
Stackable battery management unit reference design
This is a full cell-temperature sensing and high cell voltage accuracy Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery pack (32s) reference design. The design monitors each cell voltage, cell temperature and protects the battery pack to secure safe use. This design uses onboard and offboard daisy-chain communication interface for a cost-effective stacked bus connection. These features make this reference design applicable for high-capacity battery pack applications.
ISOM8711
The ISOM871x devices are single-channel optoemulators with diode-emulator inputs and digital outputs. The devices are pin-compatible and drop in 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).
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.
TMCS1123
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.
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.
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. The fixture layout is not intended as a model for the target circuit, nor is it laid out for electromagnetic (EMI) testing. The TMCS1123EVM consists of a single printed circuit board (PCB), breakable into five individual pieces, allowing the user to test all sensitivity variations of a single quiescent point (A = 0.5Vs, B = 0.33Vs or C = 0.1Vs).
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. A small formfactor 12-bit A/D converter with high-speed SPI or a delta-sigma modulator with up to 21 MHz clock offer a high noise immunity 3.3V I/O digital interface. The interface connects to host processors like a C2000 or Sitara MCU for easy performance evaluation of in-package hall-sensors with different A/D conversion technologies.
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.
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.
User's Guide: 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).
AMC130M03
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.
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).
Product Spotlight
APV1111GVY
Panasonic
Panasonic PhotoMOS® Photovoltaic MOSFET High-Power Drivers
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| Cost: | $3.95 |
