News

GTSM20N065 Bench Test: Comprehensive Breakdown of Conduction and Switching Losses for a 650V/20A MOSFET

GTSM20N065 Bench Test: Comprehensive Breakdown of Conduction and Switching Losses for a 650V/20A MOSFET

在650V高压功率MOSFET选型中，工程师常陷入"看RDS(on)就下单"的误区——实测数据显示，某主流650V/20A器件在100kHz开关频率下，开关损耗占总损耗比例高达47%，远超预期。GTSM20N065作为该电压电流等级的代表性器件，其实际导通损耗与开关损耗表现究竟如何？本文基于实测数据，从静态参数到动态波形，完整拆解其损耗构成与优化边界。器件定位与测试框架搭建 GTSM20N065定位于650V/20A功率MOSFET细分市场，典型应用于服务器电源、光伏逆变器及工业变频器等领域。选型初期需建立完整的参数评估体系，而非单一依赖导通电阻指标。 GTSM20N065核心参数速览与竞品对标该器件关键静态参数包括：VDS=650V、ID=20A（25℃）、RDS(on)典型值0.18Ω（25℃）。与同级竞品对比时，需关注三个维度：室温导通电阻、栅极电荷总量Qg以及输出电容Coss。实测表明，GTSM20N065的Qg为32nC，处于行业中位水平，这直接影响高频开关损耗表现。参数GTSM20N065竞品A竞品B VDS (V)650650600 ID @25℃ (A)202218 RDS(on) @25℃ (Ω)0.180.160.22 Qg (nC)322838 Eon @400V/10A (μJ)455238 双脉冲测试平台设计与校准要点开关损耗测量依赖双脉冲测试法。…

View Details

8 October 2026

5

How to Choose the Alternative Power Module for LTM4644?

How to Choose the Alternative Power Module for LTM4644?

How to Choose the Alternative Power Module for LTM4644? When your design uses Analog Devices / Linear Technology’s LTM4644 quad-output µModule regulator, finding a reliable, pin-to-pin alternative can feel daunting. Whether you are facing supply chain uncertainty, cost pressure, or simply want a second source, this guide walks you through the selection criteria—technically, practically, and commercially—so you can make a confident decision. Why Look for an LTM4644 Alternative? The LTM4644 is a popular 4A/output, 4-channel step-down µModule regulator. However, engineers increasingly seek altern…

View Details

10 June 2026

29

Analyzing the Key Features of the STM32F407VGT6 Microcontroller

Analyzing the Key Features of the STM32F407VGT6 Microcontroller

The STM32F407VGT6, a high-performance microcontroller introduced by STMicroelectronics, is based on the ARM Cortex-M4 core and widely utilized in various high-performance embedded systems. Its robust functionalities and flexible design make it a significant choice for industrial control, robotics, audio processing, and other domains. Below, we delve into the primary features of the STM32F407VGT6. 1. Powerful Computing Performance The STM32F407VGT6's core is the ARM Cortex-M4, renowned for its efficient processing capabilities and low power consumption. With a maximum clock frequency of 168MHz,…

View Details

17 December 2025

81

STM32F030K6T6: A High-Performance Core Component for Embedded Systems

STM32F030K6T6: A High-Performance Core Component for Embedded Systems

In today's digital era, microcontrollers serve as the heart of embedded systems, playing a pivotal role across various sectors. They are extensively utilized in medical devices, automotive electronics, industrial control, consumer electronics, and communication equipment. Among these microcontrollers, STM32F030K6T6 stands out due to its high performance, low power consumption, and abundant peripheral interfaces. This article delves into the technical features, application fields, and the significance of STM32F030K6T6 in modern electronic systems. STM32F030K6T6, a microcontroller from STMicroel…

View Details

17 December 2025

81

Comprehensive and precise monitoring! Dajiqun releases three channel, high-precision digital voltage and current monitoring chip TPA6290

Comprehensive and precise monitoring! Dajiqun releases three channel, high-precision digital voltage and current monitoring chip TPA6290

TPA6290 product advantages 1.Wide voltage monitoring range TPA6290 supports a wide common mode voltage range of 0V~36V, which can adapt to various power environments and ensure stable operation of the device under various conditions. 2. Flexible current and voltage measurement TPA6290 is capable of monitoring three independent current and voltage channels, making it suitable for comprehensive monitoring of multi power systems, meeting complex application requirements, and reducing system costs. Support programmable conversion time and average calculation mode, which can be flexibly configured …

View Details

17 December 2025

77

Battery conversion and precise medical ECG detection! Dajiqun launches amplifier TPA1287

Battery conversion and precise medical ECG detection! Dajiqun launches amplifier TPA1287

Advantages of TPA1287 product 1.High common mode rejection ratio In the current detection application of battery formation, fluctuations in battery voltage often affect the sampling results, resulting in deviations in the final collected voltage and current data. The high common mode rejection ratio of the input stage of the signal amplifier can effectively reduce the interference caused by the common mode noise of the previous stage. The common mode rejection ratio of TPA1287 is 120dB (@ G=100, Min), 138dB (@ G=100, Typ), and it supports a wide voltage supply from 4V to 36V, expanding the com…

View Details

17 December 2025

81

Dajiqun at the 2025 Shanghai Auto Show, Showcasing Multiple Key "Chip" Trends in Automotive Electronics Upgrades

Dajiqun at the 2025 Shanghai Auto Show, Showcasing Multiple Key "Chip" Trends in Automotive Electronics Upgrades

Dajiqun Electric Multi Field Automotive Application Solution Technology Empowerment, Innovation Leading 1.Multi category products empower 48V architecture upgrade The 48V system is becoming a consensus in the field of electric vehicles, gradually extending from hybrid models to pure electric platforms, and moving from functional supplementation to system level reconstruction. Its technological breakthroughs and cost optimization will deeply reshape the industry chain ecology. In the 48V architecture system, Ruiyang Semiconductor has mass-produced or sample ready interface products, current det…

View Details

17 December 2025

85