With the addition of SiC and IGBT models, more than 3,500 LTspice® models are available on the ROHM official website

2023-10-16

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ROHM (headquartered in Kyoto, Japan), a world-renowned semiconductor manufacturer, has expanded its lineup of SPICE models*2 that support the circuit simulation tool*1 LTspice®. LTspice® features circuit diagram capture and waveform viewer capabilities to confirm and verify in advance that a circuit is working as designed. ROHM has previously provided LTspice models for bipolar transistors, diodes, and MOSFET*3, and this time it has added LTspice models for SiC power components and IGBT*4.

To date, ROHM has provided more than 3,500 LTspice® models of discrete products, which can be downloaded from each product page. At present, the LTspice® model coverage rate corresponding to the products released on ROHM's official website has exceeded 80%, which helps customers improve design convenience by using circuit simulation tools embedded with discrete products such as power components.

With the addition of SiC and IGBT models, more than 3,500 LTspice® models are available on the ROHM official website

In addition, in addition to the product page, ROHM's official website will also open a "Design Model" page where all simulation models can be browsed from October 2023, where various models can be easily downloaded. In addition, guide documents for adding libraries and creating symbols (circuit diagram symbols) are provided to help customers create circuits and perform simulations smoothly.

In the future, ROHM will continue to expand the model lineup that supports various simulation tools and help solve customers' problems in the circuit design process by providing online tools and resources that meet customer needs (such as the already released "ROHM Solution Simulator* 5") .

With the addition of SiC and IGBT models, more than 3,500 LTspice® models are available on the ROHM official website

In recent years, there have been more and more opportunities to use circuit simulation in circuit design, and the available tools are also diverse. Among them, LTspice® is one of the representative circuit simulation tools, and its users include a wide range of groups from students to corporate engineers. In order to meet the needs of many users, ROHM has further expanded its lineup of discrete product models supporting LTspice®.

・Design models In addition to LTspice® models, ROHM also releases various simulation models that support different usage tool environments. https://www.rohm.com.cn/support/design-model

・How to use the LTspice® model

・How to use LTspice® model: Convergence speed improvement techniques

・LTspice® is a registered trademark of Analog Devices, Inc. When using the trademarks of other companies, please follow the usage regulations established by the rights holder.

*1) Circuit simulation tool

A tool that does not require the actual preparation of electronic components but only uses software to design and verify electronic circuits.

*2) SPICE model

Data used in electronic circuit simulation tools to express the operating characteristics of components using mathematical formulas. The format of the SPICE model corresponding to the simulation tool may vary depending on the format of the text file.

*3) MOSFET(Metal-Oxide-Semiconductor Field Effect Transistor)

Metal-oxide-semiconductor field effect transistor is the most commonly used structure in FET.

*4) IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor

) A power transistor that combines the high-speed switching characteristics of a MOSFET with the low conduction loss characteristics of a bipolar transistor.

*5) ROHM Solution Simulator

A free circuit simulation tool running on the ROHM official website. From component selection and single component verification to system-level operation verification, everything can be achieved through this simulation tool.

About ROHM Semiconductor

ROHM was established in Kyoto, Japan, in 1958. ROHM designs and manufactures semiconductors, integrated circuits and other electronic components. These components find a home in the dynamic and ever-growing wireless, computer, automotive and consumer electronics markets. Some of the most innovative equipment and devices use ROHM products.

ROHM's presence in the North American market continues to expand with a logistic headquarters in San Diego, California, a design center in San Jose, California, a QA Center in Novi, Michigan, a sales office in Guadalajara, Mexico and a sales network that covers marketing, sales, and engineering support for the North and South American clients from Canada to Brazil. In addition to a direct sales force, ROHM enjoys the collaboration of several sales-representative organizations and industry leading electronics distributors.

For more than forty years, ROHM has stayed focused on the fundamental philosophy of customization. The company has worked closely with equipment manufacturers to develop next generation equipment and use the technology acquired through these efforts to propose system solutions to its customers and continually provide them with high added values.

The majority of ROHM's manufacturing equipment has been developed in-house. This has given ROHM the ability to respond immediately to changing market needs. The extent of ROHM products is a result of innovations and the capability to adjust to market demands. Automotive, telecommunication, computer, and consumer OEMs are among the leading end users of ROHM products.

With the addition of SiC and IGBT models, more than 3,500 LTspice® models are available on the ROHM official website

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