GaN Technology

High Device Reliability

(V_GS rating: 8V)

High Heat Dissipation

(Switching frequency >1 MHz)

Small Size

(5.0mm x 6.0mm x 1.0mm)

Copper Clip Junctions Minimize Parasitic Inductance

ROHM’s novel 150V GaN HEMT features an unprecedented 8V gate withstand voltage that solves the breakdown voltage problem utilizing an original structure, expands the voltage margin during device operation for greater reliability in power supply systems for industrial and communications.

Here’s a quick video that explains the unsurpassable advantage of GaN technology…

Key Features
ROHM’s newly developed GaN devices offer the following advantages.

1. Original structure extends the rated gate-source voltage to 8V
Existing GaN devices with a withstand voltage of 200V or less typically have a rated gate-source voltage of 6V with respect to a gate drive voltage of 5V, resulting in an extremely narrow voltage margin of just 1V. Exceeding the rated voltage can cause reliability problems such as degradation and destruction, plus the gate drive voltage requires high accuracy control, which has been a major obstacle to the widespread application of GaN devices.

In response, ROHM succeeded in raising the rated gate-source voltage from the typical 6V to an industry-leading 8V by adopting an original structure. This expands the voltage margin during device operation, so even if a voltage overshoot exceeding 6V occurs during switching, the device will not degrade, contributing to higher reliability of the power supply circuit.

2. Optimized package provides excellent heat dissipation and facilitates mounting
ROHM’s GaN device utilizes a versatile package that delivers superior heat dissipation with a proven track record for reliability and mountability. This enables easy replacement of existing silicon devices and simplifies handling during the mounting process. Furthermore, using copper clip junction packaging technology reduces parasitic inductance by 55% over conventional packages, maximizing device performance when designing circuits for high-frequency operation.

3. Achieves over 96.5% power supply efficiency in the high-frequency band.

These new products maximize device performance by increasing the rated gate-source voltage and adopting a low-inductance package, achieving high efficiency of 96.5% or more in the high 1MHz frequency band, contributing to improved efficiency and greater miniaturization in power supply equipment.

Presenters

ROHM 4th Gen SiC MOSFETs

Our new 4th Gen SiC MOSFETs provide industry-leading low ON resistance without sacrificing short-circuit withstand time. Additional features include low switching loss and support for 15V gate-source voltage that contributes to further device power savings.

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Thermal Printheads

ROHM developed thermal printheads head utilizing a special substrate for excellent high heat performance that enables high resolution and high speeds even when using a resin ribbon along with models that adopt a hybrid coating to provide superior abrasion and corrosion resistance.

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Optical Sensors

ROHM's considerable lineup of optical sensors include high sensitivity, high reliability phototransistors,infraredlight emitting diodes,transmission/reflective type photointerrupters.

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Motor Driver catalog

Thermal Printheads

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Motor Drivers

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Laser Diodes

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With the unprecedented need for contactless sensing due to the global pandemic, optical sensors have been utilized in sanitizer dispensers at long-term healthcare facilities to ensure health and safety compliance.

In industrial and commercial applications, optical sensors are also being used for distance and temperature sensing and automation in Industry 4.0 applications. For example, optical sensors can detect liquid levels in process engineering facilities, such as petroleum levels in tank farms and hydrocarbon refineries, by integrating an infrared LED, light transistor, and a transparent prism tip.

Optical sensors are also being used for ambient light sensing in consumer electronics such as smartphones, with advantages such as extending battery life and optimizing screen brightness to match the amount of lighting in the environment.

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