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Higher efficiency.
Higher power density.
Lower system cost.
New system design opportunities.
This is the GaN Revolution.
Backed by customer commentary and published metrics, Transphorm’s high-voltage GaN FETs move power electronics beyond Silicon’s limitations.
Customer Innovations
Transphorm’s customer base includes product manufacturers unsatisfied with the status quo. Companies on the bleeding edge of innovation that strive to break their own power system performance records, raising the bar industry-wide. Gallium nitride power transistors are proving to be their disruptive technology of choice.
Spotlight: Customer Products in Production
Inergy’s Kodiak Extreme utilizes a photovoltaic (PV) inverter and battery charger both integrating Transphorm’s JEDEC-qualified GaN platform. These power systems result in a generator that is more powerful, lighter, and quicker to charge than competitive products.
TDK-Lambda’s redesigned standard power module uses a bridgeless totem-pole power factor correction topology to optimize Transphorm’s TPH3206LDG FET in an 8×8 PQFN package.
Aviation electronics supplier AES produces two disruptive SMPS’s that use Transphorm’s GaN. The PS250X (500 W) and PS6120 (1.2 kW) PSUs consistently outperform competitive systems with higher efficiency in lower weight form factors.
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Disruptive Reliability and Performance
High quality, high reliability GaN in standard TO-XXX packages.
Transphorm’s GaN FETs switch up to 4x faster than Silicon solutions. Further, unlike Si MOSFETs, the GaN transistors are inherently bi-directional and optimized in a bridgeless totem-pole power factor correction design.
Transphorm commits to producing the market’s highest quality, highest reliability high-voltage GaN devices.
Our third generation platform demonstrates that commitment. Gen III 650 V FETs offer the highest threshold voltage (4 V) and gate robustness (±20 V) available today.
For more information, the Reliability Lifecycle of GaN Power Devices paper includes published data on our JEDEC and AEC-Q101 qualified technology.
Cascode vs. e-mode
Our Q+R is in large part enabled by our design choice. Today, cascode is the only configuration proven to enable GaN in real-world applications. Transphorm’s GaN is backed by extensive lifetime, quality and reliability data—unavailable with other configurations today, such as pGaN e-mode.
Not all GaN is alike.
Comparing Transphorm cascode to today’s e-mode.
| Attribute | Cascode (Transphorm)* | e-mode (market)* |
|---|---|---|
| Quality, reliability, lifetime performance | Extended JEDEC, AEC-Q101, lifetime testing | Limited data |
| Device breakdown voltage (TJ = 150°C) | 650 V (qualified), 1200 V (measured) | 500 V and 600 V (measured |
| Maximum transient protection | 800 V | 750 V |
| Gate drive safety margin (RON @ VGS) | 10 V | 1 V |
| Gate drive noise immunity | 4.0 V (typical) | 1.7 V (typical) |
| Negative gate drive required | No | Yes |
| Slew rate control | Yes | Yes |
| Reverse conduction operation (VSD) | 2.2 V to 2.6 V | 6 V to 9 V (defined by gate drive) |
| Saturation current limit (TJ = 150°C) | > 3x higher than e-mode | Reduced channel and gate charge |
| Paralleling | Up to two TO-XXX devices | More than two devices possible |
| FOM (RON * QOSS) | Industry standard | Minimal increase with reduced Q+R |
| Die size | Industry standard | Smaller with reduced Q+R |
| Thermal performance (72 mΩ) | 50°C at 1500 W 83°C at 2526 W |
80°C at 1500 W |
*Unless specified, data is based on a 50 mΩ device.
Markets
High-voltage GaN technology benefits numerous markets that require reliable higher efficiency, higher performance power conversion. The highest adoption rates are projected for the following application areas:
Infrastructure and IT
Power Supplies
Increases clean power output in standardized server and telecom form factors.
Consumer and Computing
Adapters, Gaming Power Supplies
Improved efficiencies result in lower thermals, improved power density and lower system cost.
Broad Industrial
Battery Chargers, UPS
Reduces size and weight of systems that run industrial factories, charge battery powered forklifts, electric vehicles and keep critical data accessible..
Automotive
EV and Charging
Generates longer distance per charge with a lower overall system cost.