Infineon Technologies IGOT65R045D2AUMA1

Overview

IGOT65R045D2AUMA1 from Infineon is a 650 V enhancement-mode gallium nitride (GaN) power transistor in PG-DSO-20 package, featuring 45 mΩ typical R_DS(on), 6 nC gate charge, and 76 A pulsed drain current. It delivers ultra-fast switching with zero reverse-recovery charge and supports reverse conduction-enabling high-efficiency totem-pole PFC and LLC resonant converters in datacenter SMPS.

For engineers reviewing the IGOT65R045D2AUMA1 datasheet, IGOT65R045D2AUMA1 pinout, IGOT65R045D2AUMA1 application, or IGOT65R045D2AUMA1 equivalent, key selection criteria include its Kelvin source configuration (Pin 8), isolated gate drive pins (9,10), heatslug-connected drain (Pins 13–18), and absence of connection on Pins 11,12,19,20-critical for layout integrity in high-dV/dt GaN designs.

Technical Context

This CoolGaN™ G5 device operates as a normally-off, high-voltage power switch optimized for hard- and soft-switching topologies. Its 200 mm wafer process ensures tight parameter distribution, with 1.2 °C/W junction-to-case thermal resistance and 200 V/ns maximum dv/dt rating supporting robust commutation under fast transient conditions.

The integrated Kelvin source (Pin 8) enables precise gate control independent of high-current source return path, while the dual gate pins (9,10) support low-inductance parallel drive. The device exhibits no Q_rr and negligible C_oss energy loss (6.6 μJ), making it suitable for >1 MHz operation in high-density power stages.

Key Specifications

Pinout & Package

Package: PG-DSO-20 (20-pin, surface-mount, exposed heatslug). Pin 1–7: Source (main current return); Pin 8: Kelvin Source (gate loop reference); Pin 9–10: Gate (dual inputs for low-inductance drive); Pin 11–12 & 19–20: Not connected; Pin 13–18: Drain/Heatslug (high-current drain path and thermal interface).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage GaN transistor applications.

Compared with GAN063-650WSB and TPH3205WS, IGOT65R045D2AUMA1 offers superior high-frequency performance due to its lower Q_G, Kelvin source, and reverse conduction-making it uniquely suited for advanced resonant and bidirectional topologies where layout-induced gate instability and body-diode loss must be eliminated.

Availability

IGOT65R045D2AUMA1 is available at Aetrix Electronics and suitable for server power supplies, 5G telecom rectifiers, and industrial motor drives requiring stable component supply, long-term lifecycle support, and traceable GaN sourcing.

Supply support for IGOT65R045D2AUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial chips, with global R&D and wafer fabrication facilities.

This part belongs to the CoolGaN™ G5 product line-designed specifically for high-frequency, high-efficiency power conversion in datacenter, telecom, and industrial SMPS where silicon limitations in speed and loss are prohibitive.

FAQ

What is the purpose of Pin 8 (Kelvin Source) on IGOT65R045D2AUMA1?

Pin 8 provides a dedicated Kelvin connection to the source potential for gate drive reference, decoupling the gate loop from high di/dt main source current paths. This prevents V_GS distortion during fast switching and ensures stable turn-on/turn-off behavior-especially critical in >300 kHz totem-pole PFC layouts where source inductance can cause false turn-off.

Can IGOT65R045D2AUMA1 replace silicon MOSFETs in existing 650 V designs without layout changes?

No-direct replacement requires layout revision. The Kelvin source (Pin 8), dual gate pins (9,10), and heatslug-connected drain (Pins 13–18) demand specific routing: separate low-inductance gate loops, isolated Kelvin trace, and thermal pad alignment. Existing Si layouts lack these features and risk oscillation or thermal failure if reused unchanged.

Does IGOT65R045D2AUMA1 require negative gate voltage for reliable turn-off?

No. It is enhancement-mode and fully specified for 0 V to +6 V gate drive. While −2 V to +6 V is supported (per V_GS,pulse rating), reliable turn-off is achieved with 0 V gate drive due to its positive threshold (1.2 V typ) and absence of gate leakage drift-unlike depletion-mode GaN devices that mandate negative bias.

How does the 200 V/ns dv/dt rating impact system-level EMI design?

The 200 V/ns rating defines the maximum allowable voltage slew rate across drain-source during switching transitions. Exceeding this stresses internal gate oxide and may induce false turn-on via Miller coupling. Layout must limit stray inductance (<5 nH) and use gate resistors calibrated to keep actual dv/dt ≤150 V/ns-verified via oscilloscope measurement at the Kelvin source node.