company blog about Recycle Infineon GaN:GaN Bidirectional Switches,GaN Smart,GaN HEMTs,CoolGaN™ Drive

Recycle Infineon GaN:GaN Bidirectional Switches,GaN Smart,GaN HEMTs,CoolGaN™ Drive

Shenzhen Mingjiada Electronics Co., Ltd. is a globally renowned electronic component recycling company. Through our professional recycling services, we help clients realise the value of their idle electronic components. With our strong financial standing and comprehensive service system, we have earned the long-term trust and cooperation of numerous manufacturing clients and traders.

Recycling Process:

1. Inventory Classification and Submission of List

Customers should first classify their idle inventory, specifying the model, brand, production date, quantity, packaging type and condition. A detailed inventory list can be submitted to our evaluation team via email or fax.

2. Professional Evaluation and Quotation

Upon receipt of the list, the company will complete a preliminary evaluation and provide a quotation within 24 hours.

3. Contract Signing and Logistics Arrangements

Once both parties have agreed on the price, a formal recycling contract will be signed to clarify the transaction details.

4. Goods Inspection and Prompt Payment

Upon arrival at our warehouse, the goods will undergo a final quality inspection. Upon passing inspection, payment is guaranteed within three working days to ensure clients receive their funds promptly. Flexible payment methods include wire transfer, cash, or other arrangements tailored to client requirements.

I. GaN HEMT: Infineon GaN Power Core Devices

The GaN HEMT (High Electron Mobility Transistor) serves as the fundamental power unit in Infineon’s GaN solutions. Utilising an enhancement-mode (e-mode) architecture, it differs from traditional silicon MOSFETs by featuring zero reverse recovery charge (Qrr=0), extremely low gate charge (Qg), ultra-high-frequency switching capability (MHz range), and low on-resistance (Rds(on))—fundamentally reducing switching and conduction losses.

Core Technologies and Product Features

Enhanced e-mode design: Requires no negative drive voltage, features zero gate leakage, simplifies the drive circuit, is compatible with silicon MOSFET drive logic, and lowers the system design threshold;

Low-loss and high-frequency advantages: Qrr ≈ 0, eliminating reverse recovery losses during hard switching, supports ultra-high-frequency operation from 1 to 10 MHz, significantly reduces the size of passive components such as inductors and capacitors, and enhances power density;

Voltage and Current Coverage: Mainstream coverage includes 600V/650V (consumer/industrial), 1200V (automotive/energy storage/industrial high-power), with on-resistance ranging from milliohms to tens of milliohms, and current from a few amperes to hundreds of amperes, catering to all scenarios from low-power fast charging to high-power automotive power supplies;

Package Innovation: Utilises miniaturised packages such as PQFN, TO-Leadless and D²PAK to reduce parasitic inductance and resistance, accommodate high-density PCB layouts, support surface-mount technology (SMD), and enhance system thermal management and reliability.

Typical Applications

Consumer fast charging (65W–240W), server power supplies, industrial switching power supplies, and PV micro-inverters.

II. GaN Bidirectional Switch: The core of bidirectional power transmission, enabling energy storage and bidirectional OBC in automotive applications

Infineon’s GaN bidirectional switch is an integrated power device customised for scenarios involving bidirectional energy flow. It addresses the key pain points of traditional silicon solutions (such as bidirectional totem-pole and back-to-back MOSFET configurations) – high losses, large form factor and frequency limitations – to achieve integrated, highly efficient operation combining “forward rectification and reverse inversion”.

Core Technologies and Product Features

Monolithic integrated bidirectional architecture: Two enhancement-mode GaN HEMTs are integrated onto a single chip, with a common-source/common-drain optimised layout. This results in extremely low parasitic parameters and strong switching synchronisation, eliminating the losses and reliability issues associated with discrete components;

Zero reverse recovery + low bidirectional loss: Maintains GaN’s inherent low-loss characteristics during both forward conduction and reverse blocking, supporting soft-switching and hard-switching bidirectional operation, with efficiency improved by 3%–5% compared to silicon solutions;

High-voltage and high-frequency bidirectional capability: 650V/1200V voltage rating, supporting MHz-level bidirectional switching, suitable for applications such as automotive OBC (AC <-> DC bidirectional charging), energy storage PCS, UPS, and DC microgrids;

Simplified topology and system: Replaces multiple discrete components in traditional bidirectional topologies, reducing PCB footprint, lowering drive complexity, and enhancing system power density.

Typical Applications

Vehicle-to-Grid/Load (V2G/V2L) bidirectional on-board chargers (OBCs), bidirectional energy storage converters, DC fast-charging stations, and uninterruptible power supplies (UPS).

III. GaN Smart Devices: Power + Driver + Protection in One, for Ultimate System Simplification

Infineon’s GaN Smart Devices (Smart GaN) are a monolithic / package-level integrated solution comprising **“GaN HEMT power chips + dedicated driver ICs + comprehensive protection functions”**. They address the three major design challenges of discrete GaN solutions—namely “driver matching, parasitic interference and lack of protection”—significantly shortening development cycles and enhancing system reliability.

Core Technologies and Product Features

Highly Integrated: Integrates enhanced GaN power transistors, gate drivers, under-voltage lockout (UVLO), over-current protection (OCP), over-temperature protection (OTP), dv/dt control, Miller clamping and other functions within a single package, eliminating the need for external driver chips or complex protection circuits;

Optimised Drive and Interference Suppression: Features a dedicated built-in GaN driver that precisely controls gate voltage, drive current and switching speed, suppressing electromagnetic interference (EMI) caused by high-frequency dv/dt and di/dt, and preventing gate oscillation and false triggering;

Plug-and-play, lowering the design barrier: Compatible with 3.3V/5V/12V standard logic levels, eliminating the need for complex gate bias or negative voltage shutdown designs, allowing even beginners to quickly complete high-frequency power supply designs;

High reliability and consistency: Chip-level integrated protection with nanosecond-level response times prevents damage to power devices caused by overstress; standardised packaging and parameters enhance consistency in mass production.

Typical Applications

Low-power fast charging (30W–100W), portable power banks, adapters, small industrial power supplies, and powering IoT devices.

IV. CoolGaN™ Drivers: Dedicated Drivers Unlocking the Ultimate Performance of GaN

The CoolGaN™ driver is a dedicated gate driver IC customised by Infineon for its own GaN HEMTs and GaN bidirectional switches. Optimised for the characteristics of GaN devices—low gate threshold, sensitivity to drive voltage and current, and susceptibility to oscillation at high frequencies—it is the core guarantee for achieving high-frequency, high-efficiency and high-reliability in discrete GaN solutions.

Core Technologies and Product Features

GaN-specific driver parameters: Output current ±2A–±10A (peak), compatible with GaN devices of varying power ratings; gate drive voltage precisely controlled within 6V–15V (the optimal operating range for GaN), preventing overvoltage breakdown and incomplete conduction due to undervoltage;

Low Parasitic, High-Frequency Compatibility: Ultra-short propagation delay (<10 ns) and fast rise/fall times, supporting MHz-level switching; built-in Miller clamping and active Miller suppression, completely eliminating false conduction caused by the Miller effect during high-frequency switching;

Comprehensive protection features: Integrated UVLO, overcurrent detection, short-circuit protection, overtemperature protection, with optional isolated or non-isolated configurations (digitally isolated versions support 2.5kV–5kV isolation), suitable for high-safety-requirement applications such as automotive and industrial sectors;

Compatibility and adaptability: Supports single-ended, half-bridge and full-bridge topologies; compatible with the full range of Infineon GaN devices (600V, 650V and 1200V); available in two main categories: non-isolated (e.g. 1EDF series) and isolated (e.g. 1EDI series), covering all application scenarios in consumer, industrial and automotive sectors.

Typical Applications

High-power server power supplies, automotive DC-DC converters, energy storage inverters, industrial high-frequency power supplies, and high-power fast charging (200W+).