VIPERGAN65TR STMicroelectronics Integrated Circuit (Other) In Stock
Advanced quasi-resonant offline converter integrating an E-mode GaN HEMT switch with current-mode resonant control for high-efficiency flyback power supplies. Accepts 9V to 23V bias input and delivers reduced switching losses in a 15-pin QFN package for compact adapter designs.
- Manufacturer
- STMicroelectronics
- Package
- Other
- Pin Count
- 17
- Lifecycle
- END OF LIFE
- Datasheet
- VIPERGAN65TR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.7700(MOQ 100)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of VIPERGAN65TR?
- Integrated E-mode GaN HEMT switch enables switching frequencies beyond 100 kHz with lower gate charge than silicon MOSFETs, shrinking transformer and filter component size
- Quasi-resonant current-mode control reduces switching losses at zero-voltage crossing, improving efficiency at light loads in charger and adapter designs
- Monolithic integration of GaN power switch and controller in one IC eliminates gate-drive routing parasitics that degrade EMI performance in discrete GaN designs
- Built-in protection features including over-current, over-temperature, and output over-voltage protection reduce external component count in offline SMPS designs
- 15-pin QFN package with 9V to 23V gate-drive input range enables flexible Vcc bias from auxiliary winding in flyback and resonant converter topologies
What is VIPERGAN65TR used for?
The VIPERGAN65TR targets high-efficiency offline flyback power supplies for USB PD chargers, notebook adapters, and auxiliary SMPS in industrial equipment where power density above 30 W per cubic inch is required. The integrated GaN switch and quasi-resonant controller reduce standby power below regulatory limits such as ErP Lot 6 and CoC Tier 2 while maintaining full-load efficiency above 90% across a universal input voltage range.
What are the specifications of VIPERGAN65TR?
| Factory Lead Time | 16Weeks |
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | RESONANT CONTROL |
| Input Voltage-Max | 23V |
| Input Voltage-Min | 9V |
| Input Voltage-Nom | 14V |
| JESD-30 Code | R-PQCC-N15 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC15/16,.2X.24,40/20 |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 3.2mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 330kHz |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 1mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Where can I find the VIPERGAN65TR datasheet?
VIPERGAN65TR Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for VIPERGAN65TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What switching topology does the VIPERGAN65TR use and how does quasi-resonant control improve efficiency?
The VIPERGAN65TR uses a quasi-resonant current-mode flyback topology where switching transitions are timed to occur at the valley of the drain voltage waveform. This zero-voltage switching reduces capacitive switching losses by 30–50% compared to hard-switched flyback converters, directly improving efficiency at light loads and lowering EMI noise in USB PD and notebook charger designs operating up to 65W.
What is the gate-drive input voltage range of the VIPERGAN65TR and how is it typically supplied?
The VIPERGAN65TR accepts a gate-drive supply (Vcc) from 9V to 23V, with a nominal 14V operating point. In a flyback converter, this bias is typically derived from an auxiliary winding on the power transformer, enabling self-sustaining operation after startup without a separate Vcc regulator, while the 23V maximum clamp protects the E-mode GaN gate oxide during load transients.
How does integrating the GaN HEMT into the VIPERGAN65TR simplify PCB layout compared to a discrete GaN solution?
Integrating the E-mode GaN switch and controller in the same 15-pin QFN package eliminates the high-frequency gate-drive loop between a separate driver IC and the GaN transistor, reducing parasitic inductance from several nH to sub-nH levels. This allows switching at frequencies above 100 kHz with controlled ringing, reducing transformer core size by 40% versus a 65 kHz silicon MOSFET flyback at equal power levels.
In which power supply applications is VIPERGAN65TR a more cost-effective choice than a discrete GaN FET plus controller combination?
The VIPERGAN65TR offers a lower total BOM cost for designs below 65W, such as single-port USB PD chargers and 20W to 45W laptop adapters, where a separate GaN driver IC plus discrete FET would require 2–3 additional components and a 4-layer PCB to manage gate-loop inductance below 1 nH. The integrated solution fits on a 2-layer board, saving 15–20% in manufacturing cost per unit.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $2.0900 | $209.00 |
| 250+ | $1.9800 | $495.00 |
| 500+ | $1.9300 | $965.00 |
| 1000+ | $1.8700 | $1870.00 |
| 2000+ | $1.8200 | $3640.00 |
| 4000+ | $1.7700 | $7080.00 |
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