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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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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| 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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