The VBQA165A20S is a single N‑channel power GaN device built on advanced E‑MODE (enhancement‑mode) technology, housed in a compact DFN8(5X6) package, and optimized for high‑frequency, high‑efficiency power conversion. It features a 650V drain‑source voltage rating, 20A continuous drain current (ID), a typical on‑resistance of 110mΩ, a threshold voltage (VGS(th)) of 1.5V, and a wide gate drive range from -1.5V to 7V for easy interfacing with common controller ICs.
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| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| DFN8(5X6) | Single-N | 650V | -1.5~7V | 1.5V | 20A | 110(mΩ) | E-MODE |
Detailed Parameter
**Package**: DFN8(5X6)
**Configuration**: Single-N Channel
** Drain-Source Voltage (VDS )**: 650V
**Gate-Source Voltage (VGS)**: -1.5~7V
**Threshold Voltage (Vth)**: 1.5V
**Drain-Source On-Resistance (RDS(on))**:110mΩ @ VGS = 6V
**Maximum drain current (ID)**: 20A
**Technology**: E-MODE
Leveraging its excellent high‑frequency switching capability and low parasitic parameters, the VBQA165A20S is well suited for a wide range of high‑efficiency, compact power conversion scenarios. Typical application areas and their associated system modules include:
High‑efficiency AC‑DC adapters and fast chargers field – commonly used with flyback, quasi‑resonant (QR), or active‑clamp flyback converter modules.
LED lighting drivers field – suitable for Boost PFC power‑factor‑correction and LLC resonant topology modules.
Industrial switching power supplies, as well as server and telecom power modules field – can be integrated into half‑bridge/full‑bridge LLC or synchronous rectification DC‑DC converter modules.
Photovoltaic optimizers and energy storage system front‑ends field – can be combined with boost and flyback power conversion modules.
These combinations fully exploit the device’s high‑frequency switching advantages, helping to reduce the size of transformers and inductors, and improving power density and overall system efficiency.
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